SCIENTIFIC ABSTRACT SEVCHENKO, A.N. - SEVCIK, A.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001548210015-4
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 23, 2000
• Sequence Number: 15
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

SEVCHENKO, A.Np; ZYATIKOV, I.P. akademik
- Y
Infrared spectra of asymmetric diacyl peroxides. Dokl.AN SSSR 136
no.5:1-104-UO7 F 161. (MMA 14-- 5)
1, Belorusskiy gos. universitet im. V.I.Lenina. 2., AN BSSR (for
Sevchenkoi).
(Peroxides--Spectra)

OLIDEKOP., YU.A.,- MOYSEYCHUK, K.L.; SEVCRENKOl A.N., akademik;
-ZYkTIKOVY I.P.
1,1-Bis-acylperoxy-dicyclohexyl peroxides. Dokl. AN SSSR
139 no-5:2217-2120 Ag, 161. OURA 24:8)
16--~-Ihatitut fiziko-organicheskoy kbimil LN BSSR i Belorusakiy
gosudarstvemyy universitet im. V.I.Lenina, 2. AH BSSR (for
Sevchenko).
(Peroxides)

S/048/62/026/001/001/018
B125/B1O4
AUTHORS*. Sevchenko, A. N., Shishlovskiy, AI A,
TITLE: Life and work of Sergey Ivanovich Vavilov
PERIODICAL: Akademiya nauk SSSR. Izvestiya. Seriya fizicheska,,;a,
v. 26, no. 1, 1962, 7-13.
TEXT: S. I. Vavilov was born in Moscow on March 24, 1891. After graduating
from a commercial school he enrolled at the fiziko-matematicheskiy
fakulltet Moskovskogo universiteta (Division of Physics and Mathematics of
the Moscow State University). He was taught physics by P. N. Lebedev,
A~ A. Eykhenval'd, N. A. Umov; mechanics by N. Ye, Zhukovskiy and
S, A. Chaplygin; mathematics by B. K. Mlodzeyevskiy, D. F. Yegorov,
N. N. Luzin; botany by K. A. Timiryazev; chemistry by N~ D, Zelinskiy;
astronomy by P. K. Shternberg; and crystallography by V. I. Vernadskiy.
The early scientific work of student Vavilov at P. N. Lebedev's
laboratory was supervised by P. P. Lazarev, also a student of the latter.
Vavilov's paper "Thermal bleaching of dyes", the result of an investiga-
tion conducted in the underground laboratory, set up after the student
Card 1/4

S/048/62/026/001/001/018
Life and work of Sergey... B125/BIO4
agitations of 1911, won him the first acknowledgement, After graduation
in 1914 he rejected, for political reasons, an appointment to the kafedra
fiziki Moskovskogo universiteta (Department of Physics of the Moscow
University), and carried on studies on radiation during his military
service of 1914-1918. After going through the degrees of magister and
docent, he headed the kafedra obshchey fiziki (Department of General
Phvsics) as a professor. At the same time, he was professor of physics
an~ theoretical illumination engineeriag at the Moskovskoye vyssheye
tekhnicheskoye uchilishche (Moscow School of Higher Technical Education)
and other such institutes. Between 1918 and 1930 he was the head of the
.-,tdel fizicheskoy optiki v institute fiziki i biofiziki Narkomzdrava
(Department of Physical Optics at the Institute of Physics and
Biophysics of the People's Commissariat for Health), He was appointed
both Corresponding Member and Real Member of the Academy of Sciences USSR
in 1931 and 1932, respectively. Likewise in 1972, he was appointed
director of the Fizicheskiy institut Akademii nauk (Physics Institute of
the Academy of Sciences) and scientific head of the Gosudarstvennyy
opticheskiy institut (State Optical Institute.), Among hundreds of
scientific papers, more than a hundred deal with -ohysical optics,
Card 214

3/046/62/026/00 1/00 1/0 1 a
Life and work of Sergey... B125/BI04
especially with light energy and its effect on matter, Between 1922 and
1924, Vavilov together with V. L. Levshin studied the dependence of
polarization of the luminescence of solutions on the viscosity and nature
of dyes. Always jointly with Levshin, he investigated the dependence of
the maximum degree of polarization on the wavelength of the exciting light,
the effect of the concentration of the luminescent substance on the eld,
and the luminescence (discovered by Aspirant P. A. Cherenkov in 1932~iof
solvent in the gamma irradiation of uranium salt solutions. The theory
of this phenomenon was formulated by I, Ye. Tamm and I. M. Frank.
Vavilov developed a visual method of measuring the quantum fluctuations of
light; luminescence lamps; methods of quantitative luminescence analysis
for use in engineering, medicine, and agriculture; luminescence and practi-/
cal applications of crystal phosphors~ Together with Ye. M. Brumberg he
designed a new type of luminescence microscope. Vavilov spent much of his
efforts in training young scientists and scientific teams, He won such
collaborators as V. A. Fabrikant, I. M. Frank, B. Ya, Sveshnikov,
Ye. M. Brumberg, A. A. Shishlovskiy, the aspirants P. A. Cherenkov,
N, A. Dobrotin, L. G. Groshev, I. A. Khvostikov, and the luminescence
specialists P. P. Peofilov, M. D. Galanin, E. I. Adirovich,
Card 3/4

S/048/62/026/001/00I/Oi8
Life and work of Sergey- B125/3104
V. V. Antonov-Romanovskiy, M. A. Konstantinova.Shlezinger,
Z. A,, Trapeznikova, V. V, Zelinskiy, N, A, Tolstoy, A, M. Bonch-Bruyevich,
fil. N. Alentsev et al. Vavilov was greatly concerned with introducing
scientific methods into industrial production processes, Under his
supervision, the Fizicheskiy institut im. P. N. Lebedeva (Physics Institute
imeni P, N. Lebedev), formerly a modest laboratory of physics, expanded
into one of the leading rasearch institutes of the Soviet Union. Vavilov
also devoted much of his efforts to the organization of the FIAN and of
the State Optical Institute, and promoted nuclear physics. He participated
in the reorganization of the Academy of Sciences and in the coordination of
scientific activities in the various Soviet Republics. His name is also
linked with methodology, history of physics, and popular scientific
literature. Large scientific centers concerned with problems of
luminescence now exist or are being built at Kiyev, Tartu, Minsk,
Chelyabinsk, Tomsk, Odessa, and other cities,
Card 4/4

SEVCHENKO, A.N.
Luminescence spectra of porphyrins. Izv..AN SSSR. Ser.
fiz. 26 no.1:53-60 Ja 162. (KEM 15:2)
(Lumi nescence)
(Porph-yr:Lns--Zpectra)

Or
-ra c;f z

- i ~
~ k I ' V !-Iii, ;;.I:.; -N-jHJj'iW' . "
STH J 1'CVA j'.I.; G"JitIl"k, A
of the acidity cf tl,-e meditra on the
Porphyrins. Dold. All 10SR 7 no.11.736-739
optical properties of
N 163. (MIPA 17:9)
1. Institut fiziki AN

1 10759-63 E'HP(J)/EPF(c)/E:WT(1)/
EWT(m)/BDS--AFFTC/ASD--Pc-ii/pr--4--RK/v-,v
/0809/08U
ACCESSION NR: AP3002789 S /0051163 /014/006
AUT.HOR: Gurinovich, G. Sarzhevskiy, A. Sevchenko. -A. N.
TITLE: New data on the dependence of polarization rate on the wavelength of
the fluorescence
SOURCE: Optika i spektroskopiya, v. 14, no. 6, -1963, 809-812
TOPIC TAGS- polarization, fluorescence, phthalimides
ABSTRACT: To prove.a previous assertion of the authors that the polarization
of complex molecules depends on the absorption and emD3sian frequencies,
polarization rate has been measured in several phthalimides as.a function of
excitation and luminescence wavelength. A careful analysis of the dependence
of fluof escence spectra on excitation wavelength for 3-monomethylaminophtha-.
limide in plexiglass showed that when the compound was excited with wavelengths
of 436, -;~15, and 365 mg the. emission spectra nearly coincide. - The change in
polarization rate with respect to the emission spectrum amounts to 6.516 over
Card l/ 2

7
ACCESSION NR: AP3002789
eement with previous
an interval of 6000 cm a magnitude in good.agr data.
It was shown that when 3-monomethylamino-N-methylphthalimide in glycerin
was excited with wavelengths of 436 and 405 mg the spectra coincide; when the
compound was excited with waves of 365 mg there is a small discrepancy,
which is due to the addition of "blue" luminescence of glycerin. In this case
the change in polarization rate amounts to 7% over the same interval of
6000cm'~'-I. The change inpolar'zation rate with respect to the* fluorescence.-
spectrum for 2-acetylanthraceneiin g-lycerin at 20C and in isobutyl alcohol at
120t: was 8 and 1376, respectively, over the same'interval. The results obtained
are taken to prove the previous assertiom Orig. -art. has: 3 figures.
ASSOCIATION: none
SUBMITTED: 28Jun62 DATE ACQ: 15Jul63 ENCL:'00
SUB CODE: 00 NO REF SOV: 005- OTHER: 003
C/d W21

S/04 63/027/001/017/043
BI 63Y31 8 0
AUTHORS: SevcbeW-.c~__A__N_._, Olldekop, Yu. A., Zyatlkov, I. P., and
Bylina, G. S.
TITLE: Use of vibrational spectra for the investigation of the
reaction mechanism of auto-oxidation
PERIODICAL: Akademiya nauk SSSR: Izvestiya. Seriya fizicheskaya,
v. 27, no. .1, 1963, 41-44
TEXT: In a spectrophotometer OKC-14 (IKS-14), the infrared absorption
spectrum of a reaction mixture of benzaldehyde and M was recorded
4
during consecutive stages of the reaction in the range 700-2000 cm
After the end of the auto-oxidation, the absorption bands of a residue of-
non-oxidized benzaldehyde and of perbenzoic ant] benzoic acid were'found,
but no evidence for the presence of any other intermediate products.
During the reaction, however, bands with maxima appear at 852 cm-1 and
1255 cm- 1 which belong-to neither perbenzoic nor benzoic acid. It is
assumed that these new bands !belong to some unstable intermediate product
Card 1/2

S/048/63/027/001/017/043
Use of vibrational speQtra for the ... B163/B180
preceding,the perbenzoic acid. This paper was presented at the 14th
Conference on Spectroscopy in Gor'kiy, July 5-12, 1961. There are 3
figures.
ASSOCIt'3ION: Belorusskiy gos. universitet im. V. I. Lenina (Belorussia7n
State University imeni V. I. Lenin)
Card 2/2

SKVCHENKO, A. N.; OLIDEKOP, Yu. A.; ZYATIKOV, I. P.; BYLINA., G. S.
Ure of vibration spectra in studying the mechanism underlying
self-cocidation reactions. Izv. AN SSSR,, Ser. fiz. 27 no.l:
41-44 Ja 163. (MIRA 16:1)
1. Belorusgkiy gosudarstvanrqy universitet im. V. I. Ionina.
(Molecular spectra) (Oxidation)

L 1011~1_62 EWT (11)/MS--AFFT OASAASD-3/110
ACCESSION IM: AP3=310
3/0048/6j/07/0tj/0631/06~~,
157,
AUTHOR: Volod1ko, Lo V*j ftwhenlwp h=94 D, 8 ro,7
TIMM Teppe2iNture dependence and nature of the 41 tronle absomtIon svectra'~f
uia-,wl co=x=ds [Rej)ort: Eleventh Conference on Luminescence held at MLnsk
10- 1.5 Seyi_. 1962 J.
SOURCE: Izveat1ya, AN &%9&, Berlya fizicheskaya, vi, 27s no, 5 1963., 651-655
TOPIC TAGS: absorptionp fluorescence, urazlwl compounds
ABLMTAC!r: - A distinctive tralt of the absorption atid. luminescence apectm of
uranyl compounds Is their strong temperature dejxmde=e,,: vh1ch reflects changes
In the interaction of the urarorl ion with the s=imnx1ing medium. Whereas the
origin-of the fluorescence spectra of umrql conpoimds Is fairly weJ_1 known, this
is not true of the absorption spectra, Investigation of.the teaperature
dependence of the fluorescence and absorption spectxa can help elucidate the
nature of the electronic absorption spectra, The 1:Mthors recorded'the
fluorescence and absorption of acid-and organic so:Ixtions of a number of urwwi
Cardl/2.

EWp(.i)/EW-1(1)/EWP(q)/EWT(m)/BD~S--AFFTC/A.9D/ESD-3/SSD--PC4-
L 2858-63
-71JP(c)
RM/JD/MAY
ACCESSION NR: AP3001344 s/oo48/63/027/oo6/O7lO/o716
70
AUTHOR: Sevchenko, A. N.; Kuznetscrva, V. V.; Khomenko, V. S.
TITIE: 111minescence of solutions and salts of origanic-rare earth complexes
[Report of the Eleventh Conference on Luminescence he in Minsic ffff7tt6
September 196P-f-
SOURCE: AN SSER. Izv. Seriya fizicheskaya, v. 27, no. 6, 1963, 710-716
TOPIC TAGS: luminescence, rare earth-organic complexe!sj analysis of rare earths
ABSTRACT: Investigation of the luminescence of rare earth compounds is of
interest in view of the distinctive nature of the-spectroluminescent properties
of this class of compounds and the light-such studies throw on different
theoretical and practical problems. - For.the pres-ant study there vere 'synthesized
compounds of 14 rare earth elements with various organic addends:'
dibenzoylmethane, benzoylacetone, acetylacetone, derivatives of salicylaldebyde
and salicylic acid, derivatives of 8-bydro.Vquinoline, alpba-substituted pyridines,
etc. Most of the complexes had the metal:addend :?r9portions 1:3. The absorption
Card

L 9858-63
ACCESSICK NE: AP30013"
spectra of complexes vith dibenzoylmethane.in etY*-1 alcohol are given. The shift
of the min absorption band and decrease of the absorption coefficient are
criteria for the existence of stable complexes in solution. The luminescence of
Eu, Sm, Th, Dy and Yb couplexes insolution and in the crystalline state is
excited in the near IN, that is, in the continuos absorption region of the
organic part of the molecules. The complexes formed by the other rare earths
exhibit no or only weak luminescence. The excitation mechanism is discussed.
Level and transition diagrams for rare earth complexes with scme organic molecules
are proposed and energy transfer (raigration) is discussed. Use of organic
complexes and observation of luminescence provides a simple and reliable method
for determination of.the luminescing rare earth elements. The spectroluminescent
rare barth-organic complex procedure should be particularly useful for
determination of the total rare earth content andfor checking the purity of some
substances. Orig. art. has: 4 figures.
ASSOCIATICK: none
SUBNITTED: 00 DATE ACQ: oijul63 ENCL: 00
bIJB CCDE: P41CH NR FEF SOV; 014 QTM: 009 FR AM: 29Au963
C.,d 2/2

L 9857-63 EW(l) /EW(m) IBDS-!~.Al~FTCIASDIESD,-31AFE-RKINAYIIJP(G)
ACCESSION M.- Ap3ool,346 3/0048/63/027/006/07;~~/0723
AUTHOR: Gurinovich, G. P.;, Ye. & Seychenko, A. N.
. ....................
TITIE: Concerning the shape of J~ ..
luminescencespectxa under anti-Stokes cxcitation.
[RePorL of -the Elerventh Conference on Inminescenca held in Ydnsk from 10 to 15
September'i9621-
SOURCE: AN SSSR. Izv. Seriya fizicheakaya,, v. 27,, no. 6, 1963, 720-72-3
TOPIC TAGS': Stokes and anti-Stokes excitation, luminescence of organic molecules,
fluorescein., rhodamine B,, trypaflavine, ecsin,, (,,zmdin,, phthalimides
ABSTPACT: Numerous investigations of the relation between absorption and
luminescence spectra have shown that for Stokes excitation thermodynamic
equilibrium is attained during the lifetime oftlie excited stalte. yet the
existence of the "Stokes cutoff" of the lumineacence spectra with excitation in
'the anti-Stokes region implies an energy deficl~ that is not conpensated during
the excitation lifetime. There is nog6od theoreticel explanation for the
difference; moreover, most experimental data rm the "Stokes cutoff " kre rather
Card 1/3

L 9857-63
ACCESSICK M: AP3001346
61eifid - in need of verif ication with the 'aid of modem techniques. The present
Work was devoted to investigation of therdependence of the sha s
pe of 11mine cen-e
spectra on the excitation wavelength in.the Stokes;imd anti-Stokes region. The
radiation vas obtained from mercury and xenon dischimSe tubes and the desired
wavelengths isolated by means of a D14R-1 dQuble m;=)chromator. Care was taken to
minimize scattering and to'take the remaining, scattAlwed -radiation into accaant.
For the measurements there vere chosen substances w:d solvents with maxi=m
overlapping of the lu4dnescence and absorption spectra. The luminescent
substances studied were fluoreacelp, rho4amine B, trypaflavine, eosin, esculin
and 4 series of pht _~vat Tea. The solvents were ethyl a1cphol, vater,
glycerol, benzene-, aniso dioiane. In-the case, of fluorescein it vas found
that althaugh the exciting s extend far into the region of fluorescence, there
;a no noticeable shortening of the short vavelength - of the fluorescence
Part
spectrum. The spectral intensity distribution in tb~t fluorescence spectra of
eosin and esculin in alcohol (and esculin in water) shows no excitation
wavelength dependence;- The. picture for the phthalim:,~des,is morecomplicated and
somwhat difficult to interpret, Def initive 6nolusions mui;t avalt further.
studies. Orig. art. bas: 3 figures.
ASSOCIATION: none
'Card 2/3
.............4.................. ..........

IM-EF

5/053/63/079/002/001/004
B1012/B186
AUTHORS: Gurinovich, G. P., S~vc Solov'yev, K. N.
TITLE: Spectroscopy of porphyrin8
PERIODICAL: Uspekhi fizicheskikh nauk, v- 79, no. 2, 1963, 173 - 234
TEXT: The present review article covers the published lit6rature from
1933 to 1961. The chapters are as follows: (1) Introduction; (2)
Chemical structure of the porphyrin molecules; (3) IR spectra of the
porphyrins and problems of the molecule structure; (4) The electron
spectra (at 3orp't'ion spectra, mirror symmetry of absorption and emiasion
spectra, external effects on the spectra, effect of the pH of the soluticr4-
offect of the metal in the case of metal porphyrins, transitions with the
participation of metastable states); (5) quantum yield and luminescen 'ce
period; (6) Polarized fluorescence of porphyrin derivatives (maximum
polarization and the symmetry in the molecule structure, polarization
spectra and the oscillator model of the porphyrin molecule); (7) Inter-
pretation of the electron spectra (theory, experiments, interpretation of
the vibrational spectra ; (8) Spectroscopy of the associated forms of the
porphyrin molecules; (9~ Paramagnetic resonance. There are 27 figures and
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S/053/63/()79/002/001/004
Spectroscopy of porFhyrins B102/B186
193 references.
Card 2/2

SEVCHENK09 A.N. (Seuchanka, A.N.]; UKMYKO, D.S. (Umreika, D~S.]
Mirror symetry and the nature of electron absorption spectra of
uranyl compounds. Vestsi AN BSSR. Ser. fiz.-tekh. nav. no.32
37-44 163. (MM 16:10)

OL'DEKOP, Yu.A.; SEVCHENKO, A.U.; ZYATIKOV, I.P.z YELINITSKIY, A.P.
Acyl peroxides. Part 2: Synthesis and properties of aliphatic
nonsymmetrical diacyl peroxides with unbranched chains. Zhur.
ob. khim. 33 no.8:2771-2774 Ag 163. (MIRA 16:11)
1. Belorusskiy gosudarstvennyy universill-et imeni V.I. Lenina.

GURINOVICHY G.P.; SffULIGA, A.M.; SEVCHENKO, A.N., akademik
Polarized lumininescence of the reduced forms of porphyrins.
Dokl. AN SSM 153 no-3:703-705 N 163. (MIRA 17:1)
1. AN SSSR (for Sevchenko).

SEVCHENKO, A.N., akademik; KONEV, S.V.; KATIBEKOV, M.A.
Oscillatory nature of the long-wave absorption band of
tryptophan. Dokl. P11 SSM 153 no.4:875-877 D 163.
(MIRA 17:1)
1. Belorusskiy gosudarstvennyy universitet im. V.I. Lenina.
2. AN BSSR (for Sevchenko).

--PEVCHENKO, A.Nei &kELdemik; SOLOVIYEV, K.N.; SHKIT.MAN, S.F&;
SARZHEVSKAYA, M.V.
Quasi-line electron vibration spectra of porphiue and
dibydroporphine. DokI. AN SSSR 153 no.6:1391-1394 D '63.
(MIRA 17: 1)
1. Institut fiziki AN BSM. 2. AN BSSR (for Sevchenko).

zk~" AD
ACCESSION NRt AP4033646 S/0250/64/008/003/0147/0149
.AUTHORSt Sevchenkop A. N.; Tkachevp V.-D.
TITLE: Kinetics of photoconductivity in n-type silicon single crystals irradiated
by high speed electrons
SOURCE: AN BSSR. Doklady*j v. 8j% no- 3, 1964) 147-149
;TOPIC TAGS.- impurity photoconductivity, Alicon single crystals electrofi beamp
:conduction zone, electron concentratio-,j, relaxation cur-M
:ABSTRACT: The kinetics of impurity pho'toconductivity in n-type silicon single
!crystals, irradiated by- 1 Mev electron beam,was studied.' The investigated kinetics!
:;were connected with electron transitions of E. a 0.16, 0.26,, 0.29, and.0.40 ev
icenters in the conduction zone* All measurements were made at 80K. In the analorsi~
!it is assumed that thermal exchange between the investigated levels and zones is
:negligible. The solution of the kinetic equation is then given in the form of
'A n.- XP(-
t
and
;-- - 1/2
Ccrd

typt-04
j:ACCESSION NRt AP4033646 A n, A n, exp 271,
,,where 4 nH - increase in electron concentration and 'r. growth constant. Typical
''relaxation curves are given for energy level E. - 0.16 ev, obtained by irradiating
!the specimen to increase the Fermi level slightly higher than the given center
;energy level Ece From those measurements electron capture crosa sectibns were
.determined for each level to an accuracy of 70%o Orig. art. hass 7 formulas and 2i
;figures.
:ASSOCIATION: Belorusskiy gosudarstvenny*y universitat ime V. I. Lanina,(Belorussiari
State University)
ENCL: 00;
SUMITTEDs 26Dac63
.SUB CODEs SS NO REF SCV: 004 OTHM:.' 000
2/2

ACCESSION NR: AP4039327
S/0250/64/008/004/0223/0225
AUTHORS: Tkachev, V. D.1 Sevchenko, A. N.; Lugakov, 11. P.
TITLE: Capture of minority current carrier in n-type silicon irradiated by fast
electrons
SOURCE: AN BSSR. Doklady*, v. 8, no- 4, 1964, 223-225
TOPTC TAGS: minority current cavrier, silicon single crystal, hole type, photo-
hole capture, adhesion center, infrared radiation
ABBSMICT: The process cf minority current carrier adhesion in n-type silicon
single ci-jstals has been studied under high speed electron beam radiation (I Mev).
The monocrystal was obt,,.ined by the method of vertical melt zone in vacuum, con-
6
L,aining aot more than 5 X AO oxygen atoms per 1 cm3 as well as by growing it in a
quartz tube containing -.31 oxygen atomie, per ca. Nonequilibrium carriers were
j
L
ij~!cze-_7 by means of li,;ht pulses. In the case of the quartz grown single crystal,
ho--,,--- .,;as noticel clearly at low temperatures (80K) under electron bombard-
innen ~. '2ai p.-.-.D t o conduct ivi ty of this crystal is represented graphically as
function of radiation time with an integrated electron current of 1.2 x 10
ale C,4 -,,/C--12 (see Fig. 1 on the Enclosure). The fieure shows that after switching
Card 113

ACCESSION WR: AP4039327
on the light the conductivity increases sharply because of the generation of
nonequilibrium carriers with time durations of the order of hole lifetimes in the
monocrystal. The nonlinear rise L L-12 may be explained by photo-hole capture
centers filled with electrons after switching on the light. The energy locations of
adhesion centers are determined from the photoconduc-.ivity changes connected with
infrared r&diation absorption. "The authors are deeply grateful to V. S. Vavilov
and A. F..Plotnikov for their many valuable remarks, and to A. G. Litvinko and M. T.
Lappo for'their help." Orig. art. hast 2 figures.
ASSOCIATIM Belorusskiy gosudarstvenny*y universitat im. V. L Lenina (Belorussian
State University)
SUBMITTED: 25Dec63
DATE Acq: o9jun64
ENCLs 01
SUB CODEs SS
Card
NO REF SOV: 001
OTHERt 003

.ACCESSION NR6 AP4034036 8/0020/64/15t/006/1345/1347!!
AUTHOR: Gurinovich, 1. F.; Gurinovich, Ge Pe; Saychooko, A, K.
(Academician)
-TITLE: The problem of the structure of the products of -the photo-
chemical reactions of porphyrins
:SOURCE: AN SSSR. Doklady*, v. 155, no. 6, 1964, 1345-1347
:TOPIC TAGS: porphyrins, porphine, tetraazaporphins, porphyrazLne,
.photochemical reaction, photoreduction, porphLne photoredu4tion,
photoreduced porphine structureq visible spectrum, IR spectrum,
,;porphine infrared spectrum
ABSTRACTt The study was intended as a step in the continuous effort
to clarify the structure of the photoreduction products of porphines
and,more-particularly, to'determine the location of the two hydrogen
atoms which are added.as a result of the reduction. The experiments
were carried out with tetraazaporphine (porphyrazine) in order to
.find out whether the azo atoms, which correspond to the methine
bridges of the porphine uolecule# are hydrogenated* If they are, an
Card I / 3

ACCESSION HR. AP4034036
,intense NIL-band would be expected to appear in the IR spectrum. -The
yhotoreduction of tetraazaporphine was completed in pyridine under
:,vacuum, using U2S, and in the presence of powdered KBr. Upon
~completion of the photoreduction, the solvent was vaporized in
vacuum and the reduced product was ready for IR investigation in
tPe pressed KBr tablet: 'this method prbvented oxidation and con-
tamination of the sample. The visible spectrum of the reduced
,product contained a strong new absorption maximum of 450 Pm.
:The maxima, characteristic for the initial productq vere largely
reduced. The action of air restored the initial spectrum, The
'changes in the IR spectrum gave reason, to believe that no NH-groups
.were formed. Moreover. the initial NH-bands of the groups located
,in the center of the molecule disappeared because of the assumed
shift in the conjugation system. The resuiLts indicate thats at
Jeast in the'case of tetraazaporphine, hydrogenation does not take
~place at the bridge atoms* The most likely,locatLon of the hydroge.
nation is assumed to be In the pyrrola rings* OrLge art* hast 2
figures.
2/3
c.,d

ACCESSION NR, AP4034036
'ASSOCI'ATION: lastitut fixikli Adademii nauk BSSR (Institute of
Yhyaica,Acodemy of Sciance5BOSR)
SUDHITTEDI 25Jsn64 DATE ACQs 20Msy64 ZNCW 00
!SUB CODKi CH NO REP SOVt 008 OTHZRt 002
card 3/3

ACCESSION NR* AP4035816 S/0020/64/156/001/0125/0127:
AUTHOR: Gurinovich, G. P.; Patsko, A* I.; Shul'ga, Ao K.; ~evchanko,
A. N. (Academician)
TITLE: Regeneration mechanism of photoreduced porphyrins
SOURCE: AN SSSR. Doklady*, v. 156, no. 1,, 1964, 125-127
TOPIC TAGS: photochemistry, photoreduction, prophyrins, chloropUYLLp
protoporphyrin, mesoporphyrin, tetraphenylporphinea tetraazaporphine,;
porphyrazine, triplet state
i ABSTRACT: This study explains the mechanism of the regeneration of
photoreduced porphyrins. Experiments were conducted with proto-
porphyrin, mesoporphyrin, tetraphenylporphine, and tetraaz&porphine
(porphyrazine) in 7:1 alcohol-pyridine solution; porphyrLn concen-
trations were in the range of 2-3010-2 mol/l; light was provided by,
a 500-watt motLon-picture bulb. The kinetics of photoreduction and i
photoregeneration were traced by the change in the intensity of
characteristic absorption bands. White light and light filtered
;Card 1/2

ACCESSION NR, AP4035816
through KS-18 (red) or SS-8 (blue) filters in correspondence with
the two main absorption peaks (745 a and 445 m for mesoporphyrin)
wereused. The results may indicate that the reactions studied take
place on the triplet levels of both the initial and the photoreducod
porphyrin. The triplet-triplet absorption spectra oi the substance
studied were actually o tained. Origo art. has: 2 figures.
ASSOCIATION: Institut fixiki, Akadamii nauk BSSR (Institute of
Physics, Academy of Sciences BSSR)
f SUBMITTEDs 02Jan64 DATE ACQ: 26M&y64 ENCL: 00
SUB CODEs C11 NO REF SOV: 007 OTHERt 002
Card 212

L L-0674-65 zwr (I /E7-r,*r (m) /----T (J /T Pc-4/Pi-44 Ij? (c LIT,
ACCESSION NR: AP5010044
AUTHORt Kuznetsova,
UR/0368165/002/002/0147/OL53
V. V.;,Sevchenko, A. N.; Khomenko, V. S.
TITLE: Physicochemical and luminescence properties of europLum and
terbium organic complexes
SOURCE: Zhurnal p;rikladnoy, spek-troskopi.i. v. 2. no. a. -1965, 147-153
TOPIC TAGS; rare earth chelate, europium chelate, terbium chelate,
luminescence property, laser application
ABSTRACT: Luminescence characteristics of europium and terbium:-
chelate compounds with benzoylacetone (BA), thenoyltrifluoracetone
(TTA), dipropionvlmethane (DPM), tribenzoylmethane (TBM), and ethylene-
diaminesalicylaldehyde (EDSA) have been studied because of the
widespread use of rare earth elements in quantum electronics. Hethoda
of preparing new chelate compounds were described. The composition
of the complexes was determined by chemical analysis and by comparing
the coefficients of molar extinction of a complex and free ligand.
Both methods gave an identical 1:3 ratio of the metal oxide to the
ligand in all complexes studied except that with EDSA, which gave a
card 1 3

L 40674-65
ACCESSION HR: APS010044
1:2 ratio. High quantum yields of luminescence of the most intense
spectral lines were found in all Eu and Tb chelates studted.in
crystalline or dissolved state at low temperature. The most interest-
ing properties for laser application were displayed by Eu and Tb
chelates in solutions. A series of empiric solutions were prepared
by mixing solvents or adding small amounts of activators (pyridine,
piperidine, dimethy1formamide, etc.) to enhance the quantun. yield
by excluding the possibility of partial dissociation of a complex or
distortion of the high symmetry of the i*ntramolecular field. Lumi-
nencence spectra, quantum yields of the moat intense lines, and
luminesence lifetimes were given for certain Eu and Tb chelates in
solution. In general, the spectral distribution of the emitted energy
is more uniform in Tb complexes than in Eu complexes. Therefore.,the_-
quantum yields of separate lines are significantly lower for Tb com-,
plexes, with few exception&. The highest quantum yield was found in
an Eu (BA + DBH) complex.in petroleum ether for a -6123 It line. The-
lifetimes T of the excited state ware found constant within a larger
temperature range in Zu then in Tb chelate compounds. This was I due
:!Car(t23

L hO674-65
ACCESSION XR: AP5010044
0' f
to a difference in the-luminescence quenching; pattern the.excited
rare-earch ion. Temperature dependence of the quantum yield..and of
x reflected deactivation energy changes in the* organic component of
the molecule and in the rare-earth ion, respectively. and therefore
do not follow the'same pattern. Most of the Eu complexes are still
luminescent at room temperature, while Tb complexes are luminescent
mainly at low temperature. Very great variacions in properties be-
tween individual compounds of the Eu and Tb chelate group must be
taken into account for their evaluation as potential laser mate-ials,
which was discussed in previous articles in -mos. 3 and 4, 1964, of
the same periodical. Orig. art. has: 5 figares and 4 tables. [JK1
ASSOCIATION:_ none
UB-COD
SUBMT-TTED::. l7ju164 00 0
EN L.
NO REP SOV: 010 OTHER.* .007 ATD PRESS: 3231,
Lord 3/3

UlnVg; MWUU5CV-LCU, E-4 A* j f to.; DeVCGeEM0 A. M kr%t.;UAA=U" LvA C24S I
ITLE, Inve5tigation of certain physical properties or condensation products of
o-dihydroxybenzene and formaldehyde-
-SOURCE- AN SSSR. Milady, v*, 16o, no. 5, 196,5,- 108~-4086:
~c
-TOPIC TAGS: organic 4emiconductor, semiconducting polymer, pyrocatechol formaldehyde.-.'~-..,,.,..-.,
sin,. electric
e al prdperty,- magnetic property
STRACT: A udy has4,'~een ma&e of the magnetic and-, lectricdl PF22trties of pyro
st
~catechol-formaldehyde ~esins%nd 'of the effect of heat - treat~ient on these proper-
es. The esi pared under various-'Conditicns.by cndensation to.the r- ~z
ns were!Bre esir,
Itage, forming insol*le, infusible, slow-burning, dark-bf6wn to black resins..
is
ork was done to study the effect of a methylene b
ridge, between benzene.*rings
the backbone, on the properties of the con rmers.q EPR spectroscopy (at
Jugated iol)
20-450C under nitrogen) and IR spectroscopy confirmed-that W po34mers were in fac
1conjugated systems. Control experiments showed that the polymers 'were paramagneti
C
in the ground, state. The lunpaired-spin concentration of the non-heat-treated olymejr,:
p
lincreased with the degree of cross~-linking, -and on- heat treatment it'inereased-to.a-.
maximum of 1020 at 350C- Electrical measurements (d.~fft.curret) using bloizk sp6cim6as
Crd

L 33239-65
ACCESSION NP: AP5007564
;howed that the te4erature dependence of conductivity obeyed an exponentiai-law~ he~',-'
t
-7
P : a. - 5- -R -_ j.0- 4 -- yA-j j
o n- d u- a ti Iii I t yVa s __ 261 c 1 oa 6d w0 cm.
ireat ~treatment cau"d a- conductivity rise, -starting-at: 200C when- cross-link
began; at above 7000 after cross-linking was complete, conductivity remained dMAefit.- 4,.1.-1"
This effect o~ heat treatment was attributed to the formation of d three-dimensionil
S~~ystem and to p4dial inones:
_,_qxi~dation to form semiou
conjj~~t
Off Otf OH 0
HO lft--(~-OHHi HO CH2 ),--oH
CH,
AHt CH 0
OH CHZ-/k\--OH
-CH, OH
OH Hr-...
CH
~H
J" . ... .
OH
61~ H
H
C 2 H~
Card
-2,13

"T, 33239-65
FACCESSION NR: AP5007564-
Orig.:art. has.,. 1 tabl6,-- 4,-figu-:r--Lb-, -cuid 1 . fdrmula-.-:.

ASSOCIATION: Belorusakiy gosudarstvennyy univeraltit-imi Vf - I i-Leranm (Belorussiarii'- -~
1 8tate Universilgr)

SUBMITTED, 1
nugA
ENCL: 00
SUB CODE! (;c oc
-

i NO REF SOV, 019 OTHER: 002 'ATD PRESS: -120T

eq
"A

w, zra
64310-65 -------
i ACUMS HR: AP5012763 UiVoc)2o/65/i6yoo6/1313/13v~~~,,~~--
AUTHOR: S h
e1Lc,_e IN~ (Academician AN BSISR); Golov'y
..Kachura,
iTITIE: Quasi-linear electronic spectra of tetrabenzoporphin
SOURCE: AN SSSR. Dokladyp v. 1610 no. 6, 1965P 1313-1316
~TOPIC TAM : absorption spectrum,, fluorescence spectrum, spectrum analysis, non-
metallic organic compound, electron transition
ABSTRACT: The authors investigate the quasi-linear absorption and fluorescence
spectra of tetrabenzoporpbdn, from which a whole series of benzoporphins is aeriF4d~..-,
The tetrabenzoporphin was dissolved in chlorobenzene and sn-11 quantities of it
were introduced into a Nrdrocarbon. The quasi:-~line-spectra were'zphotographed with
a glass spectrograph ISP-51 with long-foc-us UF-84 camera. The spectrum was anaiyzed
in detail and both differences and similarities of the rocm-temperature absorption
spectra of tetrabenzoporphin and the porplLyrins are discussed in detai.16 A table
is oresented of the frequencies of the normal o4cillations of tetrabenzoporphinj
based on the study of the quasi-line fluorescence and absorption spectra correspond-
ing to four electronic transitions. The results are compared with those obtained
by others. The causes of the peaks in the absorption band are explained. Some
Cad 1/2

L h198-66 E7dT(l.)/&1T(m)/EWP(j) IJP(c) RM
ACCESSION NR,:, AP5013440 UR/0020/65/162/001/05VO059
AUTHOR:
TITLE:
SOURCE:
;V;
Sevchenko, A. N. (Academician AN BSSR); Pikulik, L. G.; Kostko, M. Ya.
Duration of fluoresceme in coTpaex molecules
AN SSSR. Doklady, v. 162, no. 1, 1965, 57-59
luminescence,
yield
TOPIC TAGS: fluorescence spectrum,
quantum
ABSTRACT: The authors study the persistence of fluorescence in solutions as.a Specf..---.;,,--,
tral function of the frequency f the activating light including the anti-Stokes
Phthalimide derivatives and other organic
excitation region. compounds were used
as study specimens. Water, alcohols and dioxane were used as solvents. A fluoro-1
meter was used with a measurement range of,2.10-1210-7.sec. The other equipment 1
and the methods used in the experiment are described briefly. Special precautions
were taken to reduce stray light which might fall onto the photomultiplier. The
measurements were made at various concentrations depending on the intensity-of the
illumination. Since concentration quenching of fluorescence does not take place in'
phthalimides, a concentration close to saturation could be used where necessary.
Card 1/2

L h198-66
jACCESSION NR: AP5013440
It is found that the duration of luminescence is constant throughout the entire
Stokes region of the excitation spectrum. Since the duration of the excited state
is proportional to quantum yield for phthalimides and dyes under ordinary condi-
tions,these data confirm Vavilov's law on a constant quantum yield in the Stokes
f excitation region. A constant fluorescence duration was also observed in the anti-
Stokes excitation region which indicates that quantum yield is also constant in this
i region. A reduction in fluorescence duration was observed in the longer-wave Anti-.
Stokes excitation region which should be studied 'further in view of the sharp re-
duction in absorption in this region and the consequent attentuation of luminescence
which affects the reliability of measurements. In conclusion, the.authors are
deeply grateful to V. I. Shiro)JcovJor_paking.the control.measurements and for as-
----He- flu-�romb'tfiis-, and also to V. V. Zelins
~sistance in adjusting t
!hiqf furnishing
the phthalimides. Orig. art. has: 2 figures, 1 table.
ASSOCIATION: Institut fiziki Akademii nauk BSSR (Institute of Physics, Academy of
V
Sciences)BSSR)
SUBMITTED: 23Dec64 ENCL: 00.. SUB CODE: ',-QP1_ &C
!NO REF SOV 007 -OTHER. 004:,-_~~
Card 2/2

Ll
"

7 :8 r i
1 a n
41 349-13,55--,

tj,n~,, ~: ~~,N , " - ' "' --. , 'V.A.; SHKIFELAN, S.F.
. i .. - . . ., "., , r
ocolarl.7atInn c4' and it5 derivatives.
D6kl. AN SSSi 1`3 t(5.
(MI RA 18: 8)
1. In8titut fi~~i~:! bl"S'l,". 2, A,~! E~,)-SR (for Se-vchanko).

L
RM
ACCESSION NRI AP5020802,
UR/0O48/65/02,/W8A3?4M
AUTHORz. Strelkovap To I.;,Sevchenkot A.
TITLEt Comparative study of the effect of PH on the qpectr -
_Q_jumjMeaj3t pDapar ------
ties of PoEityrins*d-chlorines ffleport, 13th Conference on Luminescence hel
in Khar kov 'Z5 Ju-ne to 1 July 196V qV,
SOURCEt AN SSSR* Izvestiyao Seriya fizicheskaya, v, 29, no. 8,' 196~" 1374-1377
TOPIC TAGS-. absorption spectrum, solution property, solution acidity, chloro-
phyllp
ABSTRACT: The authors have investigated the effect of hydrogen ion concentration
on the absorption and luminescence spectra of porphyrdris and chlorines, These
materials were selected for investigation in part because of their Importance in
photosynthesis, Absorption spectra are presented graphically for porphyrin and
pheophytin-a in acidized ethyl alcohol, In alkaline soluti6ns porphyrin showed ..I
the four-band absorption spectrum of the neutral molecule; the two-band spectrum
of the doubly charged porphyrin ion appeared in acid solutions, There was an
isobestic point whichl, howeverj, did not persist in the most acid solutions. The
refractive index of the solvent varied considerably with PH* It is concluded
Card

LO1256-66
ACCESSION NR: AP5020802
that reducing the pH leads to formation of the doubly charged porphrin ions and
that the life-time of the singly 'charged ion is too short to allow its detection
in the absorption spectrum* Similar results were obtained with other porphyrinst
octaethylporphrin, dimethyl ether mesoporphyrin IXj dimethyl ether protoporphyrini
IX9 and tetraphenylporphyrino In the pheophytin solutions it was possible to de-.!,
tect both singly and doubly charged cations and to determine thep,.-gativi! loga-
rithm of the equilibrium constant (PK) for them;.for the doubly charged ion
pK = 0*76, and for the singly charged ion pK = 1,,75* With decreasing pH the lo
ng
wavelength absorption band first shifted toward the shorter wavelengths and with
further decrease of the pH it began to shift back# The two absorption bands in
the green disappeared at low pH and the absorption spectrum became very similar
b to that of chlorophylo In dioxanes both chlorine and pheophytin had two isobes-
tic points in all values of-the pHs Origs arts hass 2 figures*
ASSOCIATICNi. none

GURINOVICH, I.F.; GURINOVICH, G.P.; SEVCHENKO, A.N., akademik; TAUGER, S.M.
S'ructure of products of the photooxidation reaction of
porphyrins. Dokl. AN SSSR 164 no.1:201-204 S 165. (MIRA 18.9)
1. Institut fiziki AN BSSR. 2. All BSSR (for Sevchenko).

L 9876-66 EriT (i)/Evtr (m)/Ir ijp(c)
ACC FN7 Ar5027349 SOURCE CID&: UR/0250/65/009/010/061-.7/0650
AUTHOR: Gladchenko, L. F.; Kostko, if. :Ya.'? rikulik, L. G.; Sevchenkoe A. 24t-
016: IFAN8
0.0t: Institute of FhYs1cs M! DSSR 1~stitut fiziki AN BSSR)
TITLE: Duration of state of ultraviolat fluorescence of aromatic
Abe excite'
acids - ~fl
SOURCE: All BSSR. Doklady, v. 9, no. 10, 1965, 640-650
TOPIC TAGS; aromatization, amino -ici,19 fluorescence
ABSTRACT: Direct measuremnnts of thp luration of fluorescence of indolet trypto-
phan, glycyltryptophan, tyrosine, ani onnylalanine w9re carrioA out by using a
phase fluorimete) of the Institute of Physics AN BSSR. The optical part of the
_,e of the
apparatus was a4apted for measurements of.r in the ultraviolet ranz
spectrum. Distilled H20 and high purity EtOH ;qra used as solvents. Known
act).-
formulas wire used for calculation of the actual duration of fluorescence Or
1/2

L9876-66
ACC NR: AF5027349
Control measurements of previously known T were In good agreement (accurac
y
10%) with the values givon in the lit;!rature. The optical characteristics
Io acidaftested are given. Origart. hass I table.
termined for the am n
SUB CODE. 07/ SUBM DATE: 22MAY65/ NR REF SOV: 002/ OMER: 000
2/2

0 A,N.; TKACHEV, V.D,,; IIJGAKOV, P.F.
EVCHENKO I
S
Bipolar mechanism underlying the excitation of impurity photo-
conductivity. Dokl. AN BSSH 9 no.12:801-803 D 165.
(MIRA 19:1)
1. Belor-usskiy gosudarstvennyy universitet imeni Lenina.

L b0352-66 /EL;,-'( t )/'---,FT TJF(C)
ACC NRx AP6019223 SOURCCI CODE: UR/0250/66/010/002/0080/0082
7,6
AUTHOR: Sevchenko, A. N.; Tkachev, V.. D, IJ
-9
ORG: Belorussian State.University im, V. 1. Lenin (Belorusskiy gosudarstvennyy univi
sitet)
TITLE: Photoconductivity Spectra of p-type silicon.irradiated with fast electrons
SOURCE: AN BSSR. Doklady, v. 10, no. 2, 1966, 80-82
TOPIC TAGS: photoconductivity, silicon, irmurity center, irradiation effect, irradia-
tion damage, Fermi level
ABST1kCT: The object of the work was to study tbp kinetics of formation and stability
of radiation damage in p-type ailicon irradiated-kTith 1 MeV electrons at 25-300C and
0 ___Tc
inte ral doses of 1013-1018 electrons -m--'_._The-change in the shape of the spectra of
'I.Ou
L
,- rity photoconductivity was studied as a function of the irradiation dose. The ef-
fectiveness of the formation of radiation damage was found to depend on the impurity
composition of the crystals. The shape of the spectrum of the p6toconductiviiy signa:
depends on the position of the Fermi ievel in the forbidden zone, E~r raising or lcrder-
Ing the Fermi level, one can eliminate certain centers from the photoconductivity pro-
cesses, which confirms the authors' earlier hypothesis that the structure of the Spec-
tra is related to volume defects, since the eh ange in the position of the Fermi level
reflects the conditions in the volume of the crystal, -1h9 observed change in the spec.
Card

1, h0352-66
ACC NR: AP6019223
tra following the cessation of irradiation is attributed not only to different stabil-
ities of the radiation defectsf but also to the occurrence of redistribution of point
radiation defects among the varxious impurity atoms. In conclusion, the authors e)~pres
their sincere appreciation to V. S. Va~iloy for discussing the work and his many useft
comments. Orig. art. has: 2 figures.
SUB CODE: 20/ SUBN DATE: 14Jun65/ ORIG REF: 005
14- J/
Card

-6 EY1T(M)/EWP(t)/ETI IJP(C) - JD
1_27L69 6
ACC N1- AP6011529 SOURCE CODE: UR/0250/6.6/010/003/0148/ol5O-,-,
AUTHORS: Sevchenko. A. N. T~achev, V. Dj
Yukbne vic*h-,.-7F. V;
ORG: Belorussian State University im. V. I. Lenin Belorusskiy
gosudarstvennyy universitet)
TITLE: Investigation of the influence of beat treatment on the photo-
pl~ electric properties of silicon with radiation damaizes in its structure
SOURCE: AN BSSR. Doklady, v. 1966, 148-150
90, no . 3,
OPIC TAGS: silicon, single crystal, crystal structure, radiation
damage, photoelectric property, beat effect, photoconductivity, fine
structure, crystal defect
ABSTRACT: The purpose of the Investigation was to study the temperature
stability of different radiation damages which are produced in single
crystal silicon when irradiated with energy particles. The initial
material was p-type silicon vilth resistivity 7 -- 10 obm-cm; containing
3 -- 8 x lol7 cm-3 oxygen. The Irradiation was with 1-Mev electrons.from,-
an electrostatic generator at 80K and 30C. The spectral dependence of
the stationary photoconductivity was plotted with apparatus described by
Card 1/2,

WR.
L 27360-66
ACC NRs AP6011529
.A. F. Plotnikov et al. (PTE, no. 3, 183, 1962). The results showthat
samples whose photoconductivity spectrum displayed no structure shortly
ifter the cessation of the irradiation, acquired a pronounced structure.
ifter prolonged storage at liquid-nitrogen temperature. This is attrib-
ited to diffusion of the vacancy pairs resulting from the electron bom-
)ardment. An increase in the temperature and longer storage following
'-Obe bombardment causes the point defects due to the bombardment to become..-
innealed. The results are interpreted andreconciled with the level
3cheme of the defects.: A quantitative interpretation of the phenomenon..
La made difficult by the presence of different types of.structure defects':~_
ahich can become transformed into each other during annealing.- Orig.
irt. has: .2 figures.
SUB CODE: 20/ SUBM DATE: -14Jun65/ ORIG REF: 004/
I Card 2/2

420,0-66 _7,TT(m)/T/9~ELt)/ZI JJKOJD~
r-ACC-M-AP6029648 SOURCE CODE: UR/0250/66/010/&08j6550/055
AUTHOR: Sevchenko, A. N.; Tkachev. V. Urenev. V, 1.
ORG: Belorussian State University im. V. I. LanIn.(Belorusskiy
ggsddaretvennyy univer-sitet)
TITLE: Photoconductivity spectra of germanium single crystals Irradi-
ated with gamma-quanta
SOURCE: AN BSSR. Doklady, v. 10, no. 8, 1966, 550-552
TOPIC TAGS: germanium single crystalg gamma irradiation, electron
energy level, impurity level
ABSTRACT: An investigation was made of the system of energy levels
which appear2 in n-type and p-type germanium irradiated with gamma--/7.
quanta from C060 at room.temperature. Particular attention was given'to
a study ot the stable centers which introduce deep energy levels into
the forbidden zone. Photoconductivity spectra were taken in a range
from I to 5 p for temperatures from 300 to SOK before and after irradi--
ation with integrated fluxes of 1014-5 x 1017 kv/CM2. The specimens
used were n- and p-type germanium single crystals with initial specific
resistances of 48 ohm-cm and 6 ohm-cm, respectively. The concentration
of residual impurities in the electrically active state.for n-typs
Card 12

L 42097-66
fA NR- AP6029648
terial was up to 1012--1013 CM-3. Investigation of the electrical
ma
-er -ch-Vae"th presetii:e of
characteristics of specimens aft irra*VWtiaw b
Ev + 0,01 ev, Ev + 0.008 ev, and Ev + 0.17 ev levels in p-type ger-
manium and Ec - 0.20 ev Level in n-type ermanium. Irradiation of
n-type crystals with doses up to 5 x 1011 kv/cm2 did not change the
conductivity sign. At T - 80K the Fermi level in irradiated n-type Z
specimens was located 0.16-0.22 ev from the bottom of the 'conduct iv
zone, while In p-type specimens it was found 0.20-0.26 ev from the top
of the valence zone. The presence of deep centers in both irradiated
and nonirradisted crystals indicates that these centers are not ged-
arated due to the irradiation but are only disp,j;!y_q-d.--as thq-_gej.*u1t of
it. The transition of electrons between the iodits-and these-centers
7
In Irradiated crystals can lead to a significatit.cu in--ZHk--atbiicen__*
tration of free carriers. hge in~ cinediiihli-
Such a cha
since after irradiation the equilibra"ted concentration-:crf,-fr.-a -.Carriers--.-,
;; "'46 -
becomes very low as a result of their tapture, by. the _ig4l* ow smage-;"
which introduces shallower energy levels. -Therefor& _In-irrviti4red
specimens for which the ratio Ao/o is greater, L-t Is ifass 0: -to detect-
deep energy levels which belong to residual imperfectif6-'U" th F 2 t a-11tIA
njr~j er!
lattice. Orig. art. hast 1 figure. WA)
R-In
SUB CODE: 20/ SUM DATEt l5Apr66/ ORIG REF1 002t, 0
ATD PRESSs Z-vq
Card 2 / 2 af

T I I
~!~ft M I-:W T -1
ACC NR: AP6021921 -SOURCE-CODE- -UR/0250-/66/010/006/0374/0376
AU'MOR: Sevc~enko,-A. N.; Stel'makh, V. F.; Tkachev, V. D.
ORG: Belorussian State University Im. V. I. Lenin (Beloru'askiy gosudarstvennyy
universitet)
rITLE: 11hoLoclectric properties of galliu arsenide containing structure defects due
I to radiation
buuKuz: MN BSSR. Doklady, v. 10, no. 6, 374-376
TOPIC TAGS: gallium arsenidei radiation effect, photoresistance, photoconductivity,
resistivity , photoelectric'property, fast neutron, neutron irradiation
ABSTRACT: The energy spectrum of local levels in n- and p-type gallium arsenide
,.Single crystals irradiated with fast neutronslas investigated by studying the
structure of photoconductivity spectra beyoii-dthe absorption edge. Spectral de-
pendencies of pho*tocondu.ctivity were recorded at temperatures of 300 and 80K using
samples with a resistivity up to 1012 ohm. The specific,resistivity of the irradiated
sanVes was found to depend markedly on the density of neutron beams: at fluxes of
101 neutrons/cM2 the resistivity increased slowly; at higher densities it increased
i rapidly, showing a tendency toward saturation at 1()17 neutrons/CM2. It was concluded
1 that the irradiation of gallium arsenide produces a great number of stable combina-
I tions of point defects and residual chemical impurities. Orig. art. has: 2 figures.
SUB CODE, .20/ DATE: 09Mar66/ ORIG REP: 002/. 0TH REF: 002/ ATD PRESS:'6-,~._O ZLJ
rd 1/13,--)
L_C_-

.L o4642-67
ACC NR: AP602441o
tetravenzoporphin, zinc-tetrabenzoporphin, riagnesium-phthalocyanide, zinc-
pInthalocyanide, and phthalocyanine, together with the frequencies of the resolved
lines and their relative irrLensities, are given. The comparison of the metal-
derivative spectra with the spectra of the free bases leads to the conclusion that
the generAl character of the vibrational structure does not noticeably change upon
introduction of the metal, and that most frequencies.can be compared for both types
of compounds, tetravenzoporphin and phthalocyanine, with the exception of the most
active frequencies. The changes of the corresponding vibrations in the series free
base - magnesium - zinc are analogous for both the te-.,rabenzoporphin and phthalo-
cyanine, showing a similar influence of the m4tal atoza on the dynamics of the'
molecule in both cases. The authors thank t. F. Kachura for preparing the investi-
Sated compounds. Orig-art. has: 2 figures and 2 tables.
SUB CODE:' 20/ suBm DATE: 24Feb66/ ORIG REF: OOV OTH REF: 002
awm
CrL 2/2

ACC NR: SOURCE C-6~i--*
AP6033157 u~/66/610/009/0642/0643.'
AUTHOR: Sevchenko A N. (Academician AN BSSR); Lomako., V. M.; Tkachev, V. D.
ORG: Belorussian State University im. V. I. Lenin (~elorusskiy gosudarstyenrWy uni-
versitet)
TITIS: Temperature and optical quenching of radiative recoi6ination of gallium ar-
senide
SOURCE: AN 13SSR. Doklady, v. 10, no. 9, 1966, 641-643
TOPIC TAGS: gallium arsenide, luminescence quenching., radiative recombination, tem-
perature dependence, absorption band, Raman spectrum
ABSTRACT: The purpose of the investigation was to determine the influence of temper-
ature on the spectral distribution of the radiative recombination of electrolumines-
cent diodes obtained from ri-type GaAs by diffusion of beryllium, and the influence of
constant external illumination in the intrinsic absorption band (% < 0.83 nm) on the--
intensity of the recombination band. The carrier density in the iritial GaAs was
8X 1017 - 6 x lo'8 CM73. The optical resonators were made from the crystal by
cleavage. The Raman spectra were investigated with apparatus based on the 3m-.;22
spectrometer. The radiation receiver was a germanium photodiode or a cooled PbS
photoresistance. The constant illumination was with the aid of an incandescent lamp
and a number of filters* Me tests were made at temperatures 80 - 30K in a cryostat
evacuated to 10-1 mm Eg. Me radiative recombination without additional illumination
Card 1/2

1. nohW-67 ~:Vf IJP(c) _ JD
XC `~' Ai 6027951
_~ 1. SOURCE COD2: UR/0020AGAG9/003/o%~/Wli
Aupholl: "3cvchcnko, A. N. (Academician Ali BSSR); Tkache-r, V. D. ; Lugakov, P. F. I/
MG: Belorussian State University im. V. I. Lenin (BelorussRiy goGudarstvennyy
iTITLE: Encr8y spectrum of radiation damage in silicon single crystals
SOURCE: Ali SSSR. Doklady, v. 169, no. 3, 1966, 562-564
TOPIC TAGS: silicon semiconductor, semiconductor band structure, crystal lattice
defect, irradiation damage, impurity level
;OSTRACT: The purpose of -the investigation was to determine the enerU levels thn't
appear when the crystal is irradiated with different integral fluxes of 1-14ev clec-
(1013
trons - 1018 el/CM2), f st reactor neutrons (1012
60 (1015 la - 1019 neut/cm2), and y quanta
from Co - 1019 qu/cm2). The initial n- and p-type crystals had a resistivity
0.03 -- 150 ohm-cm. and a low concentration of impurities capable of producing deep
levels in the forbidden band. The investigation consisted of measuring the tempera-
ture dependence of the coriductivity and of the Hall coefficient, and the spectral dis-
tribution of the photoconductivity signal. The electrical measurements identified the
principal donor and acceptor centers, while the photoelectric measurements identified
the levels due to point defects and some of the chemical impurities. The results
Card 1/2 UDC: 537-312.5

NRI AP6034214 SOURCE CODE: UR/0368/66/005/004/0480/04&5
~0~nko, A. H.; Khomenko, V. S.
AUT11OR: Kuznetsovar Ve V.;_~e
ORG: none
TITLE:. -Analysis of the eruopium chelates composition in solutions by means of
luminescence spectra
SOURCE: Zhurnal prikladnoy spektroakopli, v. 5, no. 4, 1966, 480-485
TOPIC TAGS: 'orginoeuropium compound, chelate compound, ion,concentration, stability
-.constant, luminescence spectrum., ~cv,4ar-wrn ed"Iflof"110
ABSTRACT: The luminescence property of the Eu(DBH)j, Eu(TTA)31 Eu(BA)3, Eu(DBM), *HP,
and Eu(BA)4,HP chilate: solutions in ethanol has been studied at different stages of
dissociation of the complexes to determine the composition of the complex molecule
4n solution, the concentration of admixture of partially dissociated molecules, and
4he instability constants of various chelate forms. 'The concentration of admixture
,nd'instability constant data are important for evaluation of the stimulated emi sic
a
q9pability of the rare earth chelates. The admixture content is directly related to
fhe-loss in pumping energy in lasers. Dissociation of the compfexes was achieved
~y*additions of'sinhydrove HC1; luminescence spectra Eu3+ in solutions were recorded
at different pH valueti. Three complex formst Eu(B&) 9 Eu(BA)+, and Eu(B.N)7+ were
detected in solutions of Eu(BA)3 at Ph in the 9.2-3.8 range. 2A four-liga.~d complex
.Card-- IjZ__ - . . _.-MCL-535,07

AP6034214
SOURCE CODE.:
UR/0368/66/005/004/0480/0485
AUTHOR., Kuznetsova, V. V.; Sevchenko, A. N.; Khomenko, V. S.
ORG: none
TITLE; Analysis of the eruopium chelateskompositian in solutions by means of
luminescence spectra 1~
SOURCE* Zhurnal prikladnoy'spektroakopii, v. 5, no. 4, 1966, 480-485
TOPIC TAGS: organoeuropium compound, chelate compound, ion concentration, stabiliiy
~Cvnopfom
constant, luminescence spectrum, ,
ABSTRACT: The luminescence property of the Eu(DBM)3, EU(TTA)31 Eu(BA)3, Eu(DBM)4-ap'
and Eu(BA)t,-HP chelate solutions in ethanol has been studied at different stages of
dissociation of the complexes to determine the composition of the complex molecule
In solution, the concentration of admixture of partially dissociated molecules, and
:.ihe instability constants of various chelate forms. The concentration of admixture
f!~d instability constant data are important for evaluation of the stimulated emissic
q9pability of the rare earth chelates. The admixture content is directly related to
the loss in pumping energy in lasers. Dissociation of the compfexes was achieved
by additions of anhydrous HM; luminescence spectra Eu3+ in solutions were recorded
at different pH values. 7hree complex forms: Eu(BA) Eu(BA)+, and Eu(BA)2+ were
detected in solutions of Eu(BA)3 at Ph in the 9.2--3.8 range . 2A four-ligand complex-,
I_Card,_._ 1/~__ ---U1)C+.---5 35+ 3 7
AI
Lous

ACC NRj AP70075 11 SOURCE CODE-- - --UR /0250 /6 -(/Oil /001 [0013 /-09 2.5
AUTHOR Sevchenko. A. if. (Academician Ali BSSH) ; Tkcchev, V. D.
Lugakov,
ORG: Belorussian State University in. V. I. Lenin (Belorusakiy
jbosudarstvennyy universitet)
!TITLE: Electric and -photoelectric Dropprties of p-type silicon single
crystals irradiated with fast neutrons
SOURCE: AN BSSR. Doklady, v. 11, no. 1, 1967, 13-15
)TOPIC TAGS: neutron irradiation, silicon sinple crystal, crystal
property.,
:ABSTRACT: An investigation was made of the electric and photoelectric
:properties of silicon D-type single crystals irradi.ated with fast neu-
trons. The investigated crystals contained about 1018 oxy(ren atoms perk
.cubic centimeter. Initial resistivity was 1 and 30 ohm-cn for lower-
and higher-purity CT.'.rstals respectively. The specinens were irrhdiated
in a reactor with various fast neutron fluxes (1 x 1013- 5 x 1018
neutrons/cm2). The electrical conductivity was measured before and
after irradiation, an.d the photoconductivity spectra were taken at room
and nitrogen temperatures. It is shown that.the increase o" integral
Card--- UDC: none

L 1)1Zk(M')Z5WPW ii
- EWT
A
M; NRt 6013896 6/126971272
Rt SOURCE COM: UR/0620/66/167/00
47
AUTHOR: Gurinovich, G. P.; LWuglik, Ye. K. Sey-chenko& A. N (Academician AN BSSR)
ORG: Belorussian State University Im. V. 1. Lenin (Belorusakiy gosudarstvennyy uni-
versitet)
TITLE% Quantum fluorescence yield of solutions of polyatomic molecules during low-
wave excitation
SOURCE: AN SSSR. Doklady, v. 167, no. 6, 1966, 1269-1272
TOPIC TAGS: quantum yield, fluorescence, spectral absorptivity
GT%v-Lj tjXo4o&~&
ABSTRACT: This paper a -report an experimental studies to determine the reasons for
the reduction in quantum diation yield-of polyatomitsolutions in the anti-Stokes
region. Special measures were taken to assure that the specimens.were pure, as well
as to eliminate association, ionization, etc., i. e. attention was given to-all causes
known to result in several types of absorption centers in the solution. These mea-
sures resulted in several cases of quantum fluorescence yield which were independent
of the excitation wavelength.. The specimens were illuminated by light from a mercury
(SVDSh-500) or xenon MSSh-1000) tube passed through a quartz monochromator. The
luminescence was recorded by an STsV-4 photocell. Curves are given showing the ab-
sorption, excitation and luminescence spectra and quantum yield for solutions of
Card 1/2 ~UDC*. 535.371
uxz'

�R
-t cLil
Vm;j, L
V. A- Fi- I.-
C-A. 51, dxmf. Ni 1~.

U
;j
MrNOT'Ko,
24(7) 3 PHASE I BOOK EXPLOITATION SOV/1365
L-voy. Univerartet
ftte~ialy X Vaeocyurnogo movashchanlya, po spektrodkoott. t- It
golakulyar.Wa spakt;-~~,Wknply& (Papers of the 10th All-VUQn
Conference on Spootr7acopy. Vol. It MoleoulLr Spectroscopy)
[Llvov) lid-vo L-vovakogo unVi-ta, 195T k99 p. k O~ copies
printed. (Seriest Itsi Fiz7chnyy zb1;z7i' IV.
Addltion.Ll Sponsoring Agjua7: Akaiemlya nauk MR. Komisslya p0
spektz-oakopll. Ed.: uzer, S.L.j Tech. EA.: SarAnyuk, T.V.j
Edito.-lal Boardi LA.Anterg, O.S., Academician (Ra3p. Ed., Deceased),
Neporunt, B.S., Doctor or Physical " Mathcmatical sciences,
Inskly, I.L., Doctor of Physical and Mathematical Soleness,
Fabel.
Fahrilacets V.A., Doctor of Physical and Mathematical Scianceso
KcrnxtskUs V.O., Candidate or Tsc%a!c&I Sciences, Rayakly, S.M.#
Canditato of P2-4!aIos3L an4 Mathematical Sciences, Jalzovakly, L.K.,
Candidate or Fhyallcal and Mathematical Sciences, Mlliyanchuk, V.S.,
CvWidats of Phjsij4i &:W Mathematical Sciences and Olaubermon,
A. Ye., Candidate of Physical and Mathematical Liences.
Care 1/30
Vollkenobt,,yn, M.V., and O-B- PtItzYn. Behavior of
HYdrO6411A Bonds During Vitrification
43T
Laza=', A.M. Vibratiowa Spectra or orthoajuailic
kold Sut*rB and Their Relation to sillast& Spectre
Latkova, X.N., V.V. obukhoy-renigov, M.N. Sobolev,
&W VP# Chereadainoir. Ram" Spectrum or Vitreous
Uric AnhjtLrIde 445
SIdOrov T.A and N Y. Sobolav. Infrared Spectra
and the S;;ucturd'or Phosphorous, Phosphoric, &.d
Boric Aithydridsa 448
BObOv'10h, I*&- S-. AM T.P. Tulub. Raftan zpqatra or
Ocublo-complex Silicate Olga"a 455
B"OhenkO K-A--ArA V.A. noriaskaya. Reflection
Spectra or various Modifications
of '"110a " the W" La"th 141P 'I'm T to 24
Morons

~$ETCHKNKO, N.A.
Infrared spectra of tridymite, colored quartz, jasper, and opal
in the 7, 5-24 micron wave-length [with sum ry in Nnglish]. Inzh.-
fiz..zhur. 1 no.8:8"4 Ag 158. (MIRA 11:8)
(Spectrum, Infrared) (Silicates--Spectra)

)1--4 -2-kD/ Z~
AU.TL!Oz~S. Sevellcem"co, IT. A. and Flo ri-:--. s_'zaya, V. A.
TITLE: Infrar&d Transmission Spectra of Porodr3 and
_L L L, I
Glasses. n _- L~ ra'1 : r a ss n yy e e ry p r o p u s ~k, i: i i y a i- 7 1 --h
kva!&idny1ch stekol.
aptil:J' i Spei'l-t- rGSI:Oplya, 19~511) , Vol . IV , 21 1L;(~~1-195
(U!Q~' sl~)
ja_-s ,~iUh acid-- -al-a-ost all of 1-ia
0
On ta~eatment of ;
L
2
out . The rer ini--l-,
and L.,_,,3st of B 0 are d, is --olvot~'
_
2 3 ~D
-lass containis a hiL;1-i j)_-vopoi`c;ion of ssilicon, and ac
L;
T
V,2ry ~IJOrOIUS,. atin o-f Lhiz3 )orous ;Iasc , _/~'0-900
r,_-i_iov1z-s por~~.si` ;y -,=duces quaru'--like .-Lnizc, S-L-ilar
in t' a f'%_sef~ culartz. The ply-a-s--it
r;~,ports rcsiullk;s of infra-red transzLi.:csion
of 1)orouc a-_rjJ_ ((jul-rtzzoid) --lans-ses. T h --L- e
-oorour, and thrae (..!.n_I'Lzoic1 -,'laosi-as v:ere s 2u- u 0 i_e- d thG7

v;ere f-oi. tLe followinc,
borosil
70

-la- s e s. in. -olecu-.lar 0 .6-0- a n'-
1c) :'a, I

60 Sio
'2G, 23 an~ 0 SiO (3) I:z 17a 0
2; 203 2 , -
k~a r d 1 /4 :z
'
20 3,0 75 Sio or bri.-fness the Bias
_
2

In frared. 2 o 1" Porous ancl j.1 a rtz-like G1-3.c
coiAposition-- will be denoted by: 10130, 7/2.5 5/20.
One LjjatUr(;ato:1 10/-0 sodiui:.-borosilicatr-% jlass, ~-n
Of `U110 ;7,YSt(-,'r- '-PJ-O IS, i 0 cont-ainin- frori
r-1 2 U
welr~? also studied. Porour,
0-5-75 of 'A02
Glasses -;icre obtained by tureaturxnt with hydrochloric
acid at 50oO., The samples were either -thin layers of
poviders on EM plates or thin fil-rals. Lle-asurements
were nade u---J1-nG 1LB-11 and Beel----ann IR-2 Spectromieters.
Atu 1-15 ~L a TTaO1 and at 15-24- ~L a 1:3r pris-T.~ we ree
used. F if.-.
0 1. shovis transL'ission spe-tra of scdiur--
borosilica-Le 10/50 L;Iass. Curves I and II represont
powdea~s of tr-ansparent and opalescent Glass. LJ-De,~,tr=
~r- Ul
of a fil-L-, ol' thc~ sa~ - - ass is Given by cui-vo III.
2iL;.,2-- chows of powders of po-rous glassess
10/70, 7/"3, 5/20 mf~,AL quartuzoids obtained froLi them
($1j:Lrves II, IV, VI and 1, 111) V respectively). Fi~,,3
shu~,:s z;pe~Ara of' poi-iders of cjuai:tuzoid (curve 1) and
x
porous (curve 11) 7/23 classes. FiSs. 2 and 3 shov..,
'hat J-n all 11
G porous ~;lasses and quartzoids very stro-nG
bands at C., and 21-22 p are observed, as ~;ell aS i:,edilmm-
I.Jard 214 int,~;nssity bands at 7.2, 12-5 and 10-06 ~L. I n a 1d i i o a

51--4 -2-8/28
Infrared Transmission Spectra of Porous and Quartz-like Glasses.
to these bands porous glasses exhibit also weak bands
at 3 and 6.2 tL. The 9, 12.5 and 21-22 p bands are due
to silicon in porous glasses. The 10.8 ~L band was also
observed in amorphous silicic acid spectura; it is due
to vibrations of Si-O-H groups. The latter conclusion
asrees with Zhdanov's results (Ref-5) and those reported
in Refs.6-8. Fig.4 shows transmission spectra of
B203-Sio 2 glasses in the form of films containing 0.5 to
75% Si02* In all these glasses two bands are observed:
at 9 and 7-8 ~t. The 9 ~L band coincides with the founda-
mental band of free silicon (Ref-3): the 7.2 p band is
due to boron. T, _e aut'-_,ors than'.,-- Ac-adenician A.A. Lebedev
and G.A. Vlasov for their help and advice. They also
thank O.S. hiolchanova, S.E. Kras-,'-r,v ~.nd G.A. Kolykov for
-supplying the glasses and assistance in the work. There
are 4 figures, 10 references of which 9 are Soviet and 1
En f~l i sh -
~LSSWIitTIOU: State Optical Institute imeni S.I. Vavilov.
Card 3/4 (Gos. opticheskiy institut im'. S.I. Vavilova.)

51- 4. -2,01/28
Infrared Transmission S'Pectra of Porous and Quartz like Glasses.
SUBi,iITTED: April 9, 19,r--,? -
1. Porous glass-Infrared spectra 2. Glass-Infrared spectra
3. Infrared spectrum analyzers
Ca rd L~IL[

0)-_~'. :r la orin skaya 51- 4
_;Ie vch en 1 o and V. A.
d- U L
~_,I ection Spectra of Crystalline Caiartz Plates, Cut
i
at V_nrious An~_,les wituh Respec'u- to the Optical AT-is,
in the 7-24 ~L ~iavelenE~bh Region. (Spektry oti-azheniya
plastinok kristalliches'.rogo kvartsa, vyrezanny1di
pod razliclmyni uglami otnositellno opticheskoy osi,
v oblasti dlin voln 7-2L~ ~L.)'
Optika i Spektroskopiya, 1958, Vol.IV, Nr.2, pp.261-261L
6A
The Dr,~~sent paper reports on the reflection spectra of
plane-parallel disks (1.5-1-1-j1 thick) of0crystalline
a-qua3,tz, cut at 0, 20, 45, 70, 80, 90 to the optical
ax-is, in the 7-24 ~L region. Reflection was measured
on an II~S-11 spectrometer usinE; rock-salt and potassiuLl
bromide -orisms. A vacuurL thermoelement with a Kozyrev
aiL,plifier was used as -the receiver. Measurements were
made in non-polarized light at an anGle of inciaei_~ce close
Uo 250. Reylection from samples was compared with
j~eflection at an alwadnium mirror. Scattered liL~it
was r-uoved t3
3 by Lvans of thick plates of glass, and LiF
C'a r d 1 placed in the li-2At beam. Fir-s.1 and 2 shov, the
0

151--t, -2-19/28
Reflection Spectra of Crystalline Quartz Plates, Cut at Various
LD - ptical Axis, in the ?-211 ~L "lave lP_n[,;Uh
An-lvs .-,ith 2es-pect to the 0 U to
Le -ion.
reflecticn curves in tile reCions ?.5-16 and 17.5-24 ~L
rusp~; ct ive ly. In a table on p.264 the viavelanGtlis of
the reflection are j~ivon for all the samples
~ lied. A fundai._-ental banid, which is a doublet %vith
cuu.~ U
at 3.,50 and 3.95 ~L, -vias found -to have practically
t-lic sa-a position and intensity in all the crystals
~_tudied. Tha position of a second :Danda-riental band
at 12-13 ~L (also a doablet) is the same for all cuts
but i's intensity varies considerably from sample to
U
(charactuo:,_~_istic of
.~Luple Another band at JL~-53 ~L
~he quartz lattice) is found to have the same position
in all curves of Fig.1 but its intensity varies irith
va.riation of the crystal cut. The an-le of cut has -
CD
uh,~: ~;z,~-;a-lj-est effect on long~-viavelength bands at 18-19.5
and 19.5--24 ~t. The latter two bands change both 'their
position a--ad intensity viit-h variation of the an-le of
c,at of quartz crystals. The authors thank A.A. lebedev
_.:~ A.G. Vlasov for advice --nd help. There are 2
'Aa-za:-d' 2,1`5 fi:: res, 1 table and 6 references, of i%Lhich I is Soviet,

51-.4'-2-19/28
.Lul 1~'CU-30121 o,-,)ectra of IL-.'ryst al line quartz Plates,
Cut at', Various
-A,n-les -,LeL;-)ect -'U-o the Optical Axis, in the 7-24 P Wavelen-dh
i Oil
1 aalriara, 2 German and 2 Am-erican.
'0C-I 16 i U -
-~: 3tate Optical Institute imeni S.I. Vavilov.
(Gos. o,,Y~ichaskiy institut im. S.I. Vavilova.)
17-~a-y 10, 1957.
1. Quartz ar7stals-Reflection spectra-Measurement 2. Spectrometers-
Applications

AUTHO.~S: Z;ovchanko, ai-,d Florlns~caya, V.A. SOVAI-57-1-4/1p,
TITLE: Mo Spa,~tra of juartz Glass ~n the RaCion 2-24
(Spektry propaskariya k-I-art3e7ogc stekla v, ~blasti _9-24=r)
112-UODICAL: Optilca i SpGictroskopiya, 1958, Vol 5., 11r l.. pp 23-28 (USSR)
ABS C T In tho staly of structiri of .ritrecras ~Alica ths infrared Fpoctra rf
silica viara raeasured Ain the prcz-~iE of transitiur. Cf the latter from
its crystalline to glassy state.. QA-uartL glaises veye obta-ined ty
malting crystalline Bra741 quartz uallaar the same ex-aTimental
conditions 'cut at different teinparaturos cf 17'"'0.-.1710, 1.7,50-1.500.,
1800, 1850 and 190000. There quartz Classes ware preparod t-y
N.F. Orlov in Pv~~fasser V~V, A.'argin,z laboratory. The Slaus vjhen
molten was hold at the highest t5uiper-it."-re for 30-40 ialr,'.~tes and
vias not subjected to annealing after preparation. On malting of the
Brazil quartz at 1720-1-14000, and subselpont 1!oclin6 a Ptnvdir va-5
obtained Yhila in all the remairaing caieg (1-artz glassei w8re pr3lAcad.
Samplas wore in the form -f layers of vary fine paiv-_'ar cn ~,71 ita -,s
Tran5mission was measured in the rogicn up to 13 ~k uiiine a Bez-L-aanz
0 -
C a ri i, A spact-ropho-tcmater with a NaCl priiim~ For maislarem-ent5i at 13-15 and
the 1r-- -11 5 pc_;Ar,~pl, otc-matev vn-s wJ.t-,. Naf,", an-1 103r p,:*sma.

2-he Transmission Spectra of '4uartz- Glass in the aegion 2-24; ta S Cv/.5 1 - Ir --l -4/.' 9
The technique of measurements is described in greater detail in
Refs 1 and 2. Pigs 1-3 show the transmission spectra cf powders in
the region of the fundamental absorption bands of silicon at 11.5-13,
14-15, 18-24 FL. The curves in Figi 1-3 refer to the fcllcvdng
substances; 1 - dL-quartz; 2 - glass melted at 1720-1740OC;
3 glass malted at 1760-1800OC; 4 - glass melted at 18000C;
5 glass melted at 1850'C; 6 - glass melted at 19001C, 7 - glass
produced by melting Aldan quartz at 190000, 8 - glass made by the
Hereus Company in powder form; 9 - a film blown from the Hereus glass.
Figs 4 and 5 show the transmission spacta of damaged quarts glass
at 11-15 and of silica at 3 ~A rei?pectively. The quartz glass spectra
viere foun to be complex because of incompleteness of destruction of
the quartz lattice on malting. In spite of the fact that each glass
was held at its maximum temperature for 30-4-0 minutes, the transmission
spectra contained bands chara-teristic of the quartz lattice (doublet
Card 2/3 at 12-13 ix and bands at 14 and 19 11-1. Other reasons for complexity

The Transwi6sion Spectra of quartz Glass in the Region 2-24~L SOVI 51-5-1-4/19
of the quartz or glass spectra advanced by the authors are -'Uhe
presence of polymorphic forms in the original crystalline quartz and
the presence of Si-O-H groups in the glasses. The authors thank
A.A. Lebedev and A.G. Vlasov for their advice. Thera are 5 fivres
and 6 referencee, 4: of which are Soviet, 1 Belgian and 1 German.
ASSOMT1011. Gosudarstveruiyy optichaskiy Institut im, S.I. Vavilo7a (State
Optical Institute imani S.I. Va-.ilc--)
SUELITTED June 28, 1967
r,lard 3/6 1. Quartz - Spectrogra-phic analysis 2. Quartz - Thermal factors
3. Spectrophotometars Applications

SEVCHENKO, N.A.; FIORINSKAYA, V.A.
.
Infrared transmission spectra of porous and quartzoid glasses.
Opt. i spektr. 4 no.2:189-195 F '58. (KIRA 11:4)
l.GosudarstvannyT opticheskiy, Institut im. S.I. Vavilova.
(Glass-Spectra)

SAVULESCU, Alice, acad.; DUMITRAS, Lucretiaj SEVCENOO, Victorial
VASILIU, Ida - ------ :-- .
Research on the resistance of the different kinds of wheat to
the attack of the Tilletia nanifica (wagn.) Savul.
(T. contraversa Kuhn.) fungus, and the effect of some chemical
substances in the fight against this parasite. Studii cere biol
veget 15 no.2:163-173 163.

SEVCIK, A.
Atoms for peace. Jaderna energie 10 no. 5:151 1-tr t64.

to 0 0 0 0 * 0 0 e : I - . , 4
0 so * 0 is ?
U

A
I L? a F. or A, Q
I, -it cc ..u 8-1 A- -1 1 1" k 4, is r
Ouillogfisphic polostagraphy with pe
I'M a, trisilospillf;m.,
VGltjLgo. A. .4,ZA. 6,11ection t7who.joy. Ckem. __4
mkxs. 13, :40-ff(1948) (in Ea;Ii2h)_-ocjIQvAphiC
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SEVC1K, A.
"Perspective Planning in the Power Industry". ~QjRq;
I.TIKA, Vol - 3, No. 2, Febru&U
53, FTaha,-Czech0910va11iz-)-
lqr
SO: Mcnthly List of ast Furopean Accessims, LC, Vol. 3, Y-0. 5, YAY 1954, Unclassified.

SEVCI.K, A.
Tasks of railroads in our power economy. p. 94o
French railroads under Ameridan control. p. 95.
ZET ZNICE. Vol- 4. no. 4. Apr. 1954. Prange.
SO: Monthly List of Last Suropean Accessions (EFAL) LC. Vol. 5, No. 6. June 1956 Uncl.

SFVCI-.i, A.
Survey of Soviet publications in the field of the peaceful use of nwlear enerU* ps 700o
Vol. 3, no.~ 6, 1955
SOMISKA VEM: E14ERGETIKA
Fraha, Czecho3lowilcia
So: Eastern Eurcrean Accession Vol. 5 No. 4 April 1956

Frospective developent of tte Czeelloslo-ml( i-iomr itleustry in connection with
IY9 peaceful use of nuclear energy.
'117
, .,-,
r
Vol . 5, no. P-, 3.955
ZA SCCIALISTICKOU VEDU A TECHNINU
Praba, Czec)--oslovakia
SOUrCe: Monthly List of East Eurorean Accesions, (FXAL), L C, Vol. 5, no. 2
-re.bruary 1956, Unc3..

SEVCIK, A.
Development of ato,..iic power plants. P-377
RIEGET-LYA'. (Ministerstvo energetiky a Ceskoslovenska vedecka technicka spoleenost
pro energetiku pri Ceskoslovenske adademii ved) 1~raha, Czechoslovakia.
Vol-5, no.10, Oct. 1955
Monthly List of' East Europe~n Accessions (EEAI) LC, Vol.8, no.3-1
Mov.1959
Uncl.

BROWN. Gordon; HAJSMANOVAJ, D., inz, [translator); SEVCIK, A.,:inz., dr,
(translator]
Preparation of the operation of the No.l reactor in Calder Hall.
Jaderna energie,'-~,no.3:80-85 Mr 157,

STRETCH, K.L.; HAMORIM, D., inz. '-branslator]; SEVOIK, A.. 1=o2 dro
(translator]
Calder Hall No.1 reactor put in operation. Jaderna energie 3 no#4-107-
M Ap 157.

'S'EVCIK, A.
"Technological and economic aspects in the development of atomic electric-power
plants in Czechoslovakia,"
JADERNA T,17RGIE. Praha, Czechoslovakia, Vol& 4, October 1958o
Monthly List of Ust European Accessions (PYAI), LC, Vol. 8, No. 8, September 1959*
Unclas,