SCIENTIFIC ABSTRACT KOGAN, A.V. - KOGAN, B.I.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000723610005-7
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: September 19, 2001
• Sequence Number: 5
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

.30'1/56-35-5-42/56
AUTHORS: Ko _'Kul'kovj V. D.9 Nikitin, L. P., Reynov'p it. mot
okolov, 1i A*,@. Stellmakht MO F&
TITLE: Measurement of --the 0-y-Correlation of- Orientated Nuclei
(lemereniye'o-y-korrelyataii oriyentirovannykh yader)
PERIODICAL: Zhurnal.eksperimentallnoy i tooreticheekoy fiziki, 1958,
Vol 35, Nr 5,.PP 1295-1296,(ussR)
-ABSTRACT., Reference is. first made to moms earlier papers dealing with
this subject. When investigating correlation, the aut
hors
'
constructed a device for the orientation of nuclei'and took
several measures for the purpose of extending the,duration
of measurements and improving their statistical accuracy.
The main source of heat supply is thermal radiation, which
passes througha light pipet.mbich ioused for transmitting
the flashes of light produced in a plastic sointillator
during the recording of P-particlea. The P-34iation asymmetry
6o
of Cc -nuclei was measured. These cobalt nuclei were intro-
duced into a thin superficial layer of a cesium-magne,eium-
Card 1/2 nitrate crystale The authors carried out their measurements

S07/56-@35-5-42/56
Measurement of the P-y,-Correlation of Orientated Nuclei
of the 0-y-angular correlation on orientated Cc 6o-nuolsia
The provisional data obtained by these measurements tire not
in contradibtion to theoretical ealculationa which were car-
ried out on The basis of the conservation of combined parity4
Further, the'inveatigaiion of P.-y-angular correlation for
52 48
Yn and V is.planned. The authors thank A. I
. Alikhanov,
.
Academician, and Profeenor S. Ya. Nikitin for placingthe
56
'Co attheir dibp6sal (this elemeni is, by the wa
s-
less well
,,
suited forlmeasuremonto of the here described kind they
5
further express their gratitude to A. Z. Dolginov for many
.useful discussiogg, and to 0. V. Larionov for the chemical
'
aeparation
of Co . There are 2 figures and 6 referenoest
I of which is Soviet.
ASSOCIATION: Leningradakiy fiziko-tekhniaheakiy inBtitUt Akademii naukSSSR
(Leningrad Physico-Te'bhnical Institute of ilia Academy,of Sciences,
USSR)
SUBMITTED: July 9t i958
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AUTHORSs Kogan j _AA_,@44 Kullkov, V, Dj Nikitin,-LA-P,, Reynov, N. U.,
-Sbkolovg,-@ Is Av jStellmakht-- M. P.
TITLEs 1he Polarization@of So Nuclei in Iron
71
PERIODICALs Zhurnal eksperimentallnoy I -teoreticheskoy fizikiq@1960.
'Vol. 399 No.@ -1 (7), pp. 47-52
TEM B. WA Samoylovq V. Ve Sklyareyekiy' and Yeo P. Stepanov (Refs. 8-10)
succeeded in polarizing'th4 nu'614i of-a number of weakly magnetic-.,
elements alloyed with.ferromagnetics. They discovered-the possibility of
01rienting the nuclei of many elements including soandium. In the present
paperg the first results found by tho authors on the orientation of
46
so introduced into iron are published. Fig. I shows a schematic cross
section of the apparatus employed for the purpose. Its description.le
given in the introduction. To-cheo'k the'Working of the apparatus, experi-
60
ments were first made on the orientation of Co in iron (:-' 0.02% Co)
which are described in detailo Fig, 2 shows the asymmetry of the gamma
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82598
46
The Polarization of so Nuclei in Iron 8/056160/039/01/06/029
D000070
60
radiation of Co . as a funoti6n.of temperature. The asymmetry is oharao-
terioed by a Next,- the experiments carried out
on scandium are described. The neutron irradiated scandium was introduced
as a metal intopure iron (So concentration & 0.5%). A-large number of
asymmetry measurements of the.gamma radiation from S0.46 were mude in the
temperature range of from*O#03 to 0.0150K. At the lowest temperatures
E w2.5%. The.sign ofthe asymmetry agreed with the known dipole charac-
46
ter of the.caseade gamma transitions in.T:L Fig. 3 shows the asymmetry
of gamma radiation fortemperatures of the cooling salt between
0.025-0-030K. was also measured for other temperatures. It 0.04-'0.050K,
t was 1%, at 1.2oKp however# it was 1.8%, showing that the temperature
dependence of the asymmetry of gamma radiation for small values of 1/T
cannot,be determined with sufficient accuracy. The magnetic moment of Sc46
was not measured. Btillj it can be estimated with sufficient accuracy
to be 3-5 nuclear magnetonso from which the effective magnetic field on
14,46 nucleus In iron forl/T - 25 is found to-be Reff 105 oerst eds. The
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The Polarization of So46,Nuclsi,. in Iron 51056J6010391011661029
B006/BO70
possible errors in.this-daterainat'ion are*then discussed. They are
related to--the errors Inthedetermination of nuolear-magnetio-moments,
E, and T? and the error resulting.from.imperfoot domain orientation.
Taking these into Iaccount R lies within the limits 3X-105,* ]g 6
off 5r. 11 5 46 off
16 0.1-05 @ 09, for Co 60 and .0 to, TIO* 10 Wf' 1.50-10 00 for So . Finallyp
the possible investigatione,of-pr~~dorrslttion for oriented So416 nuclei
are very briefly discussed. The authors thank Professor K. P. 3athin for
making available metallio scandium, and Professor A.Z. Dolginov for the
derivation-of--tbeasymmetry formula. G* R. Khutsishvili and L. M.
Shestopalov of Fiziko-iekhniobeekiy Institut AN_SSSR (P_hy_P1va1&chnia&L.-
T."a t4 fjj to_o.L ttLe, A-0-SS-BRL are mentioned. There are 3 figures and 21 reter-
encest 7 Soviet, 8 American, I Canadian, 3 Dutch, and 2 British.
ASSOCIATIONs L;ningradakiy,fiziko-t4khnioheskiy institut Akademii nauk
8 SR (Leningrad Physicotechnical Institute of the Academy of
-Sciences of the USSR)
SUBMITTEDt -February 20, 1960
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AUTHORSt Lakh V. Is,.Eoganj A. Y.t Engineers (LIvov)
TITL& Vanisbing-@ilament pyrometere
PERIODICAM Naukai zhizn' no. 3PA961t 43
TEXTs The article describes operating principles and. functions
of pyrometere and mi ogo pyrometers. intended for the measurment of tem-
peratures above 29000 0. The Soviet vanishing-filament brightness.py-
rometer'OnnOP-017' HOPPIR-017") is capable of measuring temperatures
up to 6100000. The filament-o'f a.special incandescent pyrometer lamp
vanishes when its brightnese'reaches the@same value that is emitted by
the heated body. The value is measured by an am-meter whose current has
been predetermined and gauged for,the filament of the lamp. By measuring
the amperage of t 'he lamp thetemperature of the heated body can be de-
termined. To keep up with modern precision requirements special absorp-
tion glass and diaphragms have been used. For the measurement of tam
peratures, of thin wirest incandescent.filaments of electric lamps eta,
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S1056 6210431OOV91 63
B102YB104
Kogan, A.- VL@Kullkov,- V. D. Nikitin, L. P., Reynov, N. U.
AUTHOR
4:@; @emiakj M. F., Bhott, M.
J1 I TI 71-4. Asy=etry@ in'. P-radfation from some nuclei polarized in an
iron-d
ontaining alloy
.PERIODICAL: n iteorsticheskoy fi ikil v 4@0 rp,
Zhurnal eksperimental oy j
no. 3(9)j' 1962o,828.830
166 192
TEXT: The- authors measured-the P-emission asymmetry of Re Ir and,'
114
In nuclei polarized at 0.1-0.030K in an iron alloy,. using an apparatuej..'
described in ZhTF, 29, 1039,195.9-or ZhBTF, 35, 295, 1958. The values ofl.
jjhH -@nuclear magnetic mometntl - H effective field acting on the
eff n eff
nucleus) we're'
determined 1 rom the asymmetry given as
$(T@ a [W(OO) W(n)1/[W(o0) + W(-x)l - A(v/o)flt
when, or allowed P-tra@hsitions, I + A(v/o)f 0084. W(Oo) is-the,
P-radi4ti.on recording.probability if the magnetic field is applied in the
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diation from"aome.#* B102 104
Asymmetry in -ra@' YB
direction of the d(tector, #(R) is' the same if.i?has th 0 posite direction;
A is a factor de@erding only on the -spine I, @Lnd 1.0 (1 I@I I of final and
0
in Iitial states, f nuol ear polarization' coefficient, V@- angle between.
the direction,of niclear p.plarizat ion and that of particle emission. For,
Re and Ir the @ quantity.. 1018 PUH ef was "termined, from the slope of tile
straight line E (ift) giving 8tl.for Re and 00-5 for Ir. These values do
not agree with the results of V-4nisotroyy measurements (2-5tO-5 and
12t 1 - 5) 1 1 - e. the@ @el ati on t.0 (T)'_- :A(v/o).f cannot be us ed. Sine a for these
that .H 144
nuclei AO,is free of tensions while on r - R, x.