SCIENTIFIC ABSTRACT SHPINEL, V.S. - SHPINEL, V.S.

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• Collection: Scientific Abstracts
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• Sequence Number: 1
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT


BETA SPECTROMETER WITH TWO MAGNETIC LENSES
AND INTERNAL CORRECTING COILS. V. S. Shpiral. Zhur.
gitspil'. I Teorol. Ftz. 23, 355-4(1953) Feb. N k~ssla.7_
A $-ray spectrometer is sketched, &M a curve obtained
therewith of the conversion electrons of 90-hr Nb"l is
presented. The K/L conversion -coefficient ratio was found
to be 2.5 t 0.5. (O.Y.1

USSR/Electricity - Ionization Losses Apr 52
"Measurom s of Fluctuations of Ionization Losses
for Electrons in Thin Layers of Substances',~' Y. S.
Shpinel-, Moscow State U
"Zhur Eksper i Teoret Fiz" Vol =, No 4, yy 421-
424
In a beta-spectrometer curves of distribution of
ionization losses -in Al 1.65 and 3.96 mg/sq =
thick vere measured for electrons of energies of
148 end 222 keV. Exptl values of probable losses
Wee well with theory, provided correction is
made for longer path due to scattering. However,
i215T25
the obtained distribution is noticeably wi der than
in the theoretical curve of Landau. Indebted to
R. 1. Moshkina and M. Z. Shtal. Received 21 Jun
51.
215T25

USSR/ Nuclear Physics
Card 1/1 Pub. 43 - 311-1
Authors S Shrinelt, V. S.
Title I The life sran of the first excited state of Li7 from observations of the
Doppler effect and gamma-ray aberration
Periodical I Izv. AN SSSR. ser. fiz. 18/1, 65-75, Jan-Feb 1954
Abstract I Ex-oeriuents show that the method based on the masurement of the Doppler ef--
feet can be very effective for estimating the life 'span of excited states of
nuclei withq 1.4 Mev. The best noticeable
peak is at 147 kev; it is assumed that this peak corresponds to the first
excited level of J131. Further details of the r-p-coincidence spectrum are
to be seen in Figs. 7 and 8. Figs. 9, 10, and 11 show the weak part of the
~-spectrum in coincidence with 780 kev 31-rays, the spectrum of the
Isumming coincidences" (E sum ~ 770 kev) and the part of the electron con-
version spectrum of Te131 with the 780 and 850 kev lines. The 780 kev
transition ends in the ground state of J131. For both these afore-
53 78
mentioned lines the multipolarities El and E2 are assumed, and the internal
Card 3/4

Investigation of the Te131 Decay Scheme S/048/59/023/012/003/009
(T 1/2 ~ 30 Hours) B006/BO6O
conversion coefficients for these lines are given (theoretical and ex-
perimental data) in Table 2. Finally particulars with reference to the
p-oposed decay scheme (Fig. 12) and the complete results of investigations
are discussed. Accordi ng to the shell model Ig7/2 is regarded as the
ground state and 2d 5/2 as the first excited level (147 kev). Fig. 13
illustrates the level distance 2d 5/2 - 1g7/2 for different iodine
isotopes as a function of the even neutron number. The authors thank
Yu, M. Ukrainskiy, N. P. Rudenko, 0. M. KalinkiD&.,_a8 well as L.P.Sorokina
and V. V. Skvortsov, students of the Physics Department of Moscow State
University, for their' assistance. There are 13 figures, 2 tables, and
24 references: 4 Soviet.
ASSOCIATION: Nauchno-issledovatel'skiy institut yadernoy fiziki
Moskovskogo gos. universiteta im. M. V. Lomonosova (Scien-
tific Research Institute of Nuclear Physics of the Moscow
State University imeni M. V. Lomonosov)
Card 4/4

5(2)
AUTHORS: Vinogradov,. A.,V., Shpinell , V. S. SOV/32-25-9-12/53
TITLE: On the Determination of Zirconium in the Presence of Niobium and
Tantalum According to the Phosphate- and Hydroxyquinoline Methods
PERIODICAL: Zavodskaya laboratoriya, 1959, Vol 25, Nr 9, pp 1067-1068 (USSR)
ABSTRACT: A method for the precipitation of zirconium in form of its
hydroxyquinoline (I) in the presence of ITb and Ta in a strongly
ammoniacal medium and a subsequent volumetric determination
were described in a previous paper (Ref 3)- In the present case
the behavior of Nb and Ta in the Zr precipitate as a phosphate
(II) or (I) was tested with the aid of radioactive isotopes. The
already known conclusion that without H 202 (111)' Nb and Ta are
completely coprecipitated with (II) was confirmed. The presence
of (III) which little influences the coprecipitation of Ta
obstructs, however, the coprecipitation of Nb (Tables 1, 2~j
however, only with small Zr quantities and individual precipi-
tation of Zr (without Nb) may be expected. It was already reported
(Ref 3), that 2.88 mg Zr in the presence of 8 - 18 mg Nb and
Card 1/2 25 mg Ta may be determined by a precipitation as (I). With a

On the Determination of Zirconium in the Presence of SOV/32-25-9-12/53
Niobium and Tantalum According to the Phosphate- and Hydroxyquinoline Methods
PH 10-7 - 11.5 Nb does not influence the determination, nor does
the partially.coprecipitated Ta disturb the Zr determination
(Tables 3-5). The investigations led to the following
conclusions: In the (II)-precipitation along with (III) a partial
coprecipitation. of Ta occurs. The gross of Nb remains in
solution. The larger the coprecipitated Nb quantity is, the
larger is the precipitated Zr quantity, so that (as mentioned
above) a separation is only possible with negligible quantities
of Zr and Nb. The application of a successive precipitation with
(II) and then (I) permits a complete separation of small
quantities of Zr (2.88 mg) from Ta and Nb (Ref 3). With larger
quantities a repeated precipitation bf zir6onium as (I) could
possibly render satisfying results. Also referred to are other
possibilities for Zr separation, as its. by extraction (Ref 3).
There are 5 tables and 4 Soviet references.
Card 2/2

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HIDT
[;go
qSOG/6LOG

21 (8)
AUT11ORS-. Bedesku, A., Mitrofanov, K* P.) SOY/56-37-1-55/64
Sorokin, A. A., Shpinellp V. S.
The Decay of Te131(T 1/2 - 30 hours) (Raspad Te 131(T 1/2 - 30
Chas))
PERIODICAL: Zhurnal ek8perimentallnoy i teoreticheskoy fiziki, 1959, Vol 37,
Ur 1 1 pp 314 - 315 (USSR)
ABSTRACT: Tel3l_decay has already been investigated in a number of papers,
and in reference 3 also a decay scheme, basing upon the energy
equilibrium in P- and r-transitions was published. The authors
of the present "Letter to the Editor" have set up an exact
scheme of the lower levels of J131 (excited in the decay of the
isomer Te131) for which purpose a number of new data concerning
the r- transitions in Te131 were used. The investigations were
carried out in a magnetic lens spectrometer and a scintillation
spectrometer connected in coincidence. The Te131-source was ob-
tained by the irradiation of metallic tellurium of high chemical
Card 1/3 purity, by slow neutrons. The measured r-intensities at the en-

The Decay of Te131(T 1/2 = 30 hours) SOV/56-37-1-55/64
ergies 780, 850, 925, 1140, 1220, 16oo, 1850 and 2200 kev a-
mounted to 100, 40, 15, 35, 25, 5, 2, 0-5 % in the same order.
The transitions 80, 100, 1479 240, 330, 440 and 590 kev were
found both in single spectra and in the spectra of Pr - and
rr- coincidences; (147 kev - first excited state of J 131 o 780 kev
ground state). Table 2 shows the results obtained by deter-
mining the conversion coefficients onto the K-shell:
theor 3
ak .10 1
Er[kev] aexp 103 El E2 Mi Identification
k -
780 0.8 + 0.2 0.84 2-3 3.0 El
850 1.6 + 0.6 0-71 1.9 2-5 E2 (+ MI)
147 26o � 50 - 330 220 M1 + E2
The life-time of the 147 kev level was determined as amounting
to T1/2 =(~-+1)"o- 10 sec., which is in good agreement with ref-
Card 2/3 erence 5. The decay scheme of T 131 found by the authors -is

The Decay of Tel 31(T 1/2 ~ 30 hours) SOV/56-37-1-55/64
shown by a figure. There are I figure, 2 tables, and 6 refer-
ences, 1 of which is Soviet.
ASSOCIATION: Institut yadernoy fiziki Moskovskogo gosudarstvennogo univer-
siteta (Institute of Nuclear Physics of Moscow State University)
SUBMITTED: April 8, 1959
Card 3/3

82612
The Hyperfine Structure of y-Rays, Produced 5/056/60/039/001/028/029
by quadrupole Interaction in the Crystal B006/BO63
Lattice
underwent linear acceleration within ceitdin limits. Measurements were
carried out at the temperatures of liquid nitrogen. The X-radiation
of tin (26 kev) was almost completely absorbed by a palladium film
0.06 mm thick. The y-quanta passing through this filter were recorded
by means of an NaI(Tl) crystal. The pulses coming from the single-
channel pulse-height analyzer were linearly phase-modulated in a radio
device, viz. simultaneously with the changes in the source velocity. The
modulated pulses were fed into a 100-channel pulse-height analyzer of the
type AW -100 (AI-100). Each channel corresponded to a certain velocity
of the source. The measurements were made with two absorbers containing
Sn119, namely, metallic tin and SnNb3 2
alloy. The dependence of resonance
absorption on the velocity of the source for a tin specimen 20 mg/cm
thick is shown in the upper part of the Fig. on p. 221. The curve has
three peaks at 0 and �1.46 mm/sec (velocity of the source). This
corresponds to a hyperfine structure of the 23.8-kev level, and is
explained by the interaction between the quadrupole moment of the nucleus
in the excited state (spin 3/2) and the electric field of the crystal.
Card 2/3

84972
'',i/056/60/03 9/003/058/058/Xx
B006/BO70
AUTHORS: Delyagin3 N N., zhpinell, V. S.~ Bryukhanov, V,, A-
Zvenglinskiy) B.
119
TITLE- Nuclear Zeeman Effect7in Sn , 11
PERIODICAL: Zhurnal eksperimentallnoy i teoreticheskoy fiziki, 1960,
Vol. 39, No. 3(9), PP- 894 - 895
TEXT. The present "Letter to the Editor" is the continuation of a pre-
vious paper (Ref-4) in which the authors reported on measurements of the
dependence of resonance absorption of 23.8-kev gamma quanta emitted in
the Sn 1119m decay on the velocity of the source relative to the absorber.
The authors have again carried out analogous measurements, but thip time
the absorber was placed in an external constaiat magnetic field. In this
case, a Zeeman splitting of the absorption line took place, and a hyper 'IK
fine splitting was observed in the spectrumg from which the magnetic
moment of the exsited 23.8 kev level of Sn 119 could be determined. The
Card 1/4

84972
Nuclear Zeeman Effect in Sn 119 S/056/60/039/003/058/058/XX
B006/BO70
gamma source was a foil of white metallic tin (94% of Sn 118 ) exposed to
thermal neutron irradiation in a reactor, The absorber was SnNb 3 -Ln
which no quadrupole splitting of the 23.8 kev level. takes place. accord-
ing to Ref~ 4. Thus, the observed hyperfine splitting of thq absorption
line is only a consequence of the Zeeman effects For the measurements,
the source and the absorber were cooled to nitrogen temperature. The
absorber (20 mg/om 2 Sr-Nb 3) was placed between. the pole pieces of a mag-
4-
ne,, producing a constant magneti-~- field of 12,150 0e in the absorber,
and the measurements were made with and without a magnetic field. The
ground level. is split in two and the excited one (3/2) in four sub-
le-eis under the action of the field. 6 M11 tranz~i~,-Aons are possible be-
nween these.. By changing the velceity of the ecurce (positive and nega-
tive velocity) 12 lines must be obEervable. The shape of the absorption
speztrum is dependent on the magnetic moments ~u and ijil of the ground
4
119
and excited states of the Sn nucleus~ ~-,n the relative signs of these
moments; and on the quadrupole aplitt--ing b ~f hr, excited state. The re-
,cults c~f +hr.- measurements are reprerianted in a --Liagram
Card 2/4

NualeariZeeman Effect in Sn S/056/60/039/003/058/058/XXI
B006/BO70
(ordinate : counting rate; abscissa velocity of the source and the
oorresp6nding energy shift). The distance between the hyperfine struc-
ture components was determined from the spectral measurement to be
j
P ).10-7
b - (1.~+0.2 ev. This is in good agreement with the.value obtained
in Ref.IT. From the positions of the three maximal p was found to be
0
-0-1+00~3) muclear magnetons and the moment of the 23.8 kev level to be
910-4) nuclear magnetons. This value is considerably higher
than that given by the single-particle model. A. I. Alikhanov and
V. A. Lyubimov are mentioned. There are 1 figure and 5 references:
Soviet,-T=erman, and I French.
ASSOCIATION: Moskovskiy gosudarstvennyy universitet (Moscow state
Universit
Y)
SUIRAITTED: July 4, 1960
Card

84972
Card 41
4W
bft~
H-0
Iva
S/056160/039/003/058/058/xx
BOo6/rBO70
4 ctr
8; 19 20 x Iff tv

VINOGRADOV, AN.; SHPINELI, V.S.
Composition and properties of zirconium hydroxyquinolinate obtained
from an oxalate medium. Zhur.neorg.kbim. 6 no.6:1338-1341 Je
,61. (MIRA 14:11)
(Zirconium compounds) (Quinoline)

jTRIC4XIIEV, A.T.; NOVIKOV, L.S. ; SOROKIN, A.A.; MALKIN, ~,.A.; TSVETKOVA,
1U.;
InveLftigating neutron-deficient Th isotopes. Izv. AN SSSR. Sar.
fiz. 25 no.7:813-825 Jl 161. (MIRA 14:7)
1. Nauchno-issledovatellskiy institut yadernoy fiziki Moskovskogo
gosudarstvennogo universiteta im. M.V. Lomonosova i Ob "yedinennyy
institut yadernykh issledovaniy.
(Terbium--Isotopes)

BEDESKU, A.; KALINKINA, O.M.; SOROKIN, A.A.; FORAFONTOV, N.V.;
SHPINELI, V.S.
Decay scheme of Te131m. Zhur. eksp. i teor. fiz. 40 no.1:91-100
Ja 961. 1, (MIRA 14: 6)
1. Institut yadernoy fiziki Moskovskogo g4osudarstvennogo
universiteta.
(Tellurium-Decay)

BRYLqMNOV, V.A.; DELY-4,GTN, N.H.; ZVENGLINSKIY, B.; SHPINEL15, V.S.
Energy shift of gamma-ray transition obseinred in the
resonance ab6orbtion of -r-quanta in crystals. Zhur.
eksp. i teor. fiz. 1+0 no.2:713-714 F 161* (MIRA 14:7)
1. Institut yadernoy fiziki Moskovskogo gosudarstvennogo
universiteta.
(Gamma rays)

LMITROFANOV, K.P.; SHPINELI, V S_
Resonance absorption of 23.8 Kev. gamma rays by SnI19, as observed
from conversion electrons.. Zhur.eksp.i teor.fiz. 40 no.3:983-985
Mr 161. (MIRA 14.8)
1. Institut yadernoy fiziki ~bskovskogo gosudarstvennogo universiteta.
(Gamma rays) (Tin-Isotopes) (Electrons--Emission)

314PINELI;_V~.S.; BRYUKHANOV, V.A.; IELYAGIN, N.N.
Temperature effect.on.tho byperfine structure of gamma-radi-
ation. Zhure, eksp. i teor,61 fiz, 40 no.5:1525-1527 My 161*
1. Institut yadernoy fiziki Mookovskog6 gosudaretvermogo
uni-versiteta.
(Gamma 3~ays) (Spect.Tim, Atomic)

26688
S/056/61/041/0053/003/038
0 (/Or r' //6 ~' IS-S-r) B104/B108
AUTHORS: Delyagin, N. N., Shpinell, V. S., Bryukhanov, V. A.
TITLE: Resonance absorption of 23.8 kev y-quanta by Sn 119 nuclei in
crystals
PERIODICAL: Zhurnal eksperimentaltnoy i teoreticheskoy fiziki, v. 41,
no. 501), 1961, 1347-1358
TEXT: The resonance absorption of 23.8-kev 7-quanta by Sn 119 nuclei in
SnO 2' SnO, P-Sn,and SnNb 3 crystals was studied. Sn119m in SnO 2 was
used'as gamma source. The authors--,derived the-formula
+"0 1
-(;/(I + x'T dx
8 (V) = Xf 'I expII+ (X + Y)3 (5)
X= E-Es Y Esulc /I = aj'n.
r12 r2
-to '_ca_l_'&iMa`Fe7f
which enables them of the rption spectrum
measured by experiment. r is the total width of an absorption level, v the
relative velocity between source and absorbers ft is the absorption:
Card 1/6

26688
8/05Y61/041/005/003/038
Resonance absorption of ... B104 B1 08
probability of a y-quantum without recoil, ri is the number of atoms on
1 CM2 of the absorber, x is a parameter determining the contribution of
the investigated y-quanta to the overall counting rate. The line width in
the resonance absorption spectrum as a function of the thickness of the
absorber is derived from formula (5). This formula is discussed for
cases where 1) the 8vurce contains nuclei of an isotope, 2) the emission
lines are split up, the absorption lines are not split, and 3) the
absorption lines are split, too. Because of quadruple interaction, the
Sn 119 ground state is not split (spin 1/2). Consequently the absorption
spectrum consists of two lines of equal intensity. The distance between
these two lines is 1 2 2 2
e Qq (1 + L )11 , where Q is the nuclear
zz 3 1
quadrupole moment, and q is a parameter of asymmetry. For a given velocity
v0 the unsplit emission line coincides with one of the two components of
the split absorption line. Resonance absorption is then
exp
t +.0 1 + dx),
Card 2/6

26688
S/056/61/041/005/003/038
Resonance absorption of B104/B108
The resonance absorption of the compounds mentioned above as a function of
the velocity of the absorber relatively to the source was determined at
nitrogen and room temperatures with an experimental device shown in Fig. 1.
The SnO2 source was prepared from tin enriched in the SnI18 isotope up to
92% and irradiated by thermal neutrons in a reactor. The absorption
probability without recoil was determined from the dependence of F-(v) on
the absorber thickness. Results are given in the table. The calculation
of fl is possible if the phonon spectrum of a real crystal is known.
Calculation of fl in Debye approximation is discussed. F. L. Shapiro
(UFN, 72, 685, 196o), V. A. Lyubimov, A. I. klikhanov (Izv. AN SSSR,
seriya fiz., 24, 1076, ig6o), K. P. Mitrofanov, V. S. Shpinell (ZhETF,
40, 983, 1961 and Yu. 1,1. Kagan are mentioned. The authors thank N. Ye.
Alekseyevski,y for valuable discussions. There are 7 figures, 1 table, and
20 references: 7 Soviet and 13 non-Soviet. The 3 most recent references
to English-language publications read as follows: W. Visscher, Ann. of
Physics,
j , 9, 1941 1960; H. J. Lipkin, Ann. of Physics, 1, 332, 196o; S. De
Benedetti, G. Lang, R. Ingalls, Phys. Rev. Lett., 6, 601, 1961.
Card 3/6

Resonance absorption of
26688
S/056/61/041/005/003/038
B104/B108
ASSOCIATION: Institut yadernoy fiz-*Lki Moskovskogo gosudarstvennogo
universitets. (Institute of Nuclear Physics of Moscow State
University)
SUBMITTED: April 27, 1961
Fig. 1, Experimental device. Legend: 1) Pulley; 2) cam;
of the amplitude modulation device; 4) holder for absorber;
6) palladium filter; 7) lead collimator; 8) low temperature
9) absorber; '10) lead collimator; 11) NaI(Tl) crystal; 12)
3) contact disk
5) source;
vessel;
photomultiplier.
Card 4/6

S/056/61/041/006/014/054
B1 13/13104
AUTHORS: Shpinell, V. S-.-, Bryukhanov, V. A., Delyagin, N. N.
TITLE; Isomeric energy shifts of the 23.8-kev 1-transition in the
Sn 119 nucleus
PERIODICAL: Zhurnal eksperimentalinoy i teoreticheskoy fiziki, V~ 41,
no. 6(12), 1961 , 1767-1770
TEXT: The authors measured the isomeric shifts of the 23.6-kev 1-transi-
tion in the Sn119 nucleus in various tin compounds. An Sn'19mO2 prepara-
tion served as source which was kept at room temperature. The absorber
consisted of various crystalline tin compounds and was kept at nitrogen
or room temperature. In SnF2, the absorption line is split into two
components due to quadrupole interaction of the excited SnI19 nucleus
with the gradient of the electric field in the crystal. The isomeric shift
6 with respect to the energy of the 1-transition in the Sn02 crystal was
determined at room temperature. There was no quadrupole splitting in the
absorption spectrum of the SnCl 2 crystal. Besides in P-Sn and SnO,
Card 1/3

S/056/61/041/Oo6/o'!4/054
Isomeric energy shifts of the B113/B104
quadrupole splitting was only observed in SnP2: A - (15-5 � 2-5)~10-8 ev.
,6 did not much depend on temperature. Measurements of energy shifts for
various compounds showed that there were no distinct rules governing the
isomeric shifts of the 23.8-kev y-transition in the Sn119 nucleus. It
may be assumed that for bivalent compounds the two p-electrons in the
outer shell of the tin atom play a special role in the chemical bond; the
valency electrons of the following shell, the two s-electrons, affect the
chemical bond in tetravalent compounds only, and lead to a sharp change
of the isomeric shift, Hence, it follows that the density of the
s-electron wave function in the region of the nucleus is lower in
tetravalent than in bivalent compounds. Comparing the isomeric shift of
bi- and tetravalent tin compounds one may put down:
2 2)[1,7(0)121 _ 1 2
EII -EIV -(R exe - R0 1 T(0)11V], where Rex c and R0are the
effective radii of the charge of the Sn119 nucleus in the excited and
ground state, T(O) the electron wave function in the region of the
2 > 2
nucleus., Rexc R.) i.e,, the effective radius of the charge distribution
grows when the Sn119nucleus is excited. Since quadrupole interaction
exists, the magic proton core of the Sn119 nucleus is not spherically
Card 2/3

S/05 61/041/006/014/054
Isomeric energy shifts of the .. B113YBI04
symmetric. There are 2 figures, 1 table, and 9 references: 5 Soviet
and 4 non-Soviet. The four references to English-langus,6-~ publications
read as follows: 0. C. Kistner, A. W. Sunyar. Phys. Rev. Lett., 4, 412,
1960; S. De Benedetti, G. Langt R. Ingalls. Phys. Rev. Lett., 6, 6o,
1961; 1. R. Walker, G. R. Wertheim, V. Jaccarino., Phys. Rev,, L~_ett-, 6,
98, 1961; A. J. F. Boyle, D. St. P. Bunbury, C. Edwards,, Proc. Phys.
soc., 77, lo62, 1961.
ASSOCIATION: Institut yadernoy fiziki Moskovskogo g9sudarstvennogo
universiteta (Institute of Nuclear Physics of the Moscow
State University)
SUBMITTED: July 1, 1961
Card 3/3

AU MIORS t Drytilthanov, V.A., Delyngin, N.N., ZvotiXtinnkLy, 11.,
-mid Shpinel'' V.S.
TIna.,.: Heasurfmient of tit(, renatiance abnorption spectra of
gagnma-rnyn tit crystals
PERIODICAL: Pribory i tisidmikii t~kmp,~r imon tit, no.1, 19621, 23-28
TEXT: In n prLvioum imper (Ref,5i Zh.elunperim. i
1960, 39, 2201 Ibid 110, 71-)) the authors df~,qcribed sit apparaLuil
which was lined to Inventignte the MO.-inbauer effect ( '21 ~-) . 3 It V
g..Mma-ray.q "it 511119 nuclei it% cryital!v). In thin avimt-litits the
r(,InLive velocity or the source and the absorb:yr is varied
linearly with tirne with the aid of' a mechanical device and the
intenuity of the garitina-rays corre-sponding to difCorent vnlu,!..q of
this velocity is recorded with n nitAlti-channel Iticknorter and an
witpUttide modulator working in synchronism with the device
prodticing the above velocity variation. In the prement note the
authorn give a more datniled description of the appnrntun,
incItiding both the mechanical and the electronic parts of it. A
typical absorption spectrum for a SnO, crystal (9 mg/=2 target
Card 1/2 2

M~nsurcmvnt of tile rumunmice
and 6 Ing/cm2 source, both at room temperature) In ~Niiowzi in Fig.6
It is reported that Towidth of tile 23.8 kov excited ntnte of' SnI19
is (2.6 + 0.25) x 10- V. There are 6 fiFitren.
ASSOCIATIONt Institut yadernoy fiziki MGM
(Institute of Nuclear Physics MG11)
SUBMITTED June 15, 1961
NO'
Card 2/2

S/188,/62/000/003/001/012
J. - B111/3112
U 0 R 5 Vasilev, Ts. B., Forafontov, N.
144
S-u-dy oz the decay ty. Ce by the coincidence method
oes ot
R 0 _,,i 1 CAL 'doscow Universitet. Vestnik. Seriya, III. Fizika,
;_~stronomiya, no. 35, 1962, 3-16 ,
14 A 144
TEXT: The decay types of Ce " in an odd-odd~Pr nucleus are studied
b:,, :na_:,,ns c,--:' a '~-s::ectromneter and a luminescen ce P(O-spectrometer in
co.nc.icence circuit, using P-e e -e and e coincidences to explain cer-
~a-'n nroblems. The rusults are in atrtement with the decay scheme of
et al. (Nucl. Phys., 16, 1, 1960). The'o-e- and e--e - 1#1
I. S. G=iEer
cc*Lnci4dence measurements -rere performed both dpon.all electrons (total
c
4nc4-~ences) and unon. individual electron groups separated by a
c , -1 -
diff~-rential discriminator. The variants oil the decay scheme can be
examined 'oy comparlnE the intensity of the conversion lines in the
coincidence spectru:-. The results from measuring P-e- and e--e-
coincidences are summarized in Fig. 1 and Fig. 2, those of v'-e and e--.i'
-coincidences in Fie. 4 and Fig. 5, discussed in detail for the individual
Card 1/~'i 77

SHPINELI, V.S. (Moskva)
The 96ssbauer effect and its application. Izv. AN SSSR. Otd.
tekh. nauk. Energ. i avtom. n0,4:71-82 Jl-Ag 162. (KRA 15:8)
(Gamma rays) (Nuclear magnetic resonance and relaxation)

BRYUKHANOV, V.A.; DEIZAGIN, N.N.; ZVENGLINSKIY, B.; SERGEM, S.A.; SHPIREL,
V. S. ----------
Measuring spectra of gamma-ray quanta resonance absorption In
crystals. Pribj tekh.eksp. 7 no.lt23-28 Ja-F 162. (141RA 1533)
1. Institut yadernay fiziki Moskovskogo, gosudarstvennogo universiteta.
(Gamma-ray spectrometry)

KFffUKOVA L. N;; MURAVIYEVAI, V. V.; SHPINELI,, V. S.; MALYSHEVAJ, T. V.;
kHOTIN, V. A.
Level scheme of excited by electron capture in Pt189.
Izv. AN SSSR. Ser. fiz. 16 no.12:1492-1494 D 162.
(MIM 16: 1)
1. Nauchno-issledovatel'skiy ins;,*.Itut yadernoy fiziki
Moskovskogo gosudarstvennogo universiteta im. M. V. Lomonosova
i Institut geokhimii i analiticheskoy khimii iml- Vernadskogo
AN SSSR.
(Iridium-Illotopes) (Platinum--Isotopes)
(Electrons-Gapture)

KRYUKOVA, L. N.; MURAVIYEVA, V. V.; FORAFONTOV, N. V.; SHPINELI, V. S.
Study of e- r--coincidence in Pt188 decay. Izv. AN SSSR. Ser.
fiz. 16 no.12:1521-1522 D 162. (MIU 16:1)
1. Nauchn6-issledovatellskiy fizicheskiy institut Leningradskogo
gosudarstv,ennogo universiteta im. A. A. Zhdanova.
(Platinum-Decay), (Spectrometry)

S/04 62/026/002/016/032
BI 06YDI 08
AUTHORS: Strigachev, A. T., Sorokin, A. A., and Shpinell, V. S.
I.....................................
TITLE- Study of the terbium fraction
PERIODICAL: Akademiya nauk SSSR. Izvestiya. Sariya fizicheskaya,
v. 26, no. 2, 1962p 252-258
TEXT: The terbium fraction, isolated radiochemically from a tantalum
target after 660-Mev proton bombardment in the synchrocyclotron of the
OIYaI was studied with a 0-spectrometer Brin (BPP) (double-focusing) by the
method of yy-coincidences. The radiation source and the measuring device
have been described before (Izv. AN SSSR. Ser. fiz., a, no. 7, 813 (1961)).
The spectrum of the conversion electrons of the Tb fraction was measured
with a resolution of 1-2% in the range of 10-100 kev, and with 0
.4%
dissolution in the range of 530-3000 kev. (Tables 1, 2). The X and L
lines of the y-transition with 108.3 kev were used to graduate the
spectrometer in the range of 10-100 kev. The spectrum of the Tb fraction
was investigated up to conversion electron energies of - 3 Mev. Above
1 Mev, however, no conversion lines could be observed. The spectrometer
Card 1/,,67

Study of the terbium fraction
S/048/62/026/002/016/032
B106/B108
state f7/2 in a paper by N. M. Antonlyeva et al. (Izv. All SSSR. Ser. fiz.,
22, no. 2,- 135 (1958))- Possibly the first excited level with 108-3 kev
is of the h 9/2 type. This assumption does not contradict to the
multipolarity M1 + E2 of the 108.3 kev y-transition. The authors thank
the team of the LYaP OIYaI under supervision of V. A. Khalkin for
separating the Tb fraction, and K. Ya. Gromov and I. A. Yutlandov for
assistance. There are 5 figures, 3 tables, and 10 references: 5 Soviet
and 5 non-Soviet. The three most recent references to English-language
publications read as follows: Toth K. P., Bj~rnholm S.f J~rgensen M. H*j
Nielsen 0. B.f Skilbreid 0.1 Svanheden A., J. Inorg. and Nucl. Chem., jA,
1/2) 1 (ig6o); Toth K. S., Nielsen 0. B.p Skilbreid O.j Nucl. Phys., .19,
No- 4, 389 (1960)1 Toth K. S., Bj~rnholm S;' JPgeneen M. H., Nielsen
0. B., Skilbreid O.t Phys. Rev., L16t 1, 1 8 (1 959)-
ASSOCIATION: Nauchno-iseledovatellskiy inatitut yadernoy fiziki
Moskovskogo gos. universiteta im. M. V. Lomonosova
(Scientific Research Institute of Nuclear Physics o-f Moscow
State University imeni M. V. Lomonosov). obtlye'dinennyy
institut yader%~h iseledovaniy (Joint Institute of
Card 3/f Nuclear Researc

BRYUKHAMV, V.A.; COLtDANSKIY2 V.I.; DELYAGIN, N.N.; MAKAROV, Ye.F.;
SHPINELI.
Observation of the M6ssbauer effect in a tin-containing polymer
Zhur. eksp. i teor. fiz. 42 no.2%637-639 F 162. (14MA 15-:2)
1. Institut khimicheskoy fiziki AN SSSR i Institut yadernoy fiziki
Moskovskogo gosudarstvenno'go universiteta.
(Polymera)(Gamma-ray spectrometry)

S/056/62/042/003/008/049
B104/B102
AUTHORS Fam Zuy Khuyen, Shapiro, V. G.p ~~4pinel',_V. S.
125
TITLE: Resonance scattering of r-quanta in Te
PHIODICALi Zhurnal eksperimentallnoy i teoreticheakoy fiziki, V. 42,
no. 3, 1962, 703 - 706
TEXT: The resonance of 35.5-kev x-rays emitted from Te125m was studied,
Te 125m was obtained from neutron-bombarded metallic tellurium enriched in.
Te124 up to 66;1;1. The Te02 obtained was used to produce sources of 20
MU/GM2 thickness. A TeO layer enriched in Te125 to 92~~ and applied onto,
2 20
an aluminum base served as scatterer. A luminescence spectrometer
recorded the X-radiation from the scatterer. This radiation contained
also resonance-scattered -quanta and the non-resonance-scattered radia-
tion from the scatterer, the base, the shield, etc. The pulses from the
photomultiplier (Fig. 2) were fed into two sealing circuits over an 7
amplifier and a single-channel discriminator. One of these circuits
Card 1/3

S/056/62/042/003/008/049
Resonance scattering of ... B104/BI02
Fig. 1. Te 125m decay scheme.
Fig. 2. Experimental arrangement.
Legend. (1) Source; (2) scatterer, in an NaI(Tl) detector crystal,
(4) lead collimator; (5) 'Lead plate; (6) background filter; (7) black
paper.
77
Fig.
12$177
Te
145's hev
Fig. 2 201-1
L --H=.F4,3.6: 40
4 � Ace, IS, SkeV Z4 7
I(-z,H=40.f.Y:f,6 Ce z//
I . 1 25
77777277777771111111111
Te
Card 3/3

0
S/05Y'2/042/005/007/050
'~!ar-netic moment of the ... 3125 3108
~:H 2.02 �- 0.07 mm/sec -1-041 of the nuclear magneto n, and 1L
0 0
denote the magnetic moments of the ground state and of the excited state
119
0-7 ~he Sn nucleus, respectively, H is the mean field strength). The
isomeric shift of the absorption line in the alloy is +1.36 t 0.04 mm/sec.
The ma.-netic field acting upon the tin nuclei in the alloy is 68 � 2 koe.
This I nternal magnetic field depends on the composition of the alloy.
There are 1 figure and 1 table. The most important English-language
reference is: 0. C. Kistner, A. W. Sunyar, T. B. Swan. Phys. Rev., 123,
179, 1961.
ASSOCIATION; Institut yadernoy 'Liziki Moskovskogo gosudarstvennogo univer-
siteta (Institute of Nuclear Physics of Moscow State Universi-
t1y)
Sj3l".ITTED: December 15, 1961
lard 2/2
~j

7 .1.1 c S-Dect::-. . . .
n nc t 0
t n e - va c, e

oc :u v ;:.i of I h o .... .nt j
ou

V_ on I

L',le 'jlval,~nt t-Li c,-):.. oun I~j
vo v;
e-~ --c'-- ion a C~-~! .2.,- it c lo c 3 _ylc. 4 3
-,-.n e 1 .3 i n c o r, 0 u n; z: v, 11- V e Z;

3-,
S2: S n 0 3aSno S 3 -n 3 Q" N -
cl
nu
C S
, k--:.
n
S.-, -3
rl'3r
and -n
7
, ,
0 coo-",
7 `3 0'
1 -
,
"
,
1 L
-:D :17
t c~ n r ob I
-)
7
'
-
2
2
8
.
.
.
, .
1, C E!
1 G 1
,
2
at u - - t o n e
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-
7
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S
~
E
;a 0 C 0.
C

13 u 'I- 7f'T 17 ~4
.ion i Sl Th e -1, cj
.
z:
T n: t 4 u y ae r n oy z-4 ~_o "0 U
0
u n v e r t -a t. 0 Of -C- (.,Lr Y.3 4
n v:7
S 2

S/048/62/026/01 2/008/016
B117/BI86-
AUT11ORSs Kryukova, L. N., Murav'yeva, V. V., Shpinell, V. S.
Malysheva, T. V., and Khotin, V. A.-----
TITLEi Scheme of levels of Ir 189 excited.on electron capture in Pt 189
PERIODICALi Akademiya nauk SSSR.. Izvestiya. Seriya fizicheskaya, v. 26,
no. 12, 1962, 1492 - 1494
TEXTt The decay of the neutron-deficient isotope Pt 189 , T1/2 ' 10.5 hra,
was studied by analyzing the conversion spectrum of the platinum fraction.
In the 30 - 650 kev range, the measurements w'ere made with a magnetic
spiral spectrometer using a method and experimental conditions described
earlier (Izv. AN SSSR. Ser. fiz., 24, 1109 (1960); 25, 1257 (1961)).
Besides the lines found previously, two new ones were discoveredt 381 kev,
T several hours, K457-1 and 644-5 kev, T
1/2 189 1/2 0 + I hr, K720.6. The
energies of the f-transitions in Ir were measured and their multipole
orders estimated (Tab. 2). Proceeding from the similarity of the odd
191 193
, a level scheme was proposed on the basis of the
isotopes Ir and Ir
Card 1/4

Scheme of levels of...
5/048/62/026/012/008/016
3 11 7/.B,1 86
ASSOCIATIONs Nauchno-issledovatellskiy institut yadernoy fiziki Ihoskovskogo
gos. universiteta im. It. V. Lomonosova (Scientific Research
Institute of Nuclear Physics of the Moscow State University
imeni Al. V. Lomonosov); Institut geokhimii i analiticheskoy
khimii im. Vernadskogo Akademii na'uk SSSR (Institute of Geo-
chemistry and Analytical Chemistry -imeni Vernadskiy of the
Academy.of Sciences USSR)
Fig. 1. Energy level diagram of Ir 189
189
Table 2. Energy and multipole order of the f-transitions in Ir
Legends (1) Possible values of the multipole'orders; (2) small admixtures.
Card 3/4

S10481621026101210141016
e,f-coincidences in ... B117/B102
cascade between 140 and 280 kev. The analysis of coincidence and non-
coincidence f -spectra of Pt 188 served to determine relative intensities
of the )- -lines. Comparison between the r -intensities and the intensi-
ties of'the conversion lines resulted in the following ratio of K-shell
conversion coefficients: / K140:0'KlB7"Xl95:X280"L380:'K410:'K470
= This paper was presented
at the 12th Annual Conference on Nuclear Spectroscopy in Leningrad from
January 26 to February 2, 1962. There are 2 figures and 1 table.
ASSOCIATION: Nauchno-'lssledovatellskiy institut yadernoy fiziki Moskovs-
kago gos. universiteta, im. M. V. Lomonosova, (Scientific
Research Institute of Nuclear Physics of the Moscow State
University imeni M. V. Lomonosov)
Card 2/2

BRMHANOV, V.A.; DELYAGIN, N.N.; V S
-- L. .
Magnetic moment of the excited state of the Sn119 nucleus at
an energy of 23.8 Kev. Zhur. eksp. i teor. fiz. 42 no-5:
1183-1185 MY 162. (MIRA 15:9)
1. Ind.titut yadernoy fiziki Moskovskogo gosudarstvennogo
universiteta. -
(Tin-Magnetic properties) (Quantum theory)

/V
zil j
of :,bczba,.l 4-" t...2
t,.Ic n,arc!st 0
ralu
fCC' Nr
to
no. 2(c) -.)C2 144-2-452
zb-,Ie- L: fe c I. in.
'n r. 0
tio;~ 1-6n, ;.~u ,I-arz
u 3 On, of 25 C-!:' v
in co--) - 1 0 r :, t
In tz, 30n cl!
'r n(c,:`
u '5
n.,, cC. :,'any
0 yj a in
Ot..
inu2
:.,.3 the n, -
G Ou-)s
'2a~ent
C r id + h and

"/05!"/62 '0~ VJ02/01 -'/053-
?.t.-c-aliarilies of ~..Osobauor -,noct~ ..... :3 10- A: ~)4
~,r. I.-_t'a of If to X. 7n media, c.a. In ctannifcr.~u-,,
L*-c ,~,,stzluer u,"fuct for
first 'The co..:_,Doition
-5
B2
.-il apectra of crystLllinc Sn(C h j and ita roll", ion in
6 5
azn~ of crystuiline Sn(C Lin! o-' -4-.c 2.j
2
j jl- t on ir. :1 ich 1 Droc t h anc on* ." c a! of :ha lz,*.a
in,lic,!te t".-t the zhane G: .~iu
5" a -4, r
C 1-
clos2j, -3 he tia n'.1clLu- I`- e e re fi,-.ures ~nd- 1 tz;Iji-
-,)CT.,TIG:' ; :nj-.itut fizi'-i
of Che.,zicall .-,hyji-cj of tac Aca~cmy of Scionc.-az
D -.3ril 12, lj62
Ca;:-, 21/2

3/056/62/043/003/009/063
B12,r'BI02
AUTHORS Alekseyevskiy, ff. Ye., Pam Zuy Kiyen) Shapiro- ) , V. C.,
Shpinell, V. S.-
-TTLE: Anisotropy of the 1,10"ssbauer effect in a ~-Sn single crystal
I -
P-ERIODICAL: Zhurnal experimentallnoy i teoreticheskoy fiziki, v. 43,
no. 3(9), 1962, 790 - 794
TEXT: The resonance absorption probability flof 25.8 kev r-quanta in white
tin ras studied at 770K and 2930K. The lamellar absorbers, about
57.5 mg/cm 2 thick, viere out out from fi-Sn single crystals in the (001),
(101) and (100) planes. The trial measurements were made with a poly-
crystalline thin foil. The tquantum sources, consisting of Sn 119M nuclei'
in SnO2 Sn 118 ; N5 mg/Cm2 thick)~vere irradiated in a reactor. In all
experiments the source was kept,at room temperature. The figure shows
three spectra taken at 770K under identical geometrical conditions.
Probably because of quadrupole interaction, the half-widths of the lines
observed are greater than the theoretical half-Aidths if allowance is
Card 1/3

S/056/'62/043/003/009/063
Anisotropy of the rylo"ssbauer... B125/BlO2
made for the effective thicknesses of absorber and source. The gradient
of the electric field in ~-Sn crystals is axisymmetrical in first approxima-
tion, the axis of symmetry being perpendicular to the (001) plane. The
components of the absorption spectrum for the (001), (101) and (100) planes
have the relative intensities a = 3, a = 9/7 and a - 3/5, aw+
W I ,(l+cos20), V, 2Q). W �3/2/'-1/23
+3/2 +1/2 "'-((5/3)-cos +J9 is the resonance absorption
probability of the il-quanta to the corresponding sublevel. 9 is the angle
between the symmetry axis of the crystal and the direction of the incident
r-quantum. The greater the quadrupole splitting and the smaller the
9ffective absorber thickness, the greater the shift of the absorption
maximum towards the more intense-component and the asymmetry of the line.
The resonance absorption probabilities at 770K are f,:f
100:f0,01 21olycryst
6
=.1:0.67:0.89, at 2930K, f :f There
100:f1,01 601:fpoly = 1:6.95:0.75:0.80.
are 1 figure and 3 tables.
ASSOCIATION: Institut yadernoy fiziki Moskovskogo gosudarstvennogo
universiteta (Institute of Nuclear Physics of the Moscow
Card 21/3 State University)

S/'056/62/0431/004/ 018/061
B1 02/13180
Ale~.santlrov, A. Yu., Delyar-in, N. N., Ilitrofanov'I
3hpin
T 7"T i, Ziwdru-~ole ~nterac.tion and isomeric shifts of 23-8-kev gamma;
t-.-.no'Ltj.on of jn119 nuclel.ts in organo-tin compounds
e I c DI I,: harnal ek-sperimentallnoy i teoreticheskoy fiziki, V. 43,
no, 400), 1962, 12i!2 1247
T~-'.~,Ts (,ontinutition of earlier studies (ZhETF., 42, 637, 1962; 43, 448,
11~62) 4.ie ",o'.5ssbauer resonance absorption spectra of 23.8-kLiv r-quanta
11-.1, -ork deals with the'effect-of substituting certain atomic
by 6
co~.D!~unds of the (C H ) SnX type, and SnX by othlers oil
Uow)~ in rir,~, 9 2 4
;-,hift 6, and the quadrupole interaction; X is an element or:
ded
It nto,,.-,s, n 2. The resonance absorption spectra were recor
vAth n) n absorber velocity was varied linearly with time and b)
onc of cl-nz~;'Lant velocity, the thicknesses varying from 30 - 100 mg/w2.
.The latLec -method yielded more accurate spectra since the device used had
-1 r d, 'i /
,
/ 4

interaction ...
61C) 5 6/6 2/04 3/004/018/061
B102/3180
-eLeot~v,.- -en.,,~t.~Ivitv I.o e-quanta 2
5 ME/= SnU 2 con taiMing
1130,1 -quantum 5~)iirce. The orEano-tin compounds investi-
h lc'i a!' 'ec ted the sha-pe of the spec trum. In !x11
'rept at roov,, tomperattirc ,Ind the nboorber at
:,F-I, tv ;jel- tiire, Tlne wilues obtained for S ancl for the quwIm-
c tti,i4- cc,,-,- I.rint a v,-iry re,~_ailarly for the compound3 for which the
alec tivit." t"::-- ~ r-,toms varies. Double 1)ond8, and also atoms
oc ron;:~ a tiv I ty no ' direc tly bon-ded wi th the tin a toms , v. ere
d a strong effect on the electric field stren[--th actin- on
ti--, can be ~i.uali.tatively explained by the violecular
structiirr,. fil-ures and 1 table.
6 U C 1.*.---., Lns-.itl-,.t yadiornoy 'Liziki -..oskovsl-,ogo gosudarstVennoEo uni-
1/,
verS4~ iota 'Institute of 24luclear Physics of Moscow State
Univer7ity). Institut neftekhimicheskogo sinteza Akademii
.33~R (institute of Petrochemical Synthesis of the
ikcl 1O-'T'3' -)f Sciences US;()
I c 2
"Cl

S/056/62/043/006/016/067
B102/B104
AUTHORS: Sorokin, A. A., Shtall, M. Z., Shpinell, V. S.
TITLE: The Zr'97 decay scheme
PERIODICAL: Zhurnal eksperimentallnoy i teoreticheskoy fiziki, v- 43,
no. 6(12), 1962, 2056-2o62
TEXT: It has been found previously (Ref. 1. Izv.AN SSSR, seriya fiz., 20,
913, 1956) that in the Zr97 decay, besides the 745-kev isomeric state
(T1/2 - 6o sec) of Nb97, several higher level's are excited with intensities
1rtrue) was measured in relation
to the abaorber,thickness d at 78, 293, 495, a-ad 645 0K. The straight lines
obtained were extrapolated to zero thicknesses, thus yielding the value of
['extr . The line rtrue (d) calculated for room temperature intersects with
Card 1/3

S/056/63/044/002/001/065
DePendence of the 7-quantum ... B102/B186
the extrapolated measured lines for 78 and 2930K at zero thickness. The
maximum absorption Eo - [N(00) - N(o)]/14(oo) was also measured as a
f"netion of d a'. room temperature. From these measurements the absorption
probability fl (without recoil) was determined. First, the case is
considered that line broadening is caused by the doublet structure of
e;,--ission and absorption lines with the distances AS and 6 A between their
components. These distances were calculated from integrating rextr' Also
the dependence of F-0 on the effective absorber thickness CA - n6ofl was
calculated for various A A. This curve calculated for LA - 3.2 coincides
with the experimental one for f I - 0.50 and af - 0-42i af denotes the
fraction of tlie total counting rate which is due to y-quantum emission
without recoil. The values of fl obtained by this method are denoted by f
ii'hen splitting ;a taken into account, the EO (d) curve obtained does
not corr,--spond with the measured one. Then the case is considered of
emission and absorption lines being broadened, their Lorentz shape however,
being retained. T~e Lorentz widths are PS1rA > rtrue- In this case the
Card 2/3

S/056/63/044/002/001/065
Dependei,ce of the y-quantum B102,,B166
results (f" and P -11 P closely with the experiments. The line
II A - A 'true
shift ---iith temperature, observed at T -'3000 K, is weakly nonlinear; at
T,~,30QOK it is linear. This shift is attributed to a second-order
Doppler effect. Results:
T, 0K re.tr' mm/sec, 13 f
A
78 1,29 3,2 0 62
0 0
1 )70 2,1
293 1,30 3,3 0,50 0,56 1 2,1
495 1,43 4,1 0,42
a 0,50
1 2,5
645 1,53 1 4,5 0,35 0,43 2,8
There are 3 figures and 1 table.
ASSOCIATION: Institut yadernoy fiziki lAoskovskogo gosudarstvennogo uni-
versiteta (Institute of N uclear Phys ics of the Moscow State
University)
SUBMITTED: June 8, 1962 (initially)# October 1, 1962:(after revision)
Card 313
7

_7~
L_1364A43---:~:_ .4D
S1005616310"100011W~
ACCESSfON NR: M3003117
Viskov A.
AUTHOR: Fam Zui Kbiyen; ghpinelt', V. -S,; Venevtaev, Yu :N.
Elump strontium, and calcium
TITLE: Resonance absorption of Gemma in b
stannates
17 ~i
SOURCE: Zhurnal eksper,.i teor. fiziki', v. "I no. 6) 1963, l8U-i8qs
ns ium
TOPIC TAGS: resonance absorption of.photo , recoilles'absorptiofi, bar
strontium stannate, calcium stannate, dielectric:loroperties
stannate,
ABSTRACT! The parameters of resonance absorption of the.23.8-keV Game. quants.
emitted by Sn sup 119* were measured over,the temperature range from 78 to,
1020 OK for. the stannates of-barium, strontium, and.calcium, which allhave
FV"Ovskite structure. This 'is a continuation of.A similar investigation made,on-
tin oxide (ZhETF v- "1 393, 1963)1.an4 is aimed at ch%cking the possible
difference in the distribution of internal fields in the stannates and in the
perovskite ferro-and antiferroelectrics, for which purpose study of the gamma-ray--
resonance absorption properties yields independent information'on the field
gradients and position of the tin ions. The temperature dependences of the
probability for recoi" ess absorption and of, the position of the resonance were
Card 1/2_

L 13647-63, ___FQaW/JjD
ACCESSION NR; AP3003256 S/0056/63/046/006/21W/2183
Fam*Zui Xhiyen-, Viskov, A. S'
AUTHOR -S. Venevtsevi Y. u. VN
ftinell, V.
TITLE! Abrupt change in probability of the Mossbauer effect at the phase
transition in ferroelectries
SOURCE: Zhurnal eksper. 1. teor. fizi.ki, v. 44, no. 6, 11963, 2182-2183
TOPIC TAGS: Mossbauer effect,, phase transitions in ferroelectrics, first order.-
transition, resonance gamma~ray absorptioni anomalous changes
ABSTRACT- An attempt was made to detect ancmalous changes of the parameters for
resonance^ gapma-ray absorption (such as probability of recoilless-resonance
absorption or shift of resonance energy) accompanying a ferroelectric phase
transition in the series of solid solutions of bismuth ferrite in- strontium
stannate. The Sn sup 119* contained in tin oxide-was used as a source. An
_y~for recioilless-resonance abs
abrupt change in the probabilit orption(fl) ww
observed and was attributed to the transition of - the solid solutiou from the
paraelectric to the ferroelectric state; this was confirmed by x-ray photographs.
The widths of the transition regions reach sizeable waues and increase with the
strontium-stannete con-tent. The phenomenon is explained from the thermodynamic
point of view as bei.ng due to a discontinuous decrease in the part of theinternal*,
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AUTTIORS: Aleksandrov, A. Yu., Delyagin, N.N., Mitrofanovq K.P.9
Polak*, L.S., Shpinell, V.S.
TITLE: Inves~igation of organo-tin compounds by MBsebauer resonance
absorption of gamma quanta
PERIODICAL: Akademiya nauk SSSR. - Doklady, v. 148, no. 1, 1963, 126-128
V
119
TEXT: The 23.8 kev gamma absorption spectra by Sn nuclei were in-
vestigated for 22 or6ano-tin compounds. Sn119mo was used as gamma
2
source, and the absorbers were cooled ib nitrogen temperature. The
isomeric shift 6 and the amount 8 of the quadrupole splitting were
measured. Results: (1) In the compounds SnR 41 -where R = C2H5Y COP
C3H71 Q4 H9, or CH,CH2CN, 6 was-ul.3 mm/sec, corresponding to the electron
density caus'ed'bY 4 Sn-C bonds on the Sn nucleus. The atoms not bound to
Sn had no effect on 6. (2) In the compounds (C 4H9)2 CnH2n+1C00)2V
n 7, or 17, 6 was 1.45�0.10 mm/sec, and j!Nwas 3-4~tO.20 mm/sec. n
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Investigation of organo-tin compoundo ... B1O1/B186
had no effect on the electron distribution in the Sn-0 bond. (3) The
highly electronegative chlorine affected 6, even if it was not bound to Sn.
Data found for (C 4H 9)2 Sn (CH2ClCOO)2- 6 = 1.6oto.io, 8 = 3.65�0.10, and for
(C4H 9)2 Sn(CC1 3COOH )2: 5 = 1.6540-10, 8 = 3.80�0.10. (4) For
FSn(C11 CH and H the doublet formed by quadrupole inter-
2 2CN)3 (C2 5)3SnOH'
action was found to be asymmetrio. It is assumed~ that the quadrupole,
interaction is accompanied by a ma~n;atic ifiterabtion affected by MI. If
an internal magnetic field exists in the molecule perpendicularly to the
electric field the component of the quadrupole splitting is affected by
whether the transition occurs from the in = � 3/2 or from the m 11/2
sublevel. There are 1 figure and 1 table.
ASSOCIATION: Institut neftekhimicheakogo s inteza Akademii nauk SSSR
(Institute of Petrochemical Synthesis of the Academy of
Sciences USSR); Institut yadernoy fiziki Moskovskogo
gosudarstvennogo universiteta im. M.V. Lomonosova (Institute
of. Nuclear Physics of the Moscow State University imeni
M.V. Lomonosov)
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