SCIENTIFIC RESEARCH

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00809A000600210143-0
• Release Decision: RIPPUB
• Original Classification: R
• Document Page Count: 2
• Document Creation Date: December 22, 2016
• Document Release Date: June 24, 2011
• Sequence Number: 143
• Publication Date: January 26, 1949
• Content Type: REPORT

Sanitized Copy Approved for Release 2011/06/24: CIA-RDP80-00809A000600210143-0
FOR OFFICIAF USE ONLY
Sanitized Copy Approved for Release 2011/06/24: CIA-RDP80-00809A000600210143-0
F
COUNTRY USSR NFORMMATION 1945-1947
SUBJECT Scientific research
HOW DATE DIST January 1949
PUBLISHED Periodicals ~
WHERE
U y O.OF PAGES 2
PUBLISHED t79SR ,~2
JAN 2 5 15D5 ~\ ~1'~U
DATE
PUBLISHED 1945-1947 JeOga, OFFICJAL USE OKLY. PPLEMENT TO
LANGUAGE Russie+n REPORT NO.
L_
SOURCE Documentary as indialted. (I oomatioan requested.)
BRCS i'LY PUBLI8K D M3ABCH OF THE PHYBICOC AICAkL
nmTITurs ACA1fD r oracnxm, UEIkAIk1IAU 88R, nARwv
"Thermal Conductivity of Bismuth at Iov Temperature;"
3. HIe!lyt, Phys Tech Inst, Aced Sol, Ukrainian (188,
Miarka7
"Elevation of the Yield Point an Anmr-ling of
Twinned Calcite," A. 1. Oarberp Phys Tech Inst,
Acad Sci, Ukrainian 881, Ebarkbr.-
"7.hvr Ekeper I Teoret Pttlki" Vol 4, 1946, PP 923-7
Even though stress- relieving annsallng of cold-worked
crystals was general], found to result in a lowering
of the yield point 7, renevvd rise in Yon further
annealing at a higher temperature (7800 for AI01)
we also observed. Eluoidation of the relation be-
tween inner elastic stresses and strength was sought
by measurements on calcite crystals where twinning
In plaatio deformation, resulting in enhanced strength,
givca rise to re maoroeaopio streso regions. Raotan-
uLsr-prisaatto plates 8-20 mat large the cross section
(3 3 x 4 to 7 x 9 mm) ooinoiding with the symmetry
plane of the twins, were subjects& to deformation
resulting in a twinned layer along the orove section.
The yield point Y was determtr..ed by aioroseopio
observation of the twin layer under increasing lands;
the sans deteraiaatioa was repeated after annealing.
Obly ink cases out of 24 did Y remain u+tahanged;
 Sanitized Copy Approved for Release 2011/06/24: CIA-RDP80-00809A000600210143-0
these cases include anneals from. 12 hours at 4900
to 10 minutes at 2200, rate of cooling 240-3200/
hour.In all the remaining oases, Y rose after
annealing, the ratio of increase being for exaspls,
1.51 (5 minutes at 4600), 3.5 (8 hours at 4400),
and 4.3,5.35, 5.69 (fromn 40-50 to 185-262 SAC
re) for three "lee treated together (7 boors at
5100). There is no explanatitA for the unchanged
Y in five cases, nor is there any obvious relation
between the change in Y and the conditions of
annealing. It has, however, been established that
annealing of twinned calcite never results in a
lowering of Y art mostly raises it. The residual
changes can only be located at the boundaries be-
tween the twinned layer and the unaffected part of
the crystal, That the latter are ant acdifled was
demonstrated by restoration of the original condl-
tion thro-agh reversal of twinning and subsequent
renewed twinning deformation, A new twinning layer,
produced after annealing of the original one, shows
the usual low Y, about 100 6/s4-w? as e
with about 300 for the annealed Sayer.
"The interaction of y -Rau ' With !latter and the
Spectroscopy of 7? -Radiation," 0. D. latysbev,
Physicoteoh last, Ac d;Sot, ThsainI n 0520 . Nbirkov
'Revised Modern Physics" Vol 19, 1947, pp 132-45
A discussion of the work by the author, at al, with
the ssgaetic speotogrspb. The relative Y -line
intensities for ea C obtained from a study of its
recoil electron spectra and internal conversion
positron spectra are as foliowst 0.30,' 1.00;6,2.41,
0.37
0
fcr .41, 2.42, 0.40,^0.34, 0.71, 1.19, 0.44, C e 1i i 2,YN, V' WW' W' kW' 1,01:0, 1,Tb1, 1,690,
1,620, .1,520, 1,370, 1,890, 1,234, and 1 120 kev.
The relative ) -lino intensities to Th(C 4 0') ob-
tained from a study of its naisurel f ray spectra sad
recoil electron spectra are as followst 10.0, 6.s,
11.0, 6.5, 10.0, 100 for the lanes 1,350, 1,300, 1,600,
1,800, 2,200, and 2,620 ksv. The effective arose
section of the photoeffeot per ata in On, Ag, 'As,
and Pb, obtained.fras a study or their pphotoeleotran
werefoound t besin the ra Imp (1?` 0.2?t (9~~ '1.1)t
(74t8): (120tH). This Crow ssotion,aw, -.,ales
with 2 in the interval fra Z e 99 to 2 s 82 in the
manner oq, r k. PJc; n a 4.6 # 0.25. The absolute
ve .ue oR % f zr Ph was found to be (1.3.t 0.41) x 10-24,
in agreement with the theoretical value. The con-
clusions of the Dirac relativistic quanta mechanics
in the region of several asv energies are adequately
verified by experiment, Twenty-Cone references.
- aBD -
STAT
Sanitized Copy Approved for Release 2011/06/24: CIA-RDP80-00809A000600210143-0