SCIENTIFIC ABSTRACT LALUZA, K. - LEBANIDZE, SH.A.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000929010004-6
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 31, 2001
• Sequence Number: 4
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

UDAICV, Yu. F., I-and. med. nauk,, imyor ined. GluzhbY;KUZ1A,'TS0V, M.T., kand. biol.
nauk; IAZUTYATSKIY, N.P., kapitan ined. sluzhby.
Results of giving mass doses of vitamins to flying personnel ii-ader
Arctic conditionB. Vben.-med. zhur. no.1:69-71 Ja 059. (MIRA 12:3)
(AVIATORS, dis.
vitamin defic. in Arctic cond., prev. with massive vitamin
ther. 0*4xo))
(VITAMIN DWICIEN010, prof. & control
in aviators In Arctic cond., prev. with massive vitamin
ther, (Rua))

_7
The New Brucellin RD and Tularcmia 14 Allergens," by Yu.
Parnas and K. Lazuza, Chair of Microbiology of the Medical
Academy and the Department of Anthropzoonoses of the Insti-
tute of Rural Hygiene in Lublin, Poland, Zhurnal M:Urrobio-
logii, Epidemiologii i Immunobiologii, No 2, Feb 57, p 92
The following is the authors' abstract of an article submitted for
publication 7 November 1956:
"To provide clinicians and epidemiologists assistance in the diag-
nosis of brucellosis and tularemia, we developed a new method of obtain-
ing brucellosis and tularemia antigens. We have called the brucellosis
allergen brucellin RD and the tularemia allergen, tularin M. Brucellin
ED is obtained from virulent and immuno"enic strains of Br.brucei var.
bovis Nos. 24, 544, and 36 during the S-phasc by breaking them down
@vith ultrasound (2,800 kc/sec for 90 minutes at 360C). Tularin M is
!obtained from S-phase strains of Past. tularensis in the same way.
"Illustration 1 [Photo No 2705511 shows the Brucella culture before
- treatment. with ultrasound; illuztration2 (Photo No 2705521, u'ter the
action of ultrasound.
3 7

4-
"Illustration 3 jPhoto No 2705531 shows the normal tularemia cul-
ture, and illustration 4 [Photo Do 2705541 shows it after the action
of the ultrasound (magnified 16,000 times).
"Brucellin RD and tularin M are only slightly toAc, sensitive,
and highly specific allergens. Their use in conjunction with other
diagnostic reactions significantly facilitates the detection of brucel-
losis and tularemia.
"Illustration 5 (Photo No 2705551 shows the reaction to brucellin
RD administered intracutaneously in a 0.1 ml dose (the Burnet test) to
a brucellosis patient. Illustration 6 (Photo No 27,05561 shows the
cutaneous allergic reaction to tularin M.
"We are also utilizing brucellin RD and tula7.1n M for the vaccine
therapy of brucellosis and tularemia," (U)

L h567)t-60 T,',-rr (m) /T JE
-A-cc--Nr----AP6023622
SOURCE CODE1 UR1031816610001001001210015
AUTIHORI Apafonov, A. V.; Osipov, L. N.; Rogov,_S. P.; Uzunkoyan, P. 11 Finelono-Yi-
P.; Zhandanovski;@ N. B. ; Perozhigina, I. Ya. ; Kci'm_&n_,_T._ V. ; Pis arcHlIFT771r.",
7*'@',Maslyov, V. I.; Khavk1n, V. A.;
4/1
GAGS All-Union Scientific Rnsnarch Institute of Petroleum Refining (Vsesoyu7,nyy
nauchno-isslodovatol'skiy insEitut po porara7oTke n5rt ovo sh
finor@q(Novokuybyshovakiy naftoperorabatrjayushchiy za 0@.)
TITLE: Experionco with CatAlytJc h djLqLrjStin acuum diatillate on the hydrofin-
_y, of v
1 ing assombly of the Novokuybyshov Petroleum Refinery
SOURM iloftoporarabotka i noftokh1miyAp no. 4, 1966, 12-15
TOPIC TAGS1 catalytic cracking, potroIrrmin product, gas oil fraction, diesel fuel,
Casolino
A,-,3ST-@ACTi The VJIINP has devolopod a vari ant of tho procoss f or prod,icing- (@-Iosol fuol@
involving ono-sten hydrocrac@ing of sulfur-containing vacuum dis%illates on an a m
nun-cobalt-molybdonum catalyst. Tho roaulLs o@ laboratory exporimonts with this vari-i:_
ant wore sucossfully appliod at the oxperinental indu3trial hydrofining assembly of
the Nlovkuybyshev Potroinum Refinery. The operation of the hydrocracking assembly is
described. The feed stock for the plant hydrocracking was vacuum gas.oil obtained
from distillation of sulfur feed stock. Distillation of the hydrogenate producedl .
!-.Card MCI 665.644.2;048,5t665,65B,_2_

L 45674-66
ACC NRt
dinsol oil which mot all the reglilrn-,on' s of GO-ST 4749-49 for DL fra-le; a rasoline
fraction characterized by a low sitlfur content (0-002--0.03), -* -latively @
a ro heawj frac-
tional composition (melting range 120*1800), and a low octane number (42), and Is
rocojriondod as food stock for cataly, tic reforming; the gaseous products methane (49.?
i-rt. lp), ethane (29.4%), propane (17.8@) and butanns (3.65). The residue of the dis-'
tillation of fuel fractions is recommended as food stock for catalytic cracking. It
iis concluded that the hydrocracking of vacuum gas oil on the hydrofining assembly of.
1NKNPZ confirmed the results of work carried out by the VNIINP on pilot plants for the
purpose of designing high-capaoity units. Orig. art. hast I figure and 2 tables.
SUB COM Ii/ SUBM DAM none/ ORIG REN 001/ OTH REF1 003
Card 2/2 fV

SZKODZKI, Eugeniusz-, LAZYGA. Kazimierz; SOKOLOWSKA, Bozenna; TWOREK, Romilald
Tularemia In Szczecin Volevodship. V. Infection of cattle with
tularemia. Przegl. epidem.. Warsz. 8 no-3:1?9-184 1954.
1. Instytut Medycyny Morskiej i Tzopikalnej, Panstw. Zakl. Higieny,
Inst. Medycyny Pracy Wei, Fanstw. Instytut ifeterynax7jny
(TULAREMIA. epidemiology
in Poland, infect. In cattle)
(OATTLE, diseases
tularemia, epidemiol. in Poland)

SHALOBANOV, V.P., FAYGEMLYUM, G.A., LAZYK, N.F.,iazn.
Train disDatcher communications by high-frequency channels.
Avtom., telem. i sviaz' 2 no. 8:24-25 Ag 158. (MIRA 11;8)
l.Nachalinik laboratorii signalizatsii i avyazi Dallnevostr,hnoy
dorogi (for Shalobanov). 2. Starshiy inzhaner laboratoril signs-
lizatati i svyazi DallnevoBtochnoy dorogi (for Faygenbluym).
3. Laboratoriya signalizataii i avyazi Dallnevostochnoy doregi
(for Lazyk).
(Railroads-Communication systems)

GULIKEVICH9 yu.V.; LAZYUKq-.G.l.-;_,GUL'KEVICH9 Y,-Yu-
The pathogenesia of .abnormalitieO and the Opecificity of toratogenic
action. Arkh, pat,22 no* 12:3-19 160. (1411di 14: 1)
(DEFORMIES)

L FY P M, A jj

SOSINA,
Incomplete oateogenesis. Zdrav. Belor. 6 no-3,09-60 Mr 160.
(KIRA 13:5)
1. Iz Beloruaskogo uauchuo-iseledovateliskogo instituta okhrany
Materiustva i detstva.
(OSTEOPSATHYROSIS) (FEMONIA)

,jaciaw, mgl- inz.
K1
pro dr-
LAZZARINI, Tadeu5z
ngineerlng Geodesy in the
,g the subsection of F
We are organizin,
International Federation of Geodesists. Przegi geod 35 nc.9:
389 S 163.

LAZZARINI,,ToeuoziAproj4
Rugimering _geodeity; methodo and requested preoioione Ptl.
Przegl good 35 no.3:LL1-117.Mr "-63.

LAZZARINJ,-Tadp-@ @Of-
Enginedring geodesy, its methods and required accuracy.--Ft-2. Przegl geod
35 no-41153-158-Ap 163.

1vau of raMa"Itti-vo 1@,Otnpea b Wud@@ dllr!"z,@@,,-j-41,WO j-,.
42,
follot"I'Itc 3 C-Xpd. I"Cthwj,- Im. d.-,cu3-sed and
m0hA r.(cozNvctjtIvv renzo%%O of hycr-, from tile mrfaCe
11m diffusirmt prmcm and dem. cf the colicn, of- ttv@
AN twt(crkl; :(b) abselt-pbla -mQIlryl; tile radia-
-Iof-tise
vIty -Nitliumm e 1, drrmoufl by it .1 bit
@, -T@-L
lattice mtc@
IL surfa" in mntact, Va- Ii
-tL-
material. A tublv contg@ the isotope. @ te
kmi for t,,e s--iftEfitislon ufAu,--Ag,Zu. Cut'
Fe, M and W alid [&@o thu dilrwsion uf Vb in MC12, PbT.,,
sq
7 if
Jill

V Ov,
A UT HORS Antropov, G. P., Zysin,
TITLEj Reacri5n Cross Section
gY of -:5 MeV (Sechenlye
s energiyey 15 Mev)
SOV/89-5-4-01/24
Yu. A., Kovrizhnykh, A. Lbov, A. A.-
258 237
j (n,2n)U With Neutrons of an Ener-
reaktsii U 238 (n,2n)U 237 na neytronakh
PEXIODICAL: Atomnaya energiya, 1958, Vol 5, Nr 4, pp 456-457 (USSR)
,.BSTRACT: In 1952 erwas measured.by the authors for U 238 (n,2n)U 237 for
En = 15 MeV as amounting to 1,5 � 0,2 b. As, in the meantime,
new values have been published which are in contradiction to
those mentioned, measurement was repeated in 1957.
A 4n-counter was used for measuring. The value 6' n,2n was meas-
237
ured from the activity of U and from the fission products
238 99 140 141
of U , namely Mo , Ba. Ce . A value of 0,90 + 0,15 b
was obtained by these measurements. This is in agreement with
the value given in reference 1, but in strict contradiction of
the value given in reference 2. Comparison with the results
given in reference 4 leads to the conclusion that the value of
;.12 O,qO b is highly probable.

238 237 SOV/89-5-4-9/24
R,@action Cross Section U(n,2n.)U With Neutrons of an Energ)r of 15 MeV
N. P. Martynov, 71. P. T-imofeyeva, and N. V. Shuvanova partici-
pated in the work of chemical preparation. There are 4 ref-
erences, 2 of which are Soviet.
SUBOTTED: April 17, '1958
Card ?/2

2-1(7) SOV/69-6-4-11/27
AUTHORS: Lbov, A A.,_ Naumovff 1. 1.
TITLE: Radioactivation Analysis by Using Neutrons With an Energy
of 14 Mev (Radioaktivatsionnyy analiz s primeneniyem ney-
tronov s energiyey 14 Ifev)
PERIODICAL: Atomnaya energiya, 1959, Vol 6, Nr 4, PP 468-470 (USSR)
ABSTRIACT: 1) a) The'reaction 0 16 (n7p)N 16 was used for the purpose of
determining small quuntities of oxygen. The material to be
investigated and several standard mixtures are fastened to
a rotating disk and irradiated for 15 seconds with 14 Mev-
neutrons [D(T,n)ue4-reaction1 - Following this, measurement
of activity is begun by means of an end-window counter. In
the course of 1.5 minutes, activities are measured every
10 seconds, and by comparing the activities (sample mixtures
on the one hand and standard mixtures on the other) it is
possible to determine the oxygen content of the sample. In
order to obtain equal measuring conditions the samples and
the standard mixturea are preasod into tablets of 1 g weight
and 21 mm diameter. In the case of a neutron flux of
107 _ 10 an/cm 2. s, a sensitivity of - 0.1@6 is obtained by this
Card 113 method. Measuring accuracy amounts to + 10%. b) The second

SOV/89-6-4-11/27
Radioactivation Analysis by Using Neutrons With an Energy of 14 Mev
possibility of determining oxygen is the following: L16 is
built into the samples to be investigated. These samples are
irradiated in the reactor with a neutron flux of
11 2
@1.3.10 n/cm ,s. The tritons liberated from the reaction
L16 (n,a)T act upon 016 and, according to the reaction 0 16 (T,n),
produce the nucleus P 18 , the activity of which is measured.
The sensitivity of this method was determined in dependence
on the Li 6_ content and amounts to between 0.1 to 0.01@-
2) Similar methods were worked out for the purpose of deter-
mining silicon and phosphorus; the following reactions were
used: Si 28 (n,p)AI 28 , P31(n,a)A,28.The sum activity is measured.
Without separating the Al 28 , it is possible from the ratio
of the various reaction cross sections, to determine the up-
per limit of the Si- and P-content of the samples. Sensitivity
is about 0.01%. 3) In order to determine sulfur, chlorine and
phosphorus in organic compounds and graphite, similar methods
were developedt and the following reactions were used for
Card 2/3 this purpose:

3OV/89-6-4-11/27
Radioactivation Analysis by Using Neutrons With an Energy of 14 Yev
P31 (ny)P32 , C135 (n, a)p32 . The irradiation of 4 samples and
2 stendard mixtures takes 12 to 24 hours (neutron flux
108 to 5.10a n/cm 2. sec). The exact process of determining P32
in Grganic compounds is described. The accuracy of P-deter-
mination is about 0.011111o. The use of high-intensity 14 Mey
neutron sources such as are today available makes it possible
to increase the sensitivity of determination by 2 to 3 orders
of magnitude. Yu. A. Zysin gave valuable advice and also dis-
cussed the results obtained. There are 5 references, 2 of
which are Soviet.
SUBMITTED: June 26, 1958
Card 3/3

yu.A.; KIRIN I S. - OSEYAYEVA,
VLASOV, V.A,; ZYSIN,
L. .; SELIGHEIIKOV, L.I.
ertain fragments in Th 232 fission by 14.3 Mev.
(yield of c ody nekotorykh oskolkov pri delenii Th232
neutrons] Vykh 14,3 mev. 140:Jkv"-t Glav. upr. po is-
neitronami 8 energiei
atomnoi energii pri Sovote 14jr,istrov SSSR,
pol'zovaniiu. (@JJRA 17:4)
1960. 11 P-

S1089V6010081041051009
B113/ '.017
AUTHORSt Zysinp Yu. A., Kovrizhnykh, A. A., 1@bov, A. A.9
Sel'ohenkov, L. I.
TITLEt Cross Section of the Reacti n Th 1,2 (n, 231
Neutrons of the Energy 14.7 0mev _Ln L@i t h
/I
PERIODICAL: Atomnaya snergiya, ig6o, vol. 8, No. 4, PP- 36o-361
TEXTz The cross section was determined by a method which is based on the
231 99 140
activity of Th and the fission fragments Mo and Ba o The method
has been described in a paper by G. P. Antropoy..: at al. in Atomnsya
energiyaq 1958, Vol. 5, No. 4, P. 456. 14.7-Mev-neutrons were obtained
4
by means of a low-voltage linear accelerator from the reaction D(T,n)He
Mixture irradisteds Th(NO 3)4' 4 H2 0, U308* Six irradiations were made, the
irradiation lasting from three to eleven hours, the total neutron
emission of the individual samples was at (2 -!-6),1014n. According to a
Card 1/2 V/

232 j. ;@ I
Cross Section of the Reaction Th (n, 2n) Th'@, S/089/60/008/04/05/009
With Neutrone of the Energy 14-7 Mev B113/BO17
formula given, the reaction cross section of Th 232 (n, 2n) Th 231 with
14-7-Mev-neutrons ia found to be 6Th - (o.65 + 0.15) barn. The authors
n,2n
thank "K. A. Vlasov, A. S. Kovaldov M. Lartsev..V.-R....Negina,
N. D. Osyayev for their assistance.
SUBMITTED: October 21, 1959
Card 2/2

/V
32988
S/641/61/000/000/015/033
to 6 0 6) B104/B102
AUTHORS: Vlasov, V. A., Zysin, Yu. A., Kirin, I. S., Lbov, A. A.,
Osyayeva, L. I., Sellchenkov, L. 1.
TITLE: Yields of some fragments in Th 232 fission by 14.3 Mev neutrm)
SOURCE: Krupchitskiy, P. A., ed. Neytronnaya fizika; sbornik statey.
Moscow, 1961, 235-240
73 83 89 91 95 99 ill 115 12-,--m
TEXT: The yields of Ga , Br 9 Sr I Y , Zr , Mo , Ag Cd Te
Te132, and Cel4l fragments produced in Th 232 fission were studied by
radiochemical methods. The 14-3 Mev neutrons were obtained from D(T,n)He4
reactions, the deuterons of /vl50 kev were obtained from a low-voltage
linear accelerator. The specimens were irradiated with a neutron flux of
8 2
approximately (0-7-2)-10 neutr/cm .sec for 5-25 hr. The hermetically
sealed cylindrical containers contained up to 90 g Th(NO 3)4*4H20. The
irradiated thorium nitrate was dissolved in water. From this solution the
fission fragments were isolated by four different methods and identified
by measurin# their P-activity. The absolute fragment yield was determined
Card 1/0

32988
S/641/61/000/000/015/033
Yields of some fragments in B104/B102
by a method in which the sum of the relative yields of all fission fragments
obtained by interpolation of their mass distribution curves was equatedto
2000/6. In this case triple fissions are assumed to be negligible. The
results are summarized in Table 2. A comparison with the results obtained
by A. Turkevich (Phys. Rev@, %
.�A, 52 (1951); Phys. Rev., 89, 552 (1953))
shows that with increasing neutron energy the fragment yields in symmetrical
fission increase. The authors thank K. N. Borozdina, A. S@ Kovaldov, V,
M. Lartsev, N. D. Osyayev, E. V. Plyusnina and R. N. Sorokina for their
help with these studies, There are I figure, 3 tables, and 10 references.
3 Soviet and 7 non-Soviet. The four most recent references to English-
language publications read as follows: Katcoff S., Nucleonics, 16, 4, 78
(1958); Steinberg E. P@, Glendenin L. E.,, report no. 614.1 held at the Firk3,
International Conference on the Peaceful Uses of Atomic Energy7 Geneva
1958; Strominger D., Hollander J. M.y Seaborg G. T., Rev. Mod. Phys., @0,
565 (1958); Leachman R., report no, 2467, held at the Second Internationai
Conference on the Peaceful Uses of Atomic Energy, Geneva, 1958-
Table 2. Fragment yields in 14-3-Mev neutron induced Th 232 fisaion.,
Legend: (1) isotope measured, (2) relative yield, (3) absolute yield, in
/7
Card 2/V

v
26608
S/186/61/003/004/007/007
E037/EI19
AUTHORS: Martynov, N.P., Bochkarev, VoAot and -Lllqy,7_ A*A*
TITLE: Enrichment of U237 using the Szilard-Chalmers method
and uranyl dibenzoyl methane
PERIODICAL: Radiokhimiya, 1961, Vol-3, No.4, PP. 508-509
TEXT: The Szilard-Chalmerz method, which is based on the
lormation of recoil nuclei, is frequently used to separate
isotopes of the bombarded element which are formed in a nuclear
reaction. The following conditions must be observed in using this
method: a) the recoil energy of the atom formed must be
sufficient to break chemical bonds; b) the isotopes formed and
the atoms of the original element should be in different chemical
forms; c) the atoms formed during the bombardment should not
exchange in their new chemical form with atoms of the irradiated
chemical compound. The Szilard-Chalmers method has been used to
concentrate U239 (Ref.2-. J.W. Irvine, Phys. Rev.: Vol-55, 1105
(1939). Ref.3: K. Starke, Naturwiss., Vol-30, 577 (1942). j1-
Ref.4: L. Melander, Acta Chem. Sland., Vol.1, 2, 169-177 (1947).
Card 1/5

26608
Enrichment of U237 using the .... S/186/61/003/004/007/007
E037/E119
Ref-5: A.H.W. Aten, Jr., N.I. Beers, D.C. de Groot. J. Inorg.
Nucl. Chem., Vol.5, 159 (1958)), and U237 (Ref.6: A. Melander,
H. SAtia, Phys. Rev., Vol.74, 709 (1948,). 'In the latter case
solid uranyl aalicaldthyde o-phenylenediamine was irradiated with
fast neutrons, left until all the u239 had decayed, and then
dissolved in pyridine. The U237 in the resulting solution was
adsorbed on charcoal and desorbed with ammonium carbonate. The
authors obtained an enrichment of -500 and a U237 yield of
15-20%. The present authors chose as initial compound uranyl
dibenzoyl methane which has a much lower tendency to hydroli:?@e
(Ref.7: R.B. Duffield, M. Calvin. J. Am. Chem. Soc., Vol.68,
li2q (1946) and Ref.8; H. Goette, Angew. Chem., A, Vol.602 1: 19
(1948)) (hydrolysis lowers the enrichment coefficient and the
yield) than uranyl benzoylacetonatei the latter .1,3 considered by
Starke (Ref.3) to give the best results for U239. The
uranyl dibenzoyl methane was prepared from uranyl acetate and
d-4benzoyl methane in methanol following the method described in
Ref.9 (Rukovodstvo po preparativnoy neorganicheskoy khimii
(Handbook for preparative inorganic chemistry) (Pod. red.G.Brauera)
Card 2/5 Izd, IL, M. (1956)

26608
Enri-Ihment of U237 using the .....
s/186/61/003/004/007/007
E037/EI19
(Editor G. Brauer)). After recrystallisation the product
contained 34% uranium. Before irradiations it was purified with
BaC03. 2-6 g of the uranyl dibenzoyl methane in a plexiglass
,,,assette were irradiated in a low-voltage 14 MeV neutron
generator (using the D(T,n)He4 reaction). The cassette was placed
about 3 cm from the centre of a T-target; the irradiation time
was 3-5 hours and intensity -1011 neutrons per second. After
Zrradlat�on the contents of the cassette were dissolved in 20 me
a%--etone with the simultaneous addition of a ouspension of 10 mg
BaC03 in o.6 mt H20- After mixing for 15 minutes the precipitate
was separated by centrifuging and then it w4o washed with acetone.
The BaC03 was dissolved in dilute HN03 and 0.1-0.2 mg of an Fe3+
salt added to the solution. The uranium was precipitated on
ferric hydroxide using C02-free ammonia. After washing with
aqueous ammonia the hydroxide precipitate was dissolved in 0.5 mt
conc. HN03. The resulting solution was a-counted on a Pt disc.
The thin layer was then washed with conc. HNO and the U237
purified by precipitating the uranium on '%KY -1 (KU-1) cation
exchanger followed by washing with a Trilon B solution to remove
the contaminating activity. Further purification was carried out
Card 3/ 5

266o8
Em-ichment of U237 using the S/186/61/003/004/007/007
E037/E119
an inorgan.1c acid
on the anion exchanger -3AB -.10 (EDE-10) usig
,
(HC1 or H2SO4) as aluant. The amount of UZ in the initial
preparation was determined by weighing and Ln the U237 enriched
sample by a-counting in a 2JU ionisation chainber. The P-activity
of the U237 was measured using a standard toi7sion counter and
standard targets for P-counting were prepare(i by shaking 20 mg of
SZ-ound U308 in alcohol and transferring the isuspension to a paper
f_41t@*r. The U237 enriched preparation for tlie standard targets
for the p-counting was diluted with uranium to 20 mg U308' For
determination of the total U237 activity in it@he irradiated sample
-200 mg was roasted to U308. The purity o1C the p-preparations
was determined from their decay curves. To determine the
c@ontribution of p-activity due to UXI and UX;a 20 mg targets were
prepared from non-irradiated U308. The same purification
-orazedures were used for both irradiated and non-irradiated
samples. After subtracting the components due to UX1 and UX2
f:rom the overall decay curves, straight line:s were obtained with
slope corresponding to the half life of U237 (6.7 days). The
a!-.tivity of U237 at the moment irradiation coased was used in the
:-alc-ulation. In sele-c-ting the above optimum conditions for
Card 4/5

266o8
Enri,chment of U237 using the ..... s/186/61/003/004/007/007
E037/EI19
separating the uranium with BaC03 the authors studied the effect of
the amounts of water and BaC03 added to the uranyl dibenzoyl methane
a4,9t-one tc-lution on the amount of uranium and U237 separated and
&Ise the affect of mixing time of the acetone solution and the
aqueous suspenslon of BaC03. The method described above gives a
U237 -enrichment of -8%. Acknowledgments are expressed to
Yu.A. Vasil"yev for carrying out the irradiations.
There are 9 references (8 non-Soviet and 1 a translation in Russian
from a non-Soviet publication). The English language references
2-bad an follows:
Ref.l: L. Sz-ilard, T.A. Chalmers, Nature, Vol-134, 462 (1934).
Ref.2: as in text above.
Ref.5g as in text above.
Raf.63 am in text above.
SUBMITTED: July 2, 1960
EAbstra