SCIENTIFIC ABSTRACT PEKER, L. K. - PEKERMAN, F. M.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001239820020-4
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: June 15, 2000
• Sequence Number: 20
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

16o 0 C
The Decay of Tb and 11 and thc, Lfvc-.L ','ch(--.me Df Dy
of th~'J~-linoo in thc. f3pectrum of -ire
the range of +207o in aCreement with thoo-C -f
5 and L The Teasur,~ments of t~-,e converei~,
that the sc~ft cc,:~-~.nent is tw"P as iveak as -h;-- %ar!
The multii~licity of theje trancitions
and between the int~noities of
must exist.. - Radiuactivc Ho 16() was cb'~a'.red
of a tantalun. tarj-,et with ~)ro~ons with ar. ene-E7y --f ~r
660 MeV. The erbium. and huimiam fra-tionE, were-, t,:'
C,ra~h.icaily separated fro--., ~hc tar(-,~ in
spectrum all c-nversiun 1.-nes of HC h""
obtained in refere-ice 8 were also ronf~rr.e-! ~,&: a-i
new ones disoovered. It -is shown that th~- Iran.:' t - c,,~ s
the upper levels are 1),ri,-,itted ones, Tho sr.-~al, ~z. b e rf
1; u s i t r a n s ( v n e ;; u s i t r c, n ) 1) e r d e c ay i o e.~; I ~ ~ ! ~' -,- *~ !f
that at tha low decay-energy the K-capture iz, .nc~,
When the decay to two urper levels is
K/,~' can b(: determined according to th& tabl,%S by zwelfe-
(ref. '0), The values 5400 and 400 thi~,s ubt~i,nel a~-- ~-r~
h~ ch . ccnse-juently a considerable rart of
1 10
Ca.rd 2/5 of 110 () m-i5t take place by way of K-ca, tur~~ 1 n t.

10() 160
The Decay of Tb and 11 c-rid tl~e- ~;chf-nc' Of IJj-
second short chapter the deterrainLtion 3f t~;e ] ul t
plicity of trLnsitions is s.~own and its are
in the form of a table. - In the third tho
160_ -wn ("o
of the Dy levels is treated. A level scl w of Dy
was here cr,--ipiled ~-,-ith the use of all e;-,perizmerital data.
theoretical considerations and the analo(.,,y with the
neiChboring nuclei. This scheme in the best uiara,or
curreslonds to all data. All arCwnents confirmint; thi3
scheme are Given here and all facts contradicting this
scheme or facts whioh ccrinot be cyplairied are en.ijeraTed.
There are 8 fi,-u-res, 12 tables, and 19 referen-leS. e cf
which are Soviet.
ASjOCIATION: Fizicheskiy institut Lenin,%radskuGo
r,
universiteta ii.. A. A. Zhdanov,-:L (I.'Istitul-' for
in the Le;Lingrad Jtate University imeni A.
AVAILADLE: Library of Con,-re3s
Card 3/3 1. Terbium-Decay 2. Terbium isotopes (Radiotctive)

AUTHORt Peker, L. K
22- 2 1 ~/l 7
TITLF,j On the Decay Scnemes of Some Odd Odd Deformed Iluclei (0 skhemakh
raspada nekotorykh nechetro-nechetnykh deformirovarir_~,kh yader)
PERIODICALt Izvestiya Akademii Nauk SSSESeriya Fizicheskaja,
Vol. 22, Nr 2, pp. 216 - 227 (USSR)
ABST11AM In this paper At was attempted to construct the level schemes
of some odd-ode nuclei on the basis of the existinG experi-
mental data on the pl.. and r. spectra and to coordinate them
with the respect-1ve theoretizal conceptions. Ir thc, ~hapterzz
The level scheme of , .2d154 the decay scheme accordin,3 to
__V 4 Z-9 0-
Stephens is referred to which is cons-idered to be tio conpli-
cated. Simplifications af this scheme are proposed hern. Pro-
ceeding from thi.? exampte i'~ stated here that the val~,,es
K - 0 and K - 2 can be ohosen if at least the multipolLir
order of one of the four I( -IineeR 1005.4; Q196,61 875,7 and
757,36 keV Is known, beoause I n the cage of K - 0' they are
all of type E !, or. if K - 2 they refer to the type E 2-
Card 1/.5 The paper contains a tabie with the theoretical &!-,J experi-

48-22-2-1-',/17
On the Decay Schemes of Some Odd-Odd Deformed Nuclei
mental data on the ratj,:,q . whi ch are combined t _^ a.,. in ter. 31 ty
enerGy of the transitions. In the chapteri
The level scheme of G d 5 6 it is referred to the respective
64 :~92
data in I-Now Ta~loar Data" ( 1957 ) which ~ hovloviir , are r-
sidered to be 1,ic.omplete. 'I'liorefore in tniB paper the con-
struction of -a bc~eme or. the basis of the theoretical con-
ceptions on tne pvjperties 3f the levels of the deformed
odd-odd nwlei is proposed, In the chapcer~
The level schemE! of Er 169 reference is made to the data
68 ,00 1 6o
on the d e c, aw aper-trLim ..f' T.~ (Ref 17) and At izi otatud
here wit'i respe--t t-D Er 168 that in thx9 case r lines are
abstint, which may ht? lritprpretad as 71-transitions from the
high level of t!ip type 2t or 1. Vierefure the assumption is
made here that 3uci; a level is missing up to the iuitation
energ,- Lind theref~)rfj t),e vibration level 2_~ Jn By., 8 A u a t 1) 1-,
somewhat higher. In the chapters
The level scherie-of 7 V1184 it is 9tated that 'rhe excitation
ID 184
Card 2/ 5 -T-ese _7_e v-e T-s'- t ak e ~t p) a-'c"o i n the g, - d e:! ay o f
of t -,13" &.1 A. 0

On the Decay Schemes of Some Odd-Odd Deformed Nuclei
4i: - 24"-2-1 ~/l 7
and in the G-decay of 7,Rel84. For the purpose of a clearer
ell
determination or these 16 slRere data are the
184 and the 7'-spect lgiven or.
-lines of Ta rum of Re 4 and it is
stated that 17134,,- must have the +energy of 1 10 keV, and
that the second rotation level 4 must have the ener.-Y
360 keV and 'hat "apparentlV' the --linc 240 keV -iust cor-
respond to the transition 4 --* 24. Por the deter:.-,ina tion
of other ii -lines the levelss 1000, 1190, 1295, 1455 and
1500 keV are introd4ced. In the chapter:
The level schem 1186 the analocy with Cs 181~ wit'n the
e o 74 112
same number of neutrons is used, and the suppositi~':~ is made
that in W 186 the level 730 keV exists, which is cornected
by the transitions 730 and 610 keV with the levela G+ and 2 +
(K _04 ). For a clear determination of the re-vAnin, lines the
levels 930, 1030 and 1440 keV are used. --'he i.c3iti,~,n f t!-.e
Card 3/5 line 1150 keV is here considered to be not clear. In the

On t!ie Decay Schemes of SuLtz Odd-Odd Defor-.1ed lluclei
P 23
chapteri The level sche,_-.e 01 0~~U ~',ese levels are traced
- 140 "' I I i
back to the f,-decay of Pa'~)-, the F_ -Jecay 17""' a~- 4 'he
236. n of V-e sche:je for U232 is
.4 -decay of Pu onstructi, .1
arLlojuous to that (if '2 h (Ref J) Pu "Her 1 ~he
T.-lines 589 and 455 keV corresponl to the rotation levels
(K-O-); 436 (1-') and 502 kcV (3-). The levels 868 and 943
1:0V (if they exist) can be related to K=O. "he values of
K/L for the lines 668 and 021 keV Lire not contradictory
to the multipole order E 2. In the chaptert
The level schene of PU 240 these levels are put into rela-
04 12_6 244. -e assumed that
tion. with the (X-decay of Cm It is her
the level of Pu 240 of 600 keV represents the vibration level
with V-0. TLe ~.-decay of the isomeric state of Np240 is
accompanied by ^r -lines 1400, 900 and 560 keV and the E -de-
cay in Am 240 by 1400, 1020, 920, a,8,9 and 42,97 ~~Refs 26, 27).
Card 4/5 In order to place these lines correctly the analogy with

On the Decay Schemes oil Some Odd-Odd Deformed Nuclei
J ~'
1/1 7
PU 240 was used tojether with the assumptioi, tl-.at a vi~ratiori
level 01 940 kcV and the levels 1020, 1060 haV (band with
K=24.) with spins 2+ and 3+ exist. As a conclusior, tables
of results and their explanation are -iven. Theve are 8
fi.-rures, 5 tables, and 29 references, 7 of 'ahic~) arp Soviet.
ASSOCIATIONt Biblioteka All SSSR
(Library AS USSR)
AVAILABIZi Library of Congress
1. Nuclei (Deformation)-Beta spectra 2. Nuclei (Deformation)-
Glamma spectra
Card 5/5

4C-2?-2-17/17
AUTHOR: Peker, L. K.
TITLEt On the Peculiarities of Nuclei With Small Def,)rmation Para-
meters. The Properties of 00190 (Ob osobenn~Dstyakh yader
76 114
a malymi parametrami deformatsii. Svoystva On 190
76 114
PERIODICALs Izvestiya Akademii Nauk SSSR Seri a Fizicheo