SCIENTIFIC ABSTRACT GVOZDEV, V.S. - GVOZDEVA, M.A.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000617720013-4
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Sequence Number: 13
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

GVOZDEV, V. S., RUSOOV, L. I., FIMIONOV, Yu. I., and KIIAZOV, Yu. L.
',!Investigation of Nuclear Isomerism in Rf 180M " Nuclear Physics , V. 6, (1958)
PP. 561-574; (North-Holland Publishing Co., AmsterdamT. -
abst: The cogfficient of internal conversion of the 57.6 keV transition in the L-shell
of Hf 160m was measured and found to be vQ -_ 0 - 33 4- 0. 10. The ;", -transition is
shown to be of the El type. A 501.2 kev-,;-transition has been detected;
measurements of the internal conversion coefficient yield-tv-,,~:0-035-i o.ol4.
The 501.2 keV -/-transition is of the E3 type. The level with an excitation
energy 1 142.9 keV was found to possess a spin 9 and negative parity. The
experimental lifetimes for the 57.6 keV and 501.2 keV Y -transition exceed
those predicted by the single particle model by respectively 1G" and 10"
times. This large diserwpancy is due to the high forbiddenness of the
-/-Transitions with respect to the quantum number K. j
Internal conversion coefficients have also been measured for/-transitions Bf
93.3 keV, 216 keV, 332.4 keV and 443.6 keV energy. The transitions )(_ere all
found to be of the E2 type. The cross section for production of Rflwmin the
(n,~,') reaction has been determined and found to equal-"-.--0.18-i_0-07 barns.
Phyrsico-Tech. Inst, Acad. Sci. US" -"R

2 j (8) SOV/56-306 -2 -5 2/O/_
.aUTHORS: Gvozdev, V. S., Khazov, Yu. L.
TITLE: The Production Cross Section of Te125m Accordin,- to a (n.,j)
Reaction (Secheniye obrazovaniya To 125m po reakteii (nj7))
PERIODICAL: Zhurnal eksperimeritallnoy i tooreticheskoy fiziki, 1959,
Vol 36, N'r 2, pp 632-633 (USSR)
ABSTRACT: The authors measured the formation cross section of the i4soneric
state of Te 125 of the spin 11/2, the (n,Y) re;-.-ction was used
for this measurement. The above-mentioned cross section was
determined by comparing with the cross secl;ion of the reaction
IT f180 181
- (n,Y)Iff which was assumed to be equal to (10 + 3)
barn. The radiation sources for the measurements were prepared
from the separated isotopes*Te124 and Iff'", they simultaneous-
ly were irradiated in a neutron flow. The spectrum of the
electrons of the internal conversion of T125M and Ta'81 (which
are produced in the P -decay of 11081) was investit,-ated by
means of a P-opectrometer. A diagram shovio, the K-lines of the
internal -c onvers ion electrons of the y-trunsitiors of

Card 1/2 181 125r-
Ta . (133.02; 136.25; and 136-85 kev) and of Te (100,.1 kev).

'The Production Cross Section of Te 1251A sOV/1)6-36-2-1j2/63
Accordin- to a (n,y), Reaction 12511
The production cross section of Te accordinT to the
reaction (n,y) can be calculated by determininj the ratio
of the intensities of the lines K 109.1 and K = 133-02
it was equal to (40 + 25) millibarn. "he ratio ol the forma-
-~f T~125m 25 'spin 1 12)
tion cross sections spin 11/2) and Te
amounted to 0.006. There are 1 fi.:,ure and 2 references.
ASSOCIATION: Leninggradskiy fiziko-teklinicheski.- in~-titut Akademiii nauk
SSSR
(LeninF~rad Physico-Technical Instituteof the Academy of
Sciences, USSR)
SUBMITTED: Nove.-,,iber 6, 195B
Card 2/2

silo f0-7_1 /1- 12
B 0 1 9 'B 0, 5 6
AUTHORS: Gvozdev, V,. 3 ',ER
~usinov, IL._IJ(Deceased), and Khazov, Yu,L
TITLE; Study of the W 182 Level Scheme
_~77_
PERIODICAL: Izvestiya Akademii nauk SSSR_ Serlya fizicheskaya, 1.960,
Vol.. 24, No. 12, pp. 1444--1448
TEXT: The present paper was read at the 10th All-Union Conference on
Nuclear S2ectroscopy.. which was held in Moscow from January 1 to
January 27, 1960. For the study of highly excited W182 levels, the
internal conversion coefficients of a number of f-transitions were
determined. The excited W 182 levels were obtained from the f -decay of
Ta 182 .(half-life III dayo), which had been obtained from the reaction
18 1 ry 182
Ta (n,t)Ta . The meaaurements were made with a P-spectrometer with a
_11F2_focusing of electrons, In order to avoid an action of the TU183
produced in the above-mentioned Ta de-ay (half-life, five days), the
measurements were carried out 40 days after neutron bombardment, For
Card 1/4

Study of the W 182 Level Scheme S10481601'():'410121'OC,11!~~)11
B019/BO5'6
energies of the internal conversion electrons of up to 100 kev, sources
having a thickness of 0.5 mg.,cm-2 for energies of from 1000 to 1200 kev
-2
with 1.7 mg.cM , and for 820-960 kev, such having it thickneo-,, of
13 mg~cm_2 were used. A conversion line was found, which is --lose to an
electron energy of 1088.8 kev,. The authors conclude. that, an excitatLon
energy of 1255 kev must be ascribed to the level , from which a jk -tran.-II
tion with an energy of 1158.3 ki~v occurs., The internal conversion co-
efficients were obtained by comparing the intennities of the converaion
electrons and the --emission of the -transitions con,
q.idered with those
of the conversion electrons and the radlation of the 1222-kev transi-
tion . The conversion coefficients and the multiplicities of' the W 182
transitions are given in Table 1. Table 2 shows a comparison between the
experimental and theoretical relations of the p -transition probabilities
B(E2). D~ A. Varshalovich is thanked for a discussion.. There are 4 figures,
2 tables, and 10 references; 6 Soviet, 5 US, and I Danish,
Card 2/4

182
Study,* of the Level Scheme
ASSOCIATION: Fiziko-tekhnicheskiy institut Akademil nauk SSSR (IRntitute
of Ph sics and Technology ok the Academy,of Sciences EZR
Text,'to Table 1: 1) Tra Insition energy; 2) Theoretical value of the con-
vers:4on coefficients; 4) tntens.4ty of the conversion electrons;
5) Iritensity of y-radiation; 6) Experimental values of the conversion
coefticients; 7) Multipli6ities.
Ta6zinrta 2
CpaBnenne 11 V01wnrucitux oTnowenstfl nPitnewoutwx x1ep-10MA
1-nepexopa c oCmero ypowin 0 7clop(MilleCIMUH
/1 Z)ITeprim D03-
MAMR,2 3tieprnn
67
Tpocall Y-ftepexoAn.
(k, curtit U keV
qeynocn
S/048/60/024/012/C01/011
B019/B056
Catin it
-IMIOCTh T3,lbt?Oe COOT-
P011C4110ro Howetit
COCTOR1111H B (Ega
B(=)
no POOTam no nPatittay Asarn
K-0 K-1 IC-2
1222 893 A+