SCIENTIFIC ABSTRACT GROSHEV, L.V. - GROSHEV, L.V.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000517020018-7
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: July 27, 2000
• Sequence Number: 18
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

I -
, I ~, - i ! W., , ,
I I ",- - . , . )
"~Iow latter ir- orgruilzed," Sputnik Agitatoral P-145, Ilk:, 1-'~, PT-, "
- I

m T V I-T2
"Penetrut*nt! (Atmoopherlc) Showerc In Cosm' Rsiy~," The Physical Review,
V ol 1103. 5-6, pp (In Englich available at 2attelle Memorial Inctitute).
"T 4
Die tamiber ul" -,uln.~--idences Letween cowiter t'-nyc armn~-,ed
wa-,- ecrmAired with that when they were url-anged mc, above the (Al.er, r.-l fou:il tc,
be r,,,,Iy rflbout 1/5. The dlLfference, however, could not be acillribed cnt~rcly to hicavily
irinizing partiQles, tu; a ssubsULntial proportion of' the vert!cal rema!ned
when twel*;e cm, of Pb Is interposed, indicating penetrating (prolviviy ~:-.eson) Ellowers.
These ohowers were produced in the atmonphere, as the uppi-ritut-, ~mr, ek'le~~tively In the
open air, an (I were ahout twi.ce as frequent no Augei, chi-lWeIT IT4 i.1111;-.111v 711. 14irtAcle.;
each i,.,rj -.M~- tray, 50 cm. arjnrt. The mechanioi:l Or Production A* these ,;,Iiower[; i-~;
c u s s ed. "

r
; 'P~14 -1;", ~ I Wftulv , -' . , LOWIIHLN , V. I.. , li; P ;.,; '' * I I
, ~ . -.~ . .1, 4 , I . . . t ~ i , , , ~ ~ . ., ', I., I ~ I . 11 . I
Cojjr:~e, Vol. 11 (Electricity, OptLes, 'N."ClIettv blliaistry
of 1,?,-gher Education, of U. S. S. R., Moscow, 10147, (PAPAIE~=, N. D., Editor).

IIIJRCISlOl~ L.
Ussrvrhysics
Gazuna 'Lays
Nuclea.r Physics
Nov 1947
"Possible Vethod for Investigating the Selective Absorption of GAmma 4ays by Atom Nuclei,"
1. Fiarit, L. Gro3hev, M. Pedgoretskiyo -hysics Institute imeni. P. N. Lebed-~v, AC-ndemy of
Sciences of the USSR, 2 pp
S"I, L,
"Dokf.Ak Nauk" Vol LVIII, No 6 -
An investigation of the selective absorption of gamm rays cnn give wcrth-while Information
on the plane of the ntomic nucleus. Authors attempt to show that it Is possible to study
tile selective absorption of gamma. rays by the so-cnlled self-indicator method, widely
used in nuclear physics. Authors also explain the possibility of measurements of the
width of lines for the resonance transfer G2- Submitted by S. 1. Vavilov 5 Jun 1947
PA 36T81

MR/0"Iser fte - asimma News Feb 1947
Nuclear Phys - Impact, Ileetrmic
.v!And&W Distribution of Ilectranic Pairs Produced t7
,Y.Raye of TbC," L. V. Groshey, 1. M. Frank, Phys Inst
'
f;:f P. 1. Lebedev, Aced Sol WSH, 2j pp
*Zhur. Akmper I Tecret 71 z" Vol IVII, No 2
17-39
Bbows that dependence of d1strIbut1m of angles be-
tvem oamponente of pairs rormed. by Y'rays an the
atamlo number of the irradiated substance can difrerp
dependiM on method or pair registratlan mplcUred. A
result of this, the difference In results obtained
with use of the Wilson obamber and the counters does
not lead to cmtreAletim.
4M
57T70

ILL SkCtCij(.1V, on
Editor) GorudarrtvcnjjL-,c U~qjj
W ,
Htl';4;I L . V -
PHASE I TREASUIV, ISLAND BIBLICIMPHICAL REPORT AID 679 1
BOOK call No - : r''IC 787.i6v4
Authors: VMLER, V. I.; OROSHEV, L. V.; ISAYEV, B. M.
Full Title: IONMITION METHODS OF RADIATION ANALYSIS
Transliterated Title: Ionizatsionnyye metody issledovaniya izlucheniy
PUBLISHING DATA
Originating Agency: None
Publishing House: State Publishing House of Technical and Theoretical Literature
("Gostekhizdat")
Date: 1949 No. pp.: 424 No. of copies; 5,000
Editorial Staff: None
PURPOSE: The book is intended for a wide range of scientific workers in various fields
and for graduate students and teachers.
TEXT DATA
Coverage: Part I of this work (p. 9-162) discusses ionization chambers
for alpha, beta, gamma radiation for C08Mic rays and fast neutrons, as well as ingmilse
chambers. In part II (p-163-423i counters for charged particles are examined and the
theories of their operation and of corrections for individual counters are given.
Proportional counters, including those for fast particles and neutrons, and self-extinguish-
ing and non self-extinguishing counters are examined in detaiL. New types of counters
and different modes of operation

aw!
'27, 1:1119

1113(ZHEX) V.,
"Some Par-ticular.1tiec in the Distrib ution Of' Level~, in Atomi: Nu--ic~
D,Dr*-!-a,,iy Mmdej.,ill Nauk SSSR, 1)h~), Val. k~'6, No. 6, pp Institut
iv,ienit P. U. Lubcdeva Akivit.-ml I Nauk SSS10 -
"Tabulatlcn of the Immm datn of' nuclear energy levelc Lej ,,~ uric c-unc1uticri that, by
and large, and with the possible exclurjon Of too-111:;ht ejc,,-,ejjt-, t1he 'st e..-*.cJ'ted level
lieo tit about 800-1000 e. Irv. in even nuclei (,with even nos. of protcns and of neutrons),
ond r.,nch lower, of at. no. Z). Deviations may be due partly to wicertaintics of the
data: In 1-,&ht elements, low levels my be difficult to detect owing, to the very low
pmbability of internal Y -conversion. If' the conclusion is vallid, it woull follow that
the position of the excited nuclear level Is linked vith the nuclear momerrit, which is an
odd multiple of' h/4 11 In odd nuclei, and zero In even nuclei. Actually, even nuclei
of tile U-Ra radioactive disintegration series hnve energy le-;els of the order of 1000Y
-whereas odd nuclei of the Th family have levels of the order oil' IJ,'Cl. Inasmuch as Iso-
meric nuclear states have, mostly, low excitation energies, they will, for the mozt rart,
belong to the class of odd nuclei with even M but odd Z. Actually, of the kno'-M 45
nuclear isomers, only 2 (GJ2
, 5 X 10-7 sec., 720 e. 'Kv., tuid 21-0 e. kv.) may
belong to tile cluru of even nuclei; 35 have odd M, tit arLAtrary Z, and S even M, with odd
Z. The conclusion that, in nuclei of not too low 7, the lst e.~,:clted level, lkleo M& If
the nuclear moment ~~c zero, arld low 11' tile mome.A 0, is -":i -a,2c,~rJ with Mattlauch's,
(over)

are ~,i~ .'it) ,
CL I . .1~
tjLLit JUIVI.' !-' !-
.OL.nrl~Lngl (C. A. 3()) ." - c) i, tlic i.rt irt, 'ri .1' 1
tile ex.-.1tatlull ellurg.1 e I I - -
1 z f;Y1 " E! I . - . I ,
gmat.er tiuin ut 111.01 Z.fv

I t L -2-4 -1. L a N P Q _11 0 A I I
Vo
1761 Measurewmal al the Pi~rt~ 0 ~oowclrum al TkB by
41 1" MMhIW a Double 0 loped tom -
*I C"W So
21 Shavivalor. Duk
L. V.
Lon 5 i-OW19491(to li;Wl". fv -00
A proceftr* is sliown for the am yals of a complex 0
0 8: spectrusix from a transformation in wikkk the revollisol nuclei 0
:0 4: occuff several exclied le"Is. Tlor usual 0-Y colacitiesco
methmi. convemew for 110 case d Owl am excited onste. 0
0 0 #1 bpi" Inapplicable here. the $*VMS OmPi"" 0-0 COLACI- .00
draros between a certain lodersal conversion wW low cor-
go respond" St ercey. WA Mosto some consisted of a 3 m "
metal pope a" a counter at each end; the rad$aWlvqp source
960 Occupi" tm uddille ad too POW. and the two Opposite electron
00,3 beams were faceasoil upon the counters by man" of two
age
99,0 madmotic lesson. On commer. throwo a Ilmod adjumment
004 of it Wes, received the conversion electrons. alkild Into the goo
a&&:. by varylinit Its I*x*~ fleM. ducal electrons of dWoreed see
parts d the oppr1rus were Aive . A froolmoncy curve of 2 see
0 low coinclilwates was thise aliftimed anil a" Iloes convert
Into a Feral curve d too It"I le"Olopel". TIO "AW
was wand for the Meradmatloo of the partial 0 spectrum of goo
tow, transformation TO - T%C whick correspeaft to a tranal.
lion onto the *wK" Ir"t 238 bev; the y Quentin emitted are
Irdefteely converted. TWo source employed was a pMSPItate
id TM9 - C - C'). The Fermi greph obtalmd to a x4ralol 110
ion* Intorwretinog tow ~wor" axis si 340 kvv.
Rlt, A Is ItA -CIALLV461CAt 1.111041641 CLAWFKATION
I Ion; I N.. wee
U 0 IV 10 111*4 f 1, 00
.0 0 IT to MO do pit a W a - -
0 it of a ft It a so
0 010 0 0 0 0 go 0 Goo 00000034 ;
go 66666660666646066;6

iomzAnoN mmons or INVESTIGATION.
L. Grosher, fad U. lasev. Moncow-Uningrad,
(In Russian) (Book on didplay at Genave
Cotdcreace)
part 1, Ionization tham"rit for a. and cosmic
radiattuns, tbambers for neutrons and Imise chambers.
Part n. Counters of ebArC#d particles, the theory of tbair
operation and corrections for separAte OfflAntete, PLQV=Z.-
i1poat egunlatL(for last partJoles sad amutrnnx~ and counters
with Individual discharges (fion- or If- eiXagut *bed nnd self-
,,/extinguished). (publisher's note)

- 7J, - ' - 71 T - r -, - - -'7 't '111ki I ; 1. 1~1. I , .-I .
, J , . , y '~. -1-1.11 . .
I'lonizak,I-onal eictho]3 for Injostiv,tiolls f Aakj atiuns," -'~1aVTQIi'r-.-fiZT-,t., 1,Ain
I I
i olv-rai ',A:: . In : "ollse, 2nd e~ ition, ];'!-, 1, , 1952.
~ I . . . 1 4
1 -.1 f

BOOK Ca.. No.s QC475.G7
Authors GroaheT- and Shapiro, I.S.
Fidl tit1-e`7-6F-W-TItO6C0Pr OF ATOM NUCLEI
Transliterated Titles Spektrookopiia atomnykh iader.
Publishing Data
Originating Agency% None.
Publishing Houses State Publishing House of-Technical-Theoretical Literature.
Moacove
Date: 1952 No, pp.: 440 No. of copies; 6#000
Editorial Staff i
Editor: None. Tech. Ed.: None.
F.d.-in-Chief: gone. Appraiser* None.
Text Data
Coverage; The scope of the work is limited to radioactive nuclei and states of
relatively low excitement in which nuclei form from the disintegration of
alpha or beta. The work treats general problems of atom nuclei spectro-
scopy and special problems involved in gama, alpha, and beta spectroscopy.
Methods of analysis and instruments are described. The material on methods
a~pplies to the analysis of radioactive radiation as wall as to radiation
of various atomic reactions. Subject index. 38 Tables. 233 Diagrams.
Appendices,
?izrposes The main purpose of the work is to characterize the main ideas and research
trends in atom nuclei spectroscopy; alsop to give data on the most impor-
tant results of recent studies in the field.
FacIlities'. None.
ii. R729stea k Slavic Referenoes3 Of 288 references, 76 are Russian.
A7912able; Library of Congress.

1, 11, :
T V, . ; B(V " FrYdir-,V , I . ':U I I ' I" Al' ' ' " 'C ' ' ' " . . - -7 ~: , ~ ~- V ~ .
GR W ; il, v , - . I I . ., . . I . , , , ~ A:% , ", 1 .1 , 1 . .
"Measuring the Activity of Beta and Garm. Radlatior Sources)" !-,(-Iitel'ctvo
AlrUademl L Nittil-, OSSR , MOOWOWP7171-11 -,*.-, 471 TFI) .

GROSHEVj L.V.; AD UASEVICH# B.P.; DEMIDOV, I.M.
[Investigation of gama rs7s emitted by nuclei in the capture of
tbermal neutronal Issledovanie gamma-luchei, ispuakaexvkb
iadraml pri sakbyate toplMkb rei-tronov. Moskvap 1955 36
(~g l4t7~*
(Noutrono-Capture) (Gama rayB)
(Nuclei, Atomic)

he mult"'a Atton of neutrons In urmnlinn-Irrilghl't'r
R I I, ,
! remil, 14, It ~Zgjjgv .Colwrit, anti 1. Xt. Frank.
~Al ZIMSY4 Akan. AOMA PO Mismanim
Alommoll Emergii. Zajetlaniw Old,& Pis, Mal. Xjmj: qK,,A-v
3-18(Lngfisli gummary. 19-20); cf. folIgwing 3 ahilrarti.
-'FIIC PIIY!O- U51)(Vt (If 11010011 111 [tit ij)lkel I It til III A hCI(J`0-
geneow U-paphile system wai oll-cii-cd from t1w citlal.
anti theoretical stAudimint. TIM CILIA'S. Vrl~tC CAlfittl Wit by
the elIX)nentiAl Illethotl by using Various C.11CIS3. (A U and
for various lemp. ctiudillisni,4. The valu4:,i ,f the thcristal
imutrun ulilization cow,., 0, ainj of tt-c
werv deld., and the effect tf the -,%,: tai, mhl -f the water
),;t:kri "folind ths, %lugoo wis mij,14,1- J. 16-mo Ix.14IL
OJSR

the -ni -i-fizz
..... will, Ily
I bT we pusm mill
1, Komi -to, ., I ~ K. t), To 4 ov. .. I
I Al. alld 1. V. Slitta=111, 1.
fel "!"!P' I
)kJ
linerjoi, Z,jjcdj);iyj IV;, - all,
't.
21 rAKI:'1191i'Al sill"I'larY. 61 -2).-'Ific buck-lifig, V, ill,-
multijil Ic" "Oll f'tCt"r k- -0111 tile tltVflllUt IttiliZA6011 fjVtor
0 ill u U-griphite 1wictogeovoll, sy.1tclil With ORA. billit
diam. ISVI~' 111VvItfigatt-ti as a fiII14:1joll of tile U C:t)llcl". C
IvIded pti-all of IN) X IN) X 4~1() Cill. The Ctilli-
distAlit chillmdtill list- graphilecould Iw fille'l either oill, ty
.31tig-6 Of grapilife toils. C ill ow prislit was V'irictt by C-
moving Illmll 110111 Ilo- cleallot I.I. 'lit J1. I .... ~o If Nfl
'J.'Ildifig Io it lay, 0 A-111 ji
ii IIJV illLilrary 11111t. Al-lit 11.111 If 0".
Lur,kr dialls. I- Ihm ~m.wil tI,v %hig.; by
Illovilly tlj,- S111v
w. tit,
tif" I C.-ULI I- III. v-do- V and k w,I, I, i.1
att-rdloic Ill tile 4.311-11coli:11 Illuillo,j; 1.411 11.1.1 .4 "..1%.
C " It-%. --ill-I WIAV 1) ;it (: ~. W:1, jo.1 I ;.I (' - I.V. 0 WV.j.; .I,.
taim-41 (toill 111c.t.mit, Ilmlit:'. 11VIA
villfiFt fi'lid h-um-FuAi5i. -Thn-
LJ_! Alm 41 mill thr muh Uf Ilit 111111AIliull thtOgY. b/# 6A ISSIVAI
I %twtimt '4 C; by CX(CAIK-Litilig to C - 1) h C034 Ix: Split inio,
eloj)irical li't"Is mr, JIM 'p. 11 6 tile 110 . of 11'.ar"llf
guller-t(A Im-f theillial licutfoll C.Ipturcd; it is 1.31 .1 IJAY-1,
It, is the lit"kit'llity (A fiii,,ik neuirons m0ting the 0- sm.d.
ellergy l'iti"ll. Thus I - '0 is tile lu'liatioll ';% U,
pattLilly c,Iitvjwtt,.ttI:d by epicadittiunt til"i ti-w-ii, It iN ;A
1111c.ir funciwit of C. flotla air tapl, atO IIAJ gaii~ %"c
1rit:d G,r o-litig. At C < V5 11:0 has a urg. OTv,t oil k
wid ;it > 1.5 .4 111". Oit.; tile lit gap illfluell, vl a III'mily.
W's 6,11b K.111 '11'cI% If ait or [III) %vctc sill;Stl't thall alstic-
ilm(M ft-,Ill Oc 0,111c,tiar) diffil'i"ll 110. ~'Ff; 1hii I, 'imply
t lit,

1
Pt by sow,
k^ lu
rsOd*,!jP
and A
.,
sessiYa 0XV01
Vd. Film-
04

Y
WO
y;
270_
t
loss
~
N 4
p
~a
rW&
a
, am
UMM
bl~
N-93).--The re-
.
f
w
~
sults emuirments im Ifen'fof the -y-(ay spectra emitted
by C , fig, and Ph i nder neuttun irradimion in the
thermal column of the `~FT reactor. The ?-ray spectra
Wc1V ="isureft in P aagnefic spectrometer, where the
Compton ctce.# - Otuduced In a thin radiator were KKtEd
according to their energy. This instrument covered the
energy range from 0.3 to 12 rn.e.v. A large no. of peaks
corresponding to monnehromatic -Y-rays were dc1ccted in
the -,-ray spectra of Cd, Sm, and fig. The c,,rrrsponding
-rray energies and the intensities expressed in ph(jtnns/
,eutron capture were deEd. nere wii satkfarivry agree-
r -at with the values tA other authti,3. i-I)tc-iY schemes
are drawn for SmsM, Cd'", and HS26. The -r-ray spectrum
of Ph wa-s mmurrd after thermal neutron capture. thus one
grc * state tratt-ution was Intind both for Pbal and Pit"..
Ilete-i "0. aweeme t *Idt data by other authan is motip
(atiory. The neutron binding e" I detd. as 13.00 +
"
%1
0.03 to.cm. for Susts and 9.03 10
1
. for llgg*. with
angular moments of the cnmpd. nuclei of 0-- for ligm
and 4-- for Smul, thus the ground state spin for Sm'*
must be 7/2-, h1ultip)[ar orders and pArtial widthi have
liten dctd. for a no. of Cd, Sm, and fig t1ansitioul, and the
Fmlltl widths are compart4l with those obtained accotding
Wcisskopf (CA 45 10073C) 30 references
1 .2 c I I _`

.-M C ;13
A` Pays Ev-11tted by the N1.1"Iel, I'll CytpWrI. ;A, ThQ2-,;W1l Iftletrun:;,"
In"erriatifinal CGrifercn--c on the Periceful U.,;er of' Atom-lc Enf,~rgy, 1,Y-55, A/Conf.
(USSR). Trauslaticin avalklable at Battelle MemorLkAi Inst"tute.
Ther,,-;al neutron capture gamma radiation from nuclel haw. livvru.A,1~7.ited with the aid of a
Compton-clectron magnetic spectrometer. The LirLmple wider -'ras irradiated
vith ther.,fri.1 neutron flux from the RTF reactor. Spectra of beryllium, sodi-luz, sulphur and
chlorine gwr:zma rays have been rrzear~urcd in the energy range from 0.,~~ to 10 Mev. The treat-
meat of results obtained niade it possible to deduce the Intensr tLev. (if' some spectril I ines
In term-c uf photono per neutrun capture. For a nwrber or ti-cr-,sitions experimental radia-
probabilitics were compared with thegretical ne.,; calculated from W, isol-opf Is formulas.
Splri,-, ~L)f come of' the lower levej,., 01, cl3b and r1r," were "ietex-milled.

ma/ Physics Gamma-rays
Card 1/2 1 Pub. 22 - 11/60
Authors s Groshey, L. Ve
TIUS t GA--rays Of tbe.capture of thermal neutrons and a structure of
atomic nuclt'i
NVICUU1 I Dok. AN MM 100A- 651-654, Fab 1. 1955
Abstract S A now method of studying spectra of I rays originating at a capture
of therzutl neutrons by atomic nuclei is introduced. A quantity
at (rZnjhjQ is suggested to be used for this purpose. The symbols
are an followso ni in the number of photona of the hvi energy emanated
during the capture of a hundred thermal neutrons andF__ is the binding
energy of a neutron in the nucleus. In order that the"Oprevious data 1jan
be used for the above formula, it in suggested that only those photonen
be counted the binaing energy of which exceeds a certain arbitr ary
InAtitution i Aced. of Somo.USSR, The Po No Lebedtv Physical Institute
Primented by i Academician D. Vo Skobelltsyn, October 9. 1954

Periodical f Dok, AN SMI 100A# 631-654m Fab 1. 1955
Card 2/2 :s Pub. 22 ii/6o
Absftatt I quanti 1. a* hifj7/ and to count a qwftntityCq
on
vhere 4t~1121) in the number of photons of the energy Eh%,. Five USA
references (1950-1953). Diagrams.

VSSR/fiu:l,c~ar Ptyz,' . s - S* r1;- -,u,: ;A-,t Fr,
Abet. j~~urnal: Fe'-~Ya-. Zr. r No '.2;.
Alilth,_r: Ad,*.Y-aliv_!.:-Ii., B. P.., Gn,oh-v.~ L, V., A. M_ Lutq~!rkr,, V. M.
_.n 9'. N
Ti~~i?. .--.-.v Fa, n : r Gqirma !'ct-tl Fff.'j tt~~. '~;U-_'.
*,ag Dvr~ g C it
OrIgInal At-Tn. Eierg,'.ya, 1956, No 2, ?8-;'9
Abst.ract: A magn~,;,_.c fl-r ana:pais tf is uo-d t."
measure the ard gawna rayr, t~f CS, 14',
and K when *1,~-.y --,apktr,~ T h i L, p ~c !, ra 1.4~, g,%=_pa rdirq ve
9',.id'Fd 4-n the F~r.,c!zg~y fi:,.z!rval o.2r,_12 Yt;nr. Tti of ttt-7 a I~xe.
g_ Mna q
ar,! glIven In -a ye'r 10~) r,~-ulr-_n captt-rep. Thp poss-lble sclt,~-=Ps Cf ga=a
tranBit~lis _'n th,.6 Ca-41, Il
NI( a11.1 K40 ~aVp.
op

VSSR/~U"clesr Physie's Structure and Properties of Nuclei
Ab3t Jourual I Itolovat Zhur - Ylzlka, No 12, 1956, 34001
Author : Ad'yasevich, B. P., Groshe Demidov, A. U.
Institution : None
C-4
Title : Investigation of Gamma Rays Emitted by Nuclei of Titanium, iron,
and Silicon during Capture of Thermal Neutrons
Original
Periodical : Atom. energlys, 1956, No 2, 40-49
Abstract t A magnetic spectrometer which analyzes Compton electrons was used
to measure the energies and intensities of gamma rays occurring
during tho capture of thermal neutrons in Ti, Fe, and Si. The
gamma ray spectra were studied in the energy interval between
0.25 and 12 Nev. The intensities of the gamma rays are expressed
in numbers of gamma quanta/100 captures of neutrons. Possible
49 57
schemes of gamma transitions in the nuclei of T1 re and
Si29 have been compiled,
Card 1/1

710
INVUTIGATION OF 4&MV&-A&MMITTED BY NUCLEI
OF CALCMU, NICKEL, AND POTASSIUM ON CAPTIMING
-
-
tut
A. M. Demidov Mid V. N.
, ,let J.
Atdiwvd
r 171-615137.7
The energloo and intoolitles of y rays emitted by nuclei
of calcium, tackel and potsesturn when they capture thertual
neutrons were inessured by a m"netic $Dgc=mttor which
&Wyzos the Cotnpion olootrons, The I-ray spocirit werv
OW1611 14 tbA energy Interval 0.25 to It Mow. The latonal-
U44 of y ray are "Preased ta ortus of the atunber of y
quMts wWfte4 per 108 vtoutran& a 4pbarod, Ible y-
transition dispams have been ooWrwW for C01, Mim.
-el-MILK-0 ancloi. The present work An a coca~u-atlon of
Me Ivreattgatim of v rays owItted by nuclei on capturing
tbernW nwArme which is being carried out with tbA Jill
of tbe Aza&my of ficlowee at the VM. ThG ex-

_
_
+'j
S2
=szunm*.t and the
o1
periosental ca'atiz.
spoutrometer lix" all been described before. Results are
givvn as the lovesUption of v rays from the nuclei of cal-
0.1
alum. WOW VA Potassium. 'tauth)
IV

I
'OF QAMbdA-RAYb EMITTED BY NUCLTJ
VESTIGATION
IN
Of TtTANtUM, [RON, AND SILICON ON CAPfUltiMi

and A I
,M. ~Wy. 1..VLi:t

when
The enorgias aad 1314MIlles at V rays arlaing
thermal neutrons Are eapturod In titanium, Iron and $11tclot
were Mossureil by a mj"Ig sy"trilWgUl which uAlyted
the Comptonaloalhum. The r-ray spaotra orvro studW in
the enerri Wernl 6.94 to 12 Mev. The ietenwitles of the I
rays are wIpressed In terms of the number at y quants por
100 neutron captures. Possible -y-traultion achemes have
been co"inteted for_je, tell and St" nuclcl. Tte pre sent
work Is a continuation of the Audy of y spectra, eviltIM by
nuclei after capturing thermal heutroAq. carrivJ (xit with tio
aid of a inagAt4lo y xpoctromttrr. In 1he pr, -nt paj~w Aj e
gWo the results of (fia iu(moremrnit 411 thk: P~~( n ond a
the laten5itlas of y rays emitted by the nuclei 4 titanium,
Iron and silicon. The maitarament of the lr"uJty Wanbef
of y quanta per oaptars) was carried " by means of nor-
mxllslng The radistad energy to the binding energy of the
in the lander Investivoon. (Auth)

JOLIOT-CURIN, Frederic; SKONLITSYN, D.Y., akedemik, otvetstvevnyy radaktor-,
TANHO I.Yee, redaktor; DZHXIAPOV, B.S., redektor; MNK. I.K..
r9d&ktor,-eqHOSE3TJ#
redaktor; SMIMVA, G.N.. rodaktar; BARIT.
I.Ya, eVf7o;r---1 ida tell a tva; RYND=MSKATA. 0.M., redaktar . izda tell StTa;
ZELINKOVA, Te.T., takhnicheskiy redaktor; MAZARTAN, L.V., takhnichookiy
redaktor
[Selected works. Work written in collaboration with Irene Joiot-Curts]
Isbramrqs trudy. Prederik t Iron Sholio-Kiuri. SoTmetnys tmAy.
NomirTal lad-vo Akadmil nauk SSSR, 1957. 561 p. NLRA 10:2)
(Radioactivity)

AUTHOR: BEREZIN,V.S., GROSHEV,L.V., DIKAREV,V.S., PA - 2254
EGIAZAROV,M.B.9-iO-R-O-lET-,-E-.N-, MADEEV,V.G., NIKOLEYEV,YU.G.
TITLE: The Spatial Distribution of the Folws of ~ -Rays and of Slowed-
down Neutrons in the Graphite Column of a Physioal-Teohnical
Reactor. (Prostranstvennoye razpredeleniye potokov ~% -luohey i
zamedlyayu scohikh neytronov v grafitovoy kolonne reaktors, RFT,
Russian).
PERIODICALt Atomnaia Energiia, 1957, Vol 29 Nr 2, pp 118 - 122 (U.S.S.R.)
ABSTRACTs This distribution was investigated in spring 1953. The results
obtained are suited also as experimental material for controlling
the theory as well as for the computation of the spatial dis-
tribution of -rays and slowed down neutrons.
ExperimentAl Ltailat The thermal column W graphite) of this
reactor has a cross section of 100 x 100 am and a length of
200 am. This column is separated from the active zone of the ap-
paratus by an 80 cm thick graphite reflector and by a 45 on thick
layer of air and the sidewalls are surrounded by concrete. An
experimental channel leads along the axis of the colilmn, which
is filled with graphite rods. The indicators were irradiated in
the cavities of these graphite rods. The development of the
Card 1/3 density of thermal neutrons in graphite was measured by a dys-

PA - 2254
The Spatial Distribution of the Flows of g -Rays and of Slowed-
down Neutrons in the Graphite Column of a Physical-Technioal
Reactor.
prosium. indicator. As an indicator of the resonance neutrons#
Indium surrounded by cadmium, gold and Iodine were used.
Measurements were carried out when reactor operation had become
steady. Measuring results of the spatial dispersion of the neutron
fluxes of different energies In graphite are shown in form of
diagrams. The neutron flux is diminished much more at the be-
ginning of the thermal column than at its end. The curves of the
reduction of the neutron fluxes change noticeably at a distance
of from 160 to 160 am. The fluxes of the resonance neutrons
and of the fast neutrons are exponentially attenuated. The course
of the curve of the density of thermal neutrons is discribed
quite accurately by an exponential relation with the relaxation
length L - 21,6 + 0,1 cm. Also the decrease of the dosage of
,r -rays in a gra7phite column in shown in a diagram.
Discussion of the resultst In the asymptotic domain spatial and
energy distribution of the slowed down neutrons is determined
by that energy which corresponds to maximum scattering length.
At great distances ( > 180 am) the resonance neutrons are
Card 2/3 probably produced by penetrating of fast neutrons. The spatial

PA - 2254
The Spatial Distribution of the Flows of ir -Rays and of Slowed
down Neutrons in the Graphite Column of a Physical-Teohnical
Reactor.
ASSOCIATIONs
PRESENTED BYi
SUBMITTEDs
AVAILABLEi
distribution of fast neutrons then determines the spatial dis-
tribution of resonance neutrons. The experimental results ob-
tained here are essentially a confirmation of the theory.
(5 illustrations).
Not given.
17-5-1956.
Library of Congress.
Card 3/3

AUTHOR
TITLE
PERIODICAL
ABSTRACT
ASSOCIATION
PRESENTED BY
SUBMITTED
AVAILABLE
GROSHEV L,Ve DEMIDOV A M.
in Lig;t Odd-Odd Nuclei and Their Manifestation in
Nuclear Multi
y-Trarqttions Following Thermal Neutron Capture
(Yadvmve multiplety v le&kh nechetno-nechetnykh vadrakh i ikh proyn-
v2enip v y-perek *hodakh p:~sie zakhvata teplovogo new'r-onas Russian)
AtounsylL Energ ' 1957, Vol 2, Nr 8, pp 91 - 100 (U.S.SeRs)
On the basis orlthe comparison of the hitherto experimentally found
y-transitions in even-odd (odd neutron) and even-even nuclei with A < 60
the presence of nuclear multiplets near the ground state in proved@ The
following nuclei were investigated:
11 Na 84 , 12M9 a5 0 13 Al. 28 .0 14 Si 29 # 15 p34 0 16 s33 9 19 140020 C&41
21SC 46 1* 22 T14q J1 23 V52 J1 24 Cr53 P 25 Mn56 0 26F* 57 0 28 Nj59
(With 7 tables, 6 illustrations, 6 Slavic references).
Not given
28.2-1957
Library of Congress
Card 1/1

AUTHORt GROSHEV,L.V.,
TITLEs -In__v5-5TIC_a_f_i`Jn
Co, Al on the
(Isa1odcT=#e
pri zekhvate
PERIODICALt Atomnaya Energiya,
89-9-1/32
DE"IIDOV,A.?.I., LVT8ENKO,V-N-, FELEK_'HOV,V.I.
of the t-Rays Emitted by the ;:uclei of V, Mn,
Occasion of the Capture of Thermal Ifeutrona.
e-luchey, inpusksyemykhyadrami V, ILn, Co, Al
teplovykh neytronov)
1957, Vol 3, hr 9, pp 107 - 203 (U.S.S.R.)
ABSTRACTs The energies of the r -quanta were measured by means of a
sointillation spectrometer. The r-energies can, for com-
pariaon with other nuclear reaction moaijurements, be arranged
in level schemes. The following levels (in MeV) were found with
individual nucleit
56 C060 4.7 128
V51 (n,r)V52 Mn55(n,X))Jn Co59(n r) Al^' (n f)A
22 J:-lihe a 11 t-lines .40 ~-Iines 25,r-lines
Ifivew in Xivng in Nivens in Niv oaug_in
V:) Un Co Aleo
0,13 0,11 o,o6o 0,03
0,42 0,21 0,206 7 Ot97
0,67 0,306 0,445 1,37
0,83 Ot47 0,513 1,63
1,40 1,15 0,557 "' .14
Card 1/2 1,40 1,32 0,622 2,20

89-9-1/32
Investigation of the e-Rays Emitted bj the Nuclei of V, Un,
Co, Al on the Occasion of the CaDture of Thermal Neutrons.
1,55 1,53 0,972 3,10
1,75 1,73 1,012 3,29
1,79 2,05 1 )12 3T 3 46
1,84 2,23 1,533 3:60
2,09 207 10625 3988
2,13 2,54 2054 4,03
2,15 2,6a 2,295 4,24
2,31 3,83 2,610 4,69
2,42 7,26 3,138 4,77
2,46 7,51 4,90
2,53 5,14
2,85 5,47
3,00 5,77
3,09 6,25
3,1A 6,76
Card 2/2 .0,31 7,729
7,296 With 7 tables, 16 illustrations and 4 Slavic
ASSOCIATION: Not Given
PRESENTED Byt
SUAMITTEDs
AVAILABLEs Library of Cont;resa

2- 10/1
AUTHORSj Groshev, L. V. Demidov, A. M. Naydanov, V. A.
TITLE: Spectra of Electrons of Internal Conversion Which are Emitted in
Captures of Thermal Neutrons by the Samarium-, Cadmium- and Gado-
linium-Huclei (Spektry elektronov vnutrenney konversii, ispuskaye-
mykh pri zakhvate teplovykh neytronov yadrami samariya, kadmiya i
gadoliniya)
PERIODICALi Izvestiya AN SSOR.,Seriya Fiziche3kaya, 1957, Vol. 21, Nr 12,
pp. 1619 - 1623 (USSR)
ABSTRACT: The spectra of electrons of internal conversion which develop in
the radiation n, r were investigated here. For this a magnet
spectrometer was used with electrical recording of the electrons
by counters placed far apart and connected to the coincidence-scheme
The apparatus was not the very best, as it possessed comparatively
small light intensity and dissolving power. The measuring method
and the apparatus are described in reference 4. The only difference
consisted in the fact that the neUtrons from the one of the chan-
nels of the reactor (PTR) im:aediately passed into the camera of the
spectrometer and impinGed upon the investigated sample. Sample
3 x 4 cm 2. ~he investigation of the line with T keV at a thick-
Card 1/2 ness of the sample of 0,78 Mcm- 2 and 0,31 ldcn- in the spectrum

48-12-10/15
zipectra of Electrons of Internal Conversion Which are Erait,.ed in Captures of The
mal Neutrons by the Samarium-, Cadmium- and Gadolinlum-liuclei
AVA I LA 13LE s
of a Gd-sanple showed thUt the peak-area in this rauge of thick-
neso still increases linearly with the thickness of, the tianple.
The data obtained for the energies and the multipolarity of the
transitions In the inveatigntod nuclei are 1,iven in !A tablO. At
enerj;ies of the electrons below 100 koV an essential decrease in th
coefficient &2 was observed beside a widening uf lines. The find-
inr, of the line-intensity becane unreliable here and therefore
at electron-oneraies below 100 keV no multipolarit~- for the peaks
wLs determined. Multipolarities were dqWmined for tran?Wona
with ener q~g s of 337 and 44 ~eV in Sml!~O, 553 keV in Cd 9 197
keV in Gd , 180 keV in Gd15 . For all these trarsitions may be
assumed that they are transition3 of the type E 2 which alao is in
agreement with the results of other works (refere--ces I - 3). There
are 4 figures, 2 tables, and 9 refererces, 2 of which are Slavic.
Library of Congress
Card 212

r.! I k , , " -~, V, 1,enniri Vasi-l"ievich (Prof .)
"Thermal-Neutron Capture of Gamma-Ray f:pectra and lNuclear Level Distributionl~,
a paner to be prerented at 1958 UN "Atoms-for-Pence" Conference, Geneva, Switzerland.).

- M.NXI[OV, V. 1.
DWIDOV, A.M.; LUTSMIKO, Y.N..
(Atlas of gamma spectra of radiative capture of thermal neutrons]
Atlas spektrov-t-bachei redistsionnogo sakhvats teplovykh
neitronov. Isd-vo Glaynogo upravlenlia po ispollsovaniiu. stomol
energil. 1958. 198 p. (MIRA 13:3)
(Gomm rays--Gpeetrs) (Reutrons-Capture)

AUTHORS: Groshev,L.V., Demido'. ',.M.,Lutoonko,V.N.,PelekhoyoV.I- 89-1-1/29
TITLEi r Ray Spectra Emitted by Even-Even Nuclei With Rotational Levels if the
Nuclei Captured Thermal Neutrons (Spektry f -luohey radiatsionnogo
zakhvata neytronov dlya ohetno-ohetnykh izluohayushohikh yader a
vrashchatel'nymi uroynyami)
PERIODICAL: Ataonsys. Energlya, 1958, Vol. 4. Nr 1. pp. 5-21 (USSR)
ABSTRACT: By seam of a magnetic Compton spectrometer the r -.spectra (E = 0.3-9
MeV) are measured and the following lines are obtainedi
E r in MeV
157 Gd155 n.
Gd Gd( Zz( nr) HA nf) Dy( n.() Ta( y)
nj,) (n.r
6.74!0-01 7-33�0-03 (0.69:tO.02) 6.680t0.015 6.39�0-04 5.87�0.02 6.04+0-02
6.44*o.03 6.71,tO-03 (0.64�0.02) 6.202+0.015 6.140-02 5.58DO-M 5-94;0-03
5-88+0-03 &444tO-035 0.55:tO.02 6.07+ 0-03 5.7340.812 5.15�OD2 5.80j0.03
5.62i0-03 -4.3- 5.88-1 0.03 5.4910.03 4.65t0.04 5.54tO.O3
Card 113 %5.2 1.24+0.02 5.73� 0.04 5.34tO.O3 4.10+QD25 5-36~+O-03

rRay Spectra Emitted by Even-Ilven Nuclei With Rotational
Levels if the Nuclei Captured Thermal Neutrons
4.92tO.O4 I 17tO.O2 5.340-03
1
02 i:06to.02
= 4.7-AOD35
:
:
1 02 (0. 96tO.O2) 4.66+0.03
1-185rO-015 "M;QO45
1."0;0-015 4.1
0.96tO.O2 1.9
OMOtO-015 1-3
O,V~0,02 1.01t0.02
0.94+-0.02
OMIO-Oi
o.736 �0.015
0.64t0.02
89-1-1/29
4.92�0.03 3.48�0-03 5.24!0.03
4-8OtO-45 3-140.03 4.9910-03
4-,~4+10-04 3-81�0-03 4-83�0-03
I* 3W_ W5 2. LO-03
U41510.015 2. 74+GDZ
tM tOD 15 0.42+0.02
1.30+0.02
t 2200015
1-18G~W5
tM10.0i 5
sms r -quanta of the nuclei can te well classified in level schemata.
The following levels are excited with cartaintyi
Card 213

~f Ray Spectra Mitted by Even-l"m Nuclei With Rotational
Levels if the Nuclei Captured Thermal Neutrons
89-1-1/29
W58 (mi56 Er, 68
E r in MOV 3 4 in MOV I in XeV
0
0.08
0.26
101
1.20
1.25
1*40
7-87
Then are 15 figures.
Slavic.
0
0.060
o.265
1.08
1*28
1.80
7.76
0
0.089
0.287
1-17
1.24
8.46
11 tables, and 26 referenoes, 5 of whieh are
SUMTTIM August )1, 1957
AVAILMIEt Library of Congress
Card 3/3

AUTHOJRSv Vlasov, N., Groshev, L.j Mostovoyp V.p Pevzner, M., 89-1-2ol29
TITLZs Interaction Between lieutrons and Nuclei (Vzaimodeystviye
neytronoy a jadrami).
MIODICkLe Atomnaya Energiya, 956, Vol. 4, Hr i, p,-,. 96 - iol (USSR)
A33TRACTs Prom September 9, to September 13, 1957 an International Con.
ference took place at New York Columbia University, which was
attended by more than 2oo physicists. A total of 70 lectures
was delivered. The most important results age the followings
The reaction arose section for B10(n,a), Li (n,a) and W(n,p)
must be measured with much greater accuracy.
Description of a neutron spectrometer with a pulsating neutron
source from a synchrocyclotron. Readving power obtained:
~;00,01,tv/m with a flying distance of 35 m.
A mechanical selector which attains a ray-resolution of o,ol
to o,o15 &s/m
At 1d143 a negative point of reso 5 nee was uniquely founds
Eo - -1,5 i o,5 eV; oof' - 415 b(eV)2.
Determination of the *lds of variou imotopes at the fission
of U233_witb En = 1,8 eV and the fis:ion of U235 with En >2 eV.
A three fold fission of U235 with neutrons in the energy range
Card 1/5, of from o,o2 to o,2 eV was not found.

Interaction Between heutrons and Nuolei.
89-1-2o/29
A magnetic speotrograph was built for the purpose of measuring
the energy of fission fragments.
For pU240 resonanoes at En a 1,056 eV$ 2o,4 eV and 30,2 eT were
found. For pu242 o7a~ r:sonances at 2,65 and 53,6 eV were found
up to 1 KeT. For 1 2 a d Zr93 no resonanoe was found within thG
range of from I to loo eV.
dr(u 253) 0,93231o,0013
a (UZ3
dr (pU239) for neutrons with
. 1,405~-+0,0009 Maxwell distribution
df CUZM and T w 2oOC
Cjr(pU239) 10048+0,0009
q.(pu241j 1,351+ o,ooo6
6 f(rvxo) -
6. for Au s 98,8 -+ 0,3 b En 22oo M/sec
T1/1 of U 233 a (1,611 t o#oo8) . 105a
Card 2/3 df for U233 x 524 1 4 b En a 22oo M/aec

Interaction Between beatruns and Njclei. 09-1-2o/29
dE
f
6c E - u25,5 ;L 5,0% for Pu 24o
a. 22oo m7sec
The folbwlng reactions are deacribeds
U"'(d,p); U2" (d,pf); U238(c,.'p); U2 38(d,pf) Ed - 14 MLIV
U 236 (n,n?), U235(n,n'); Pu239(.1n,) En . 0,55; 1,o and 2to MeV
Fe56 (11'n'), 1' 2, (n,n') En - --,1,5 MeV
F(n,l*) - 15 resonances from 2 to 15 eV were foand
(n-p), (n-u), (n-2n) reqctions on various elements
D(p,n) Ed - 3,5 UP to 3,9 MeV.
Furthermore, the)-- spectra of the most varied n-r processes
were measured. There are 2 figures.
AVAIUBLEs Library of Congress
Card 3/3

AUTHOR: Varshalovich, D. 307/53-65-4-10/13
TITLE: VIII Annual Congress on Nuclear Spectroscopy (VIII yezhe-
godnoye soveshchaniye po yadernoy spektroskopii). IV
PERIODICAL: Uspekhi fizicheakikh nauk, 1958, Vol 65, Nr 4,
PP. 725 - 726 (USSR)
ABSTRACT: Contins,ation of the list of lectures held at the Congress
of Nuclear Spectroscopy, Leningrai, January 27 - February 3,
1958. L.V.Groshev, A.M.Demidov, V.N.Lutsenko and V.I ~6 158
PelekE6-v---FAN---ffM) gave a report on y-spectra of Gd' I Gd
Er 16e , Hf178, Dy 165 and Ta 182 ; B.S.Dzhelepov, N.N.Zhukovskiy,
I.F.Uchovatkin and S.A.Shestopalova (VNIIM) on the y-
spectrum of Ra in the range of 200 - 1500 keV;A.A.Voroblyev,
A.F.Komar, G.A.Korclev and G.Ye.Solvakin (LFTI)on the spectrum
Sm 147(T 1/2' 10 12 a) and of Pu 238, observed by means of an
ionization spectrometer; A.P.Komar, G.A.Korolev. G.Ye.Kocharov
(LFTI) investigated the excited states of Th230 and Th234
by the method of the (a - a k)."coincidenoe; B.V.Pshenichnikov
Card 1/4 and Yu.I.Filimonov (LFTI) reported on Investig%tions of the

VIII Annual Congress on Nuclear Spectroscopy. IV SOY/53-65-4-10/13
U235 decay by means of the methods of the (a-y)-coincidence
and of the (a-y) angular correlations; L.L.Golldin, G.I.
Grishuk and Ye.F Tretlyakov (TTL AN SSSR) on the conversion
spectrum of pu23�; L.L.Colldin, V.b.Dedov and L.N.Kondratlyev
(TTL AN SSSR) on the a-spectrum os Sm242; L.A.Khalfin (VIRG),
A.G.Zelenkov (AN SSSR) and Sator Salan and Denesh Bereni (111un-
gary) spoke on devices applied in spectrography and spectro-
metry, respectively;L.L.Golldin, G.I.Grishuk ~~nd Ye.F.
Tretlyakov (TTL AN SSSR) gave an account of an ironless
P-spectrometer; K.Y.Abramova,ya.Zhilich, Ya.Kormitskiy and B.I.
Peregud (LFTI) reported on the stabilization of direct
current and of electromagnetic fields; I.Ya.Korollkov of the
automatic measurement of y-spectra; A.I.Zhernovoy, Yu. S.
Grigorlyev, G.D.Latyshev (LIIZhT) on the measurement and
stabilization of magnetic fields on the basis of the magnetic
resonance of protons; E.M.Krisyuk and G.D.Latyshev (LIIZhT)
on the problem of compensating the earthl+ag-nctic field;
Ye.L.Stolyarova and S.G.Chukhina (MIFI) ipoke about a y-
scintillation spectrometer; N.V.La-arev (TTL All SSSR) reported
on the same subject; M.P.Sokolov (AN S:,SR) reported on an
Card 2/4 automatic differential analyzer; V.R.Burmi:jtrov (URTF) on a

VIII Annual Congress on Nuclear Spectroscopy. IV SOV/53-65-4-lo/13
scintillation counter; A.Ye.14elamid and N.S.Khlebnikov
(MRTP) on photoelectronic amplifiers. The authors: A.G.
Berkovskiy, L.G.Leyteyzen, V.G.PolInkiy and A.G.Berkov3kiy,
I.Ya. Breydo, B.M.Glukhovskoy, O.S.Korollkova, L.G.Leyteyzen,
Ye.I.Tarasova (MRTP)in two lectures gave a report on photo-
electronic amplifiers for scintillation spectrometers; V.A.
Filimonoy (MU) spoke about the interaction of A-particlea
with nucleons and on the binding enorgy of the hypernuclel
He3 H4 [e I V.U.Strutinskiy and V.G.No3ov (AN SSSR) on
At ~,, and E I
the oancade em,14ssion of y-quanta; D.D.Ivanenko and E.V.
Teodorovich (11,1GU) on the Lamb shift in hydrogen ; A.S.Basina,
K.A.Baskova, B.S.Dzhelepov and M.A.Dolgoborodova (LGU) on
measurements of the angular distribution of the quanta in
the positron annihilation in liquid hydro,r,en and helium;
N.A.Guliyev (Baku) on the polarization of nucleons "E. 110 MeV)
in the scattering on Al and Cu nuclei.
The lectures are published in the perlodica!3: "Izvestiya
Card 3/4 Akademii nauk (Ser.Fiz.)" and "Atomnaya Encr(71ya".

VIII Annual Congress on Nuclear Spectroscopy. IV S07/53-65-4-10/13
Card 4/4

jai
fill
I a 4111
t I

210) suleg-6-3-5129
AUTHORS: Groahev, L. V., Gavrilov, B. I., Dtmidov, A. It.
TITLE: Investigation of y-Radiation Emitted by Nuclei at Capture
of Thermal Hentrons (Issledovaniye I-lucheyo ispuskayemykh
yadrani pri zakhvate teplovykh neytronov)
PERIODICAL: Atomnaya energiyat 1959, Vol 6, Hr 3, pp 261 - 289 (USSR)
ABSTRACT: The Compton- (Kompton) spectrometer used in the measure!nent
of the y-spectra has already been described In reference 2.
The spectrometer was located in such a way opposite to the
target and the neutron irradiation duct of t',.e reactor X-M
of the AS USSR, as to expone only the target to the direct
nentron and I-beam from the active zone of the reactor.
The I-radiation originating from the tariet wan collimated
over a length of 3650 mm by means of 7 leaP diaphragms. The
predominating weakness of the spectrometer is its unusually
high 1-background, which is caused by its being placed very
near to the reactor. In order to suppress this background
the whole spectrometer wna nurrounled by a water tank and
paraffin bricks, respectively, and the mea7uring chanber
Card 1/3 of the spectrometer ran protected by a lea!] shield about

Investi(:ation of y-Radiation Emitted by !fuclei at 3 07/6 9 -,(,- 3 - 5 /2 9
Capture of Thermal Neutrons
10 cm thick. The inteniity and the cnerj~y of the y-radiation
originating from neutron capture was measured for the
following nuclei: P, Sc, Cr, Cu, Zn, Sn, and Sb. The values
obtained generally show a good agree-.ent with values de-
termined earlier. The preparations of the individual element
were treated as follows: P205 wan put into a bakelite box,
which could be sealed hermetically. The prepnration was
besides IncertA into an aluminum casing with a rall thick-
ness of i mm. The target had a dianeter of 140 mm, a length
of 120 mm and a weight of 1-5 kg. Causel by the presence of
the intensive capture I-lines originating from the hydrogen,
lead and aluminum in the preparation it waq impoonible to
record the y-npectrum of p32 in the range of 3.22 and )7 MeV.
So203* The target had a dinmeter of 100 mm and a weight of
25 g. The preparation was housed in a jraphite container.
No menatirements could be conducted in the range of 2.23
and,j 7-38 MeY due to the intensive background caiised by the
Card 2/3 reaction H(n,y)D, Pb2o7(n,y)Pb2o8.

Invent igat ion of y-Rndiation Emitted by thiclei at SO-1/89-6-3-5/29
Capture of Thar-iial Hentrona
Cr 2031 The tnruet had a Oinnoter of 120 mm, n lent-,th of
10 mm and a reight of 1 kg, The y-spectrum of the chromium
isotopes 53 and 54 could not accurately be recorded in the
ran.-e of 7.38 !.,.eV.
Cu and Zn: The tareets convistcd of a rinC vith a diameter
of 110 mm and a thickness of 20 mm. They weighed 1.7 and
'v 1.3 kg, r~,spcctively. The target was exposed to the inci-
dent neutron beam at an tviale of 450. The background was in
the ranre of 7-38 MeV very weak. For this reason this recion
could be measured for these two elements. A. S. Volkov pre-
pared and performed the stabilization and the measxirement of
the mag-netic field. There are 7 fi,-,ures, 4 tables, and 13
references, 5 of which are Soviet.
SUBMITTED: November 17, 1958
Card 3/3

21(9) SO'1/6 9 - 7 - 3 -: 1 /2 9
AUTHORS: Groshev, Lp V., Demidov, A. M.
TITLE: The Spectrum of rRays of the IRT Reactor
PERIODICAL: Atomnaya energiya, 1959, Vol 7, Nr 3, pp 257-258 "USSR)
kBSTRACT: A channel tube extending as far as the reactor core of the IRT-
reactor is partly filled with boron carbide and paraffin and
a lead screening substance. In the lead screening Substance
there is a thin central channel, through which the r-quanta
produced in the reactor core reach a A-spectrometer described
in reference 2. The I-spectrum of the c~zre is superimposed by
a number of ~-lines, which originate from the (nd procssses
on Al (the material from which the rea--tcr is built3_, C
(graphite reflector) U235 and U238 and fro= the radioantve
nuclei produced in these proceS300. If those 11-lines are
eliminated from the measured apectrum, the I-spectram aor-
responding to the core of the !RT-reantor r4mains. Both spe~:tra
are graphically represented. For the latter, the relative _"n-
tensity of each r-domain, i.e. divided into 'I intervals,
0.2 - 7.72 Mev is in addition tabulated. The '_"RT-spootrum is
Card 112 distinguished from the spectrum of the RFT-rea~~tcr esp,~~lally

The Spectrum of r-Rays of the IRT Reactor
SOV/8 9 - 7 -- 39
by the fact that .1n the latter the h'Ag.h.-energ., Tart ~-,f ihc-
spectrum is more pronounced, because here -Jrcn, ard
chromium are used ds building materials, ~ra because the
processes on these elements have a great yieli. Therp a--3,
1 figure, I tabla, and 3 Sov!,3; refleren-,es.
SUBMITTED, May 4, 1959
Card 2/2

ALIT 110R Groshov, L. V., Demidov, A. M. SOV/89-7-4-2/28
TITLE: On MI-Traneitions From Highly Excited States
PEMIODICAL: Atomnaya energiyaf 1959, Vol -, Nr 4, pp 321-328 (USSR)
ABSTRACT: First, a short report is gi.-7an on earlier papers dealing with
this subject. It is of intereot, on the basis of the single-
particle model to investigate the probabilities of Ml-transitdims
from the initial state for mi.-,h nuclei as lie within the same
range of atomic weightn. F!r3t, the forbidden Ml-transitions
under investigation in the -,Angle-particle model are diseussed.
The authors confine themselvos tr. analyzing the MI-trancitions
of even-odd nuclei produced in F., reaction (n, In nuclei with
A of from 20 to 60 MI.-tranaitiorL were found to-occur in the
25 29
nuclei Mg 0 Si Ca . The Ml-transitions from the
initial state lead to levela with characteristics 1/2+ or
3/2+. For determining the orcler ~~f this prohibition of the
investigated MI-transitiona ~A is necessary to compare their
probabilities with those of thL~ permitted transitions, which
are determined by the formulas for the single-particle mcdel.
Card 1/3 Table I contaIns the Tadiatirn widtha and the densities of the

Uri -~-Ti,jiisitiwi, Yrom Highly &ccited SOV/89-7-4-2/28
neutron-a-resonances of the ;:,.uclei with A - 20 to A = 40.
These data are very inaccurate and, in some cases, even WrOrgo
Tho second rather volumiiiotAs table gives data conceruing
Ml-transitions from the 'initial states of even-odd nzzclei.
This table also contains the characteristic properties of the
ut.J.te6 between which a transition occurs. All M11-transitions,
way be oubdivided into two 'Large groups which differ by the
ar:ount of the variation of the orbital moment of the neutron
29
ii~ the transition. The MI-transition in Si , which leads to
a level with isotropic distribution of protons in the reaction
(dtp), is given in additior. The next part deals with the
causes for canceling the prohibitibn. In heavy nuclei with
odd atomic weights a large number of forbidden MI-transitions
with A 1 - 21 is found to occur betveen the lower levels. The
experimental data on these transitions are discussed in more
detail in an appendix. The following causes do not come into
consideration according to the authors' opinion: (1) Inter-
action by the exchange of charges and spine between two
nucleons. (2) Spin orbit coupling. (3) Coupling of nucleons
Card 2/3 tu-,d the surface oscillations of the nucleus. The most natural

a
dn 11-Tmsitions From Highly Excited Stater, SOV/89-7-4-2/28
explanation for the observed probabilities of the 91-transitions
is apparently the mixing of the probabilities of MI-transitions
in the initial and final state. The last part of the present
paper deals with MI-tran.3itiOlIS in odd-odd nuclei. Also in this
case the transitions are subdivided into groups according to
the variation A In t and, besidesl a transition in Na 24 to the
level with the energy of 0-47 Mev is sorted out. An appendix
deals with MI-transitions between the weakly excited states of
heavy nuclei. There are 2 figures, 4 tables, and
28 references, 6 of which are Soviet.
SUBMITTED: May 15P 1959
Card 3/3

V~T~, L.V.
"Radiative Capture of Slow Neutrons (Survey)"
report submitted for the ?nd USSR Conference on Nucloar Reactions at Low and
Intermediate Energies,, Moscow, 21-28 Jluy 1960.

QWSHEV, L.V.; DEVIDOV, A-M-; FELEKHGVp V.I.
[Spectra of gamm rays accompanying the capture of
thermal neutrons by Mo. Nd, Ho., Tu, and La nuclei)
SPe)ctr7 ~ - luchei, soprovozhdaiushchikh zakhvat tep-
lovykh neitronov iadrami Mo, Nd, 11o, Tu,, 3 IA. Mo-
skva, Glav. upr. po ispolvzovaniiu atomoi energii, 1960.
19 P. (MIRA 17:2)

S/048/60/024/007/002/011
BO1q/BO6O
AUTHORS: Demidov, A. M., Lutsenka, V. N.,
Malov, A.
TITLE: A Magnetic Gamma Spectrometer With High Resolving Power
PERIODICAL: Izvestiya Akademii nauk SSSR. Seriya fizicheskaya. 1960,
Vol. 24, No. 7, PP- 791-801
TEXT: This is the reproduction of a lecture delivered at the 10%h All-
Union Conference on Nuclear Spectroscopy hold in Moscow from J;nuary 19
to 27, 1960. The authors describe a now magnetic Compton spectrometer which
allows the gamma spectrum to be measured in the energy range of 0.3-12 Mev
with a resolution of 0.3% at hv > 2 Mev. Resolution becomes poorer at
lower energies. Fig. 1 shows a scheme of the experimental arrangement. in V/C
which the spectrometer described here was used and which served for in-
vestigating the spectrum of gamma emission caused by the capture of thermal
neutrons. The sample investigated was placed in a core-tangential channel
of an MPT(IRT) reactor near the core and was collimated with iron and lead
diaphragms. The neutrons were filtered by means of a 10 cm thick paraffin
Card 112

A Magnetic Gamma Spectrometer With High Resolving S/048/60/024/007/002/011
Power B019/Bo6o
layer. The novelty in the spectrometer described here consists in that the
energy of the Compton electrons is analyzed with two different magnetic
fields. The first axisymmetric magnetic field is produced in a device
called separator and collects the Compton electrons coming from the con-
verter by means of a horizontal and a vertical alit on a counter C1. The
electrons then reach a magnetic analyzer, the O-spectrometer proper and
In the experiment, the depend-
are there again collected on a counter C
2i
ence of the number of pulse coincidences n the counters C 1 and C2 on the
magnitude of the analyzer field is measured, the separator field chi
with the analyzer field. The authors then give formulas (1) and (2) which
describe the magnetic field. In the following sections, they describe the
capture angles of elbotrons, the resolving power, the spectral sensitivity
of the spectrometer and its construction in great detail. The authors final-
ly thank D. V. Pavlov for his calculation of the magnet system, T.. M_
Kamyshev for having designed the instrument and for having provided the
drawings, A. S.Volkov for having worked out the electronic equipment, and
the reactor team for their assistance in the measurements. There are
8 figures and 12 references: 6 Soviet, 5 US, and 1 Swedish.
Card 2/2

A UT HORS
32-50-~
S/048/6
B104/B201
Groohev,. I r.
Be:zidov, A. M., Lutsonko, V.
A. F.
TITLE: A mag4otic gamma spectrometer with high -.,ower
PL--210DICAL; Izvestiya Akademii nauk SSSIR. Seriya fizichc-skuya, V. 24,
no. 7, 1960, 791 - 901
TEXT: The present paper has been read at the 10th All-~;nion Conference
on Nuclear Spectroscopy, Moscow, January 19 - 27, 1960. A new magnetic
Compton spectrometer is described, which allows the Cammi spectrum to be
--easure.a in the energy range of 0.3 - 12 Mey with a resoluticn Of
at h,: - 2 ,',ev. Resolution becomes poorer at lower energies. ?ig. i nhows
a scheme of the experimental arrangement, in which the spectrometer de-
scribed here was used and which served for examining the s-pectruz-1 of
gamma emission accompanying the capture of thermal neutrons by nuclet..
The sample concerned was placed in a core-tangential chanrel of an , 7'
~RT) reactor near the core. The gamma rays were collimated through lead
and iron filters, and the ncutrons were absorbed bjalO-c:-- t1hick D~-.ra:'fin
Card I /P 1-1-7

A magnetic gamma spectrometer...
S/04q/60,'024/CC"i/CO2/'C11
B104,'/B201
layer. The novelty in the spectrometer described here conoi_--ts i:. t!'_,t
the energy of Compton electrons is analyzed with two diffvrent -.ajnc!J_c
fields (Fig. 2). In the so-called separator the Compton electr,~r..,; e4ected
from the converter (K) are collected by an axisymmetric field, paus throu0i
a horizontal and a vertical slit, then a counter D1, reach a nagnvtic
analyzer serving as /~-spectrometer, are again collected, paso through ~ thizd
slit, and hit the counter C 2' In the experiment, the dependcnce Of TJUlSe
coincidences in the counters C 1 and C2 on the analyzer fl:e1d -4:; -.,n_~urcd, the
separator field changing with the analyzer field. The authors then i~ive
formulas
I _ 0,,SO rr,, -;- (1,65
I (it - R~ 2111t - R.
Y' + -n ` -F, ~_ -1.1. "
which describe the radial variation of the magnetic fieldz in the se-ara-
tor and analyzer, respectively. In the sections coming next, they de-
/0 )
ard 2 '-)
C

=Fnetic gar-ma spectrometer ... 310413201
scribe t'-e cauture angles of electrons, the resolving thv
smsiti%ity of the spectrometcr, and itf; construct ion. in 6-cut det,.i I .
D. ravlov is thanked for his oalculation of the ma, r i c- yo t u::~ ,
i. Kamyshev for having designed the device and for having
t ~.. ~ I . .
drawings, A. S. Volkov is thanked for having worked out he vIC!:trGr,-.'c
equip.ment, and the reactor team for their assistance in the :n e a ~;, - r v:-. L~ n' :;
There are 8 figures,~l table, and 12 references: 6 So;iet-bloc and 6 non-
Soviet-bloc.
/I "I"
Card 3

S/04 8/60/02 4/007/016/0 3 2/XX
B1 04/B201
AUTHORS: Groshev, L. V.., Demidov, A. M., and Lutsenko, V. 14.
TITLE: Spectrum of the gamma rays from the reaction C135(n #Y)Cl 36
PERIODICAL: Akademiya nauk SSSR. Izvestiya. Seriya fizicheskaya, v. 24,
no- 7, 1960, 833-836
TEXT: The present paper has been read at the 10th All-Union Conference on
Nuclear Spectroscopy, Moscow, January 19-27, 1960. The authors studied the
spectrum of the gamma rays formed during the capture of thermal neutrons by
C135. The measurements were made by the new magnetic Compton spectrometer,
which is described in this issue (Groshev et al., PP. 791-601), on NaCl
samRles (50-100-190 mm). The gamma spectra obtained are shown in Fig. 1
(hy - 4.8-8.7 Mev) and Fig, 2 (hV - 0.2-4-6 Mev). The nature of the countirg
background caused by gamma radiation in the x1eactor channel and in the
converter is discussed thoroughly. The first cause of the background forma-
tion is said to be the radiation coming from the reactor channel, and the
second cause, the formation of electron pairs in the converter due to gamma
Card 1/14,
_77>

3/040/60/024/007/016/032/7X
Spectrum of the gamma rays B104/B201
radiation. Energies and intensities of gamma rays, atising in the reaction
C135(n,,)C,36, are collected in a.table. These data served,gs the basis for
the construction of the part of gamma transitions of the Cl nucleus, as
shown in Fig- 4, using the results of a study of the (d,p) reaction by Paris
et al. (Phys. Rev., 100, 1317 (1955))- Special interest was attached to
the neighboring 1-957 Mev and 1.949 Mov levels. This part of the spectrum
is presented in detail in Fig- 5. The part of the gamma transition scheme
shown in Fig. 4 is described and discussed thoroughly. Four variants of
the quantum characteristics of levels are dealt with in a detailed discus-
sion, making use of data on the orbital momenta, which have been obtained
by I. B. Teplov (Zh. eksper. i teor. fiz., ~1, 25 (1956)). It is finally
stated that data available so far permit no opinion to be expressed as to
the authenticity of one or the other variant. There are 5 figures, 1 table,
and 11 references: 4 Soviet-bloc and 7 non-Soviet-bloc.
Legend to Fig. 1; Part of gamma spectrum of NaCl in the energy range
hy - 4-8-8-7 Mev- 1) coincidences/3 minutes.
Card 2/V

GROSHEV, L. V., -DDMM, A. M., LUTSENKO,. V. N., PELEKHCVp V. 1.
*(n,Y) Reactions Studies at the IRT Reactor of the U55R Acadew of Science"
paper preoented at the SMosim of the International Atomic bwrgy Agency on Pile
Neutron Research in Physicep Vienna,, 17-21 Oct 1960*

GROSHEV, L.V.; DEMIDOV, A.M.; PELEKHOV, V.I.
Spectra of ga- raya produced in the capture of thermial neutrons
by heavy nuclei. Part, 1. Zhur.ekap.i teor.fiz. 38 no.2:588-597
F 160, (G~ rays) (Neutrons---Capture) (Min 1445)

STRUTlNSKIY, V.M. j GROSEIIIN, L,V. ; AKIMOVA, M.K.
Spectra of gamma rays produced in the capture of
heavy nuclei. Part 2. Zhur.eksp.i teor.fiz. 38
(Gamma rays) (Neutrons---Capture)
thermal neutrons by
no.2:59&-611 F 160.
(MIRA 14:5)

GROSEEVP L. V.
"Decay of Gdl56 and GdI58 )to
report presented at the Conference on Low Energy Nuclear Spectra, Cppenhagen,
23-27 May 1961.
Inst. of Atomic Energy, Moscow

33004
S/641/61/000/000/07,1/0.33
B102/B136
AUTHORS: ~fnhev, L. V., Demidov, A. M., Pelekhov, V. I.
TITLE: Spectra of rays accompanying thermal neutron capture by
Mo, Nd, Ho, Tu and La nuclei
SOURCE: Krupchitskiy, 11. A., ed. Neytronnayn fi,,,.ika; ibornik statey.
M,oscow, 1961, 555 - 347
TEXT: This is a continuation of previous investigations of thermal
(n reactions (c.f. Groshev et al., Lecture at First Geneva Conference
1W~-; experimental apparatus and arrangement have already been
described. This paper gives the results in great detail. Mo: A specimen
of 1.4 kg total weight, consisting of disks 55 mm in diameter, was used to
measure the spectrum in the 0.3-10 Mev range. Up to 80 % of the thermal
neutrons were captured by Mo95. Nd: Range 0.3 to 9 Mev, 200-g specimen
of Nd203' 77 % of the spectrum is due to r- transitions of Nd144. The
binding energy, B n, of the last neutron in Nd 144 was found to be
7.60 + 0.02 Mev. Ho: Range 0.3 to 7.5 Mev, 50-9 specimen of Ho 20 3' The
Card I

33004
3/641/61/000/000/0211/033
Spectra of rays accompanying... B102/B138
high-energy edge of' the spectrum is at 05.15 Mev, B n> 6.15 Mev. Tu: Range
O~3 to 7.5 Mev, 50 g specimen of Tu 20Y High energy edge:
6.56 + 0.02 Mev; B >,6.56 Mev. La: Range, 0.3 to 7.5 Mev, 400-g La 0',
n 2 ~
specimen containing no impurities of other rare earths. Lines previous
found at 1.18, 0.74 and 0,44 Mev with impure specimens and attributed to
La 140 were found to be due to r-transitions of Gd. B n was VIk"
>,5.145 + 0.015 hiev, This is somewhat higher than found by Johnson and
Nier, The 5.145-Mev line is attributed to a transition to the ground state
and the arguments for this assumption are discussed. There are 12 figures,
5 tables, and 8 refer,.nces: 4 Soviet and 4 non-Soviet The four
references to i~nglish-language publications read as follows: ---. B. Kinsey,
G A, Bartholomew. Canad. J. Phys, 31, 1051 (19A); G. A. Bartholomew.
L. A. Higgs. Comnilation of Thermal Neutron Capture Gamma Rays. Chalk
River, Canada, AECL-669 (1,956); U, H. Johnson, A 0. Nier. Phys, Rev. 1c'),
1014 (1957) ; P. Boskma, H. De Waard. Nucl, Phys, IA. 145 (1959).
Card 24

33005
S/641/61/000/000/0'WO""
B102/B138
AUTHORS: Groshov, L. V., Demidov, A. M., Pelekhov, V. 1.
TITLE: Determination of slight gadolinium and samarium impurities by
gamma spectrum analysis with (n,r) reactions
SOURCE: Krupchitakiy, P. A., ed. Neytronnaya fizika; abornik statey.
Moscow, 1961, 346-353
TEXT: Thermal neutron capture gamma rays can,in certain circumstances,be
used for quantitative determination of rare-earth impurities, provided a
magnetic Compton spectrometer of high resolution is available. The
impurities to be determined must have large, and the substance in which
they are contained, small, d n and Bn values. d n is the thermal neutron
capture cross section and B n is the bindinE energy of the last neutron.
The method was tested by determining Sm and Gd impurities in other
rare-earth substances. The minimum concentrations which can be determined
with a Compton V-spectrometer of 2 % resolution are given in the table.
The 6.74- and 7.22-Mev lines, which are characteristic of Gd and Sm, have
energies above the B n. value of most of the rare earths. Several spectra
Card 1/1

Determination of slight...
33005
S/641/61/000/000/032/033
B102/B138
are given and discussed as examples. The method is limited in its
application, due to the cn and Bn requirements (.-,iven above and the
necessity of uninp large specimens (5C-100 g) in this type of spectrometer
There are 4 figures, 1 table, and 3 references: I Soviet and 2 non-Soviet.
The two references to English-language publications read as follows:
G. A. Bartholomew, L. A. HiEgs. Compilation of Thermil Neutron Capture
Gamma Rays. Chalk River, Canada. AECL-669, 1958; G. Backstrom. Nucl.
Instrum. and Methods, A, 5 (1959).
Legend to the Table: (1) Element; (2) Impurity concentration.
Card 211

(Quant--r t',,rcx-:,)

S/903/62/000/000/039/044
B102/B234
A UrHOR 8 Groshev, L. Vo
TITtEj Radiative capture of slow neutrons
Yadernyye reaktaii pri malykh i erednikh energlyakhl trudy
Vtoroy Vsesoyuznoy konferentaii, iyull 1960 g. Ed. by
A. S. Davydov and others. Moscowt Izd-vo AN SSSRj 1962P 515-524
TEXTs The author reviews the most important results obtained in the last
few yearep both in the USSR (especially in the Inatitutatomnoy energii
AN BSSR - Institute of Atomic Energy A3 MBR) and abroad, on low-energy (n,Yl)
reactions also in the ease of resonance. The theory of radiative reeonance~
capture of slow neutrons is briefly considered as to the determination of
the ooefficients 0, entering the Ifunction of the state A formed on neutro
ok
capture. Also-the problems of direct neutron capture is dealt with (NUCI.
Phys. 139 205P 1959; Progr. The'or. Phys., 23, 161, 1960). The last chapter
of the article deals with the now types of spectrometers developed in the'
last year for detecting thermal-neutron (nq) reactions (Can. J, Phys., 37,
1959; Rev. Sci. Instr. 26, 255, 1957; BkP3g Ilt 4P 4769 1959). The
Card 1/2

S/903/62/000/000/039/044
Radiative capture of slow neutrons B102/B234
review ends with 1960 as it was presented at a conference held in 1960*
There are 2 figures, 2 tables, and 38 references.

S/903/62/000/000/041/044
B102/B234
AUTHORSi do v fA, U.9 Luteenkot V. H., PslekhoytVe Is
TITLEs Radiative properties of the Cd114 lower levels
SQURCEs Yadernyye reaktaii pri malykh i erednikh energiyakhl trudy
Vtoroy Voesoyuznoy konforentaiip iyull 1960 g. Ed. by
A. S. Davydov and others. Moscow, Izd-vo AN SSSR, 1962, 548-550
TEXT: The authors investigated the Cdl'3(n,r)Cd'14 reaction induced by
thermal' neutrons and measured the X-ray spectra in the range 0.3-9-5 Mev as
well as the conversion electron spectra in the range 0.3-2 Mev. The measure-
ments were made with a now type of Compton magnetic spectrometer with 0-3%
resolution at hv>2 Mev and with a special conversion spectrometer with i
0.6% resolution. Energies, characteristics and coefficients of the transi-'
tions were determined (Table) for emission of pquanta (I) and internal.oon-
version electrons.(II). The res"lts obtained are discussed on the basis of,
the vibration model (Phys. Rev. 103t 1035, 1956)o It is assumed that the
levels 1135P 1207 and 1283,kov form a two-phonon triplet; it is, however,
not impossible that the 0 level of 1135 kev is due to the excitation of a
Card 1/2

S/903/62/000/000/041/044
Radiative properties of the... B102/B234
neutron pair. The 1848-kov level, far away from the triplet, is a 0 + level
(Cohent Price# Private Oommunication). The 552, 650 and 1207 kev levels
have the reduced S2 transition probabilities of 36, 60 and 0-76 Weisskopf
+ +1
units which agrees with the collective nature of the 2 -2 levels according
to the vibration model. There is I tablce
ASSOCIATIO~s Inatitut atomnoy energii im. 1, V. Kurchatova AN SSSR
(Institute of Atomic Energy imeni I. V. Kurchatov AS USSR)
Card 2/2
F,,kev diviol + M
557 4,11 ~5
650 3,1 5
708 3,5 -
726 2.3
748 2,1
808 2,8
H33- >20
1305 >1000 0,5
E2
E2, MR Mil J%
gz+M1
0+-.0+
M777,-,

GROSHEVI L.V.; DEMIDOV, A.M.; FELEKHOVp V.I.
Gamma-ray spectra generated in neutron capture by heavy nuclei.
Trudy Inst.fis.AN Gruz.SSR SiBl-94 162. (KMA 16s2)
(Gamina-ray spectrometry) (Neutrons.-Capture)

GROSHEVO L.V.; DEMIDOV, A.M.
Determining the bura-cut of fuel rods by means of a
magnetic gama-spectrometer. Atom. energ. 13 no.5:458-466
N 62. (MIRA 15:11)
(Nuclear fuels)
(Gawna,.ray spectrometry)

3/048/62/026/008/003/028
B163/BlO4
AUTHLRS: Groshav, L. V., Demidov, A. M., Lutsenko, V. N., and
9 _QFQ wo_~ I ~V- I
TITLE: Spectra of t-rays and internal conversion electrons from the
reaction Cd 11 3(.t) Cd'14
PERIODICALs Akadamiya nauk SSSR. Izvestiya. Seriya fizicheskaya, v. 26,
no. 8, .1962, 979 - 992
TEXT: The t-spectra in the energy range from 0.4 to 9.5 Idev were measured
in a magnetic Compton spectrometer giving a resolution of 0-3~; for energies
above 2 Mev and of 0.6~ at E _' i Mev, described earlier by Groshev at al.
(Izv. AN SSSR. Ser. fiz., .24 791 (1960)). The spectrum of internal'con-
version electrons in the energy range from 20 kev to 3 Mov was measured in
a magnetic beta spectrometer with a resolution of 0.6% at E ~i-300 kev and
a
of 1~'Q at lower electron energies, described earlier by Pelekhov and Malov
(Izv. AN a5R. Ser. fiz. 25, 1069 (1961)). The energy levels of Cd114 are
of interest for investigating the lower levels in even-even-nuclei. To
measure theppeatrum, a metallic cadmium target consisting of the natural;
1/3
Ji

S/048/62/026/008/003/028
Siectra of T-rays and ... B163/B104
mixture of isotopes was boml)arded with thermal neutrons. In the ropectnzn
132 lines were resolved, containing ML of the total energy released by the
r4cutron capture. To measure the internal conversion spectrum a cadmium
oxide target of 0.0 mg/CM2.thickness, enriched to 8%, Cd113 on an aluminui
bickine foil was used. This spectrum contained 36 lines up to energies of
1.7 :s:ev. The energies, relative intensities, and internal conversion
co