SCIENTIFIC ABSTRACT OSTROUMOV, V. I. - OSTROUMOV, V. V.

• Document Type: CREST
• Collection: Scientific Abstracts
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• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Sequence Number: 3
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

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Investioation of ihe An-,ular Distrinution of Particles fr'ori 2heir
-Traces-in a Photo-emulsion.
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AUTHOR o OSTROUMOV,-Y.1. PA - 2101
TITLE e -Hsi~tegration of Aj- and -TIr nurlei by high energy ;,rotons.
(Russian)
PERIODICALi Zhurnal Eknyerim- i To(jrot. Fizi,,I, 1957, Vc: Nr 1,
liec-.'ied, 3 ' 1)~7
ABSTRACTt Thf. present paper inv(stigates the interacti.)n of protons with
the enerLzies 130, 143 and 660 MeV with the heavy nuclei of a
photoemulvion. lh~s apallatior, process is conposed of a cr-scaue
process and an eval-oration process. The here described metlit.d
has already been described on a previous occasion (OSTRO-,'MOV,V.1.,
Doklady Akademil Nauk SSSR, 1955, Vol 103, p 413).
Experimental orderi The author usen plates with a fine - grained
emulsi,n P-9 as well as plates with the emulsion NIKF1 Typ K f3r
parallel tests. The thickness of the photo layer amounted to 150 t"-.
The emulsion recorded protons with from 30 - 55 MeV, and on the
occasion of an experiment carried out with 1AO MeV the sensitivity
of the emulsion was N'IKF1 100 YeV. Irr6diaticn was cerried out tith
a collimated bindle of protons with 140, 46C, and 650 MeV or, the
synchrocyclotron of the Institute fcr FucleE.r Problems of the Academy
of Science of the ~j.S.S.H.
Card 1/3 ExDerimental Results.i A dia(,ram illustrates the distribution found

PA 2101
Disintegration of Ag and Br nuclei by high enerfry protons
(Russian)
here for the recoil nuclei over the range of the enerK.Ps -,62
and 660 ;~eV of th~- impingine protons. This curve is bised I,on
1483 cases. F,~rther diagrams demonstrate the distribut-on Dver
the x- ind y-com;~or,enta of velocity, the modifications of
velc,citi--s for stars witn different numbers of rays, the velocities
of the progressive motion of the target nucleus compatod therefrom,
and the dependence of the namber of black rays in a star on ex-
citation enertry. From these curves it is possible to determine
the distribution of the cases of interactior of fast i roto.,s with
Ag- and Br-nuclei over the amount of the excitation. ener;.-.y of
these nuclei.
The energy spectrum of protons: "he energy cf the proions in the
nuclei was measured from the length of the traceb wnic.-. are
brou6bt to a standstill in the photoemulsior.. Ihe energ-y spectra
of protons ~or more exactly: of the simply charged particl~-g; in
the stars :or:7.ed by the protons with .:60 and 660 MeV are shown
in form of a diagram. f-ith increasing excitation ener6y also tne
.1b1 ack" component of "knocking out" increases. Moot particles 3f 1_~%
energy : E C 71 MeV) are emitted towards the rear, which may be ex-
Card 2,13

PA - " I j I
Disintegrati,)n ~)f A,.: ai.d Br nuclei by high %~nf~rt~y ~r,~tons
(Rus a ian )
plained by the effect roau(,e(i tj tr,,~ mutior, of t?i,! ~-.va,,,-~ra*.-
ing nucleus- ifowev-r, in the case of high energie~i, the ef.`ect
produced by "knoc~lro,, out" becomes noticeal,j'e, and a lar6 r namb,r
of protons is emitted in the direction of the front hemisq;,~~ere
The share of the kr.Gcked out particles ran 1,e det4,rmined frc.)Lz
the total anisotro,j ol,served Further possibilities ior tne
determination of this share ai-e given
kSSOCIATIONt Radium Institute of t~,p Academy of Science cf the J S.SAi.
PRESENTED BYi
SUBMITTEDt
AVAILABLEi Library of Congress
Card 3/3

AUTUORSt Vaeanciv, i'. A bs t rk)az,iuv V 1
TITLEz a - Pa r c I e i i t t bj 11 - i v e i n e A t
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PE'll I OL ICA L: Zhirn-;l Lr:iperim~~ntall,.j., i T~rct-tic.',et3!:o., r--iki,
VL.' Nr 159 'JSLR
ABSTitA ~:T. A ,%, t' t d
t a, trip ray s;.d t'.e
t
siGe are i: a iariwiliel ~uz;iticz. t, fiCl- LLt-dr. O-er~'j 01
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AUTHORS: Ostroumov'-v. I., Filov, a. A. 56-6-4/47
TIT U: Apiglar Correlation Between FragmientB and
the Charged Particles Emitted With the Fisnion of
Uranium Nuclei (0b uglovoy korrulyataii mozhdu oskolkami
I zar hennymi chastiteami, ispuskay~mymi pri delenit yader.
urana~az
PERIODICAL: Zhurnal Ekaperimentallnoy A Teoreticheskoy Fiziki, 1957,
Vol. 33, Nr 6, 1335-1340 (USSR)
ABSTRACT: Nuclear emulsions of 100 and 200 P thickness, which were
saturated with an aqueous solution of NaUCI 2(C2H3 02),, were
subjected to the action of a proton beam (if 660 M~V. The
fissioning of the uranium nucleus was connected with the
forming of charged particles. A total of 5201 fissions
(1156 in the thicker emulsion) were recorded. The "beam"-
compo&ition of the fission, i.e. the distribution of the
light, charged particles produced by the fission, amotinted
to:
0 beams - 45,7 ; 1 beam - 25,3 %; 2 beams 15,7 %;
3 beams - 8,5 ~; 4 beams - 4,2 %; 5 beams 1,' ~
Card 1/2 6 beams - 0,8 %; 7 and more beams - 0,3 %,. The ratio tatwe,~ri
Card 212

i ,
) - I 1-- 1 . ,I /) I, v ,) ,/, I
VAGANOV, P.A.; OSTR(XJPIOV, V. 1.
Ali)hp pnrticles emittvd by henvy nurlei eynbodded In tne emulsion
following high-energy nroton bomb-rdment. Zhur. eks-. i tpor. fiz.
11 no.5:1111-111(i N 1~7. ~MIRA 11:1)
1. LpniVrndi3kIy uolitokfinif-hosiriy institut.
(Aloha rnyn) (Protons)

V,I, GSMII OtNOVO (N.')', ivanova)
" '~NG'Ikil CORA~-l-WION oF PARTTCL-7.' FI331,~',,
MJCLEI Irili)Ur..-:D BY 1:1 *,:.-' 1,1.lw-;i-,Y MeTi-IL', dli,-,

21( j)
AUTHOPS: SCV
TITLE: Vulti-CharCed ?article3 Emitted Durin6 the Nuclear SplittIng of
Caruon Ly PrOLOr.3 Nitti Fner6iea of 660 Mev (Mnotsozaryadn~ye
chuutitjy, ij~ujtayeu4ye pri ra3shcheplenii Juder uglercda
mi a enurgijay 660 YleV
PERIODI~;AL: Znurnal et,.operiwentai'nc~~ i te,rutichtisKoy flziki, 1950, V(,'
Nr 6, pp 1. 11,ljo-15f 1 'U3SR,,
AB3TPACT.- ().V. Lozhtiri, N.A. P-!rfiluv (Rof 1), V.1c. ~iiorov, it.l, uryev
,Ref ') as owell as -3trcu;Luv, ilerfilov und It.A. kilov , Rof
alreaaj iicreeci in this fielJ. Trm results tkiey obtainerl ur,~ lis-
cussed 1r, ~~hcrt in the introduction. The au';nors the[LSOiVf'~; lr-
vujtigatud :.ul Li-Qharged parLicles emitted oy ctirlion rX 1-i
ed with 660 Mev prc4orit;. The tar&et conjioLed of' a 2(Athicy, tlcly-
3t)-rene wnich was paitea or, to the pnoLopiaLe. The frae;--nts
eatitte,: uy the liln~ were rocurded in the emulaion iayer
Proton irra:11atiuzi was Larriud out on the syrichrocyclotron -; Lrje
Olial UniLe-, IniLiLuLe iur Nuclear Rejearc.-i). Kxijoourt- vaL3 i,-,
three o.'ientationj of Lne emuljiori towards the main
Lhe UeaM'. u~ jarallel, 1)' vertical, rnd c' at an angle oi' Tne
Card 1/13 results obtained t.) the inveo t 11,a Lions are very cl,2arl, sz.LAT,

Kul ti-Charged Partici,_~; ?j_e r S itt g a L) r,
Protons With Rnerelos of 0,60 Mev pLI in
figures Is and 11);
.vigure la shows trie connucLiur, between the total
ness of the trace T anu the i,arLicle range R at an an6le _f in-
clination tuwarcbthe vaulsion plane of up to 300i i6ure IL, srcNj
the aame for an angle between 30 axid 600. Tile curves (.sLralntq
4 8 8 14
for He,,,Li , B , and N are hithin the ranges '.0 Z_T ~30C and
3 5 7
5 .4 R -4 40,it. Figure 2 "owa the corresponding trace diitriuution
according to T, and figure 5 Ghows the enerij spectrum of the frag-
ments with a range of >40~,; figure 4 shows the angular 11:~triz)ution
of the fragments with respect to the proton beam comijar-LI with that
calculated in reference 1. (The calculation method is di3CUSSed in
an appendix to this paper). The authors further investigated the
effective production cross section 6' for multi-charged particles
f rag
from C-nuclei. The proton flux was determined according tQ tne
number of stars formed in all plates on emulsion nuclei. The itar
production cros8 section is 1060 mb (Ref 6). For 6. tile value
I ra
1.4 � 0-5 mb is given. This value holds for the emission of
Card 215 particles with a range of >20 and a charge of >3. The effective

~'4
kulti-Chmr,Sed Particles &.ittel LA,rinE tne N,,iclear Splittiag 11 CarLcn '-j
Protons With Ener6ies of 6(,.0 &ev
cro3s section for Lne emission cf a Li nucleus with E>1C Nle
equal to (5 t 2).1()- " (' em ". Tne experimental data o0taine ' ut~reo
*ell with those obtained by Lozhkin and Perfilov (Ref I).
In conclusion, tl)e autnor3 thank U.V. Lozhk-n, Yu.l.
and R.A. Filuv for tnoir help and diE3CU3310[1J, and N.A. i'orfilr)v
for his interest Ln Uiis work.- fhere are 5 fieures and -1 refemnces,
6 of -.vhicn are soviet.
ASSOCIATION% Lenln6radskly loiltektinicheskiy institut
(Lenin(;rad luulytecnnlr. InjL-iLute)
3UBMITTED% June 1 1 -~-o
Card -'/'5

A U r1lo 09 t ro,i,-..o v, r i 2 r v,
IT LI:: C ascad e 3L - a r c lo s t, uc I r Fiss ion Caused by
Pro t o np, ',': -, t Erk- r~-- i r, - ~(- 0 :L rill 0 Me v Ka c ~--a I r
oic - cl.a i v -;,% 1, r~ r.). c 1. o I rc, v
pro to naml s r.- r(,-,. yo,,-
I ~~ D I C A,,: -- I i u r na I e f-~ r e i i t -t n oy i to ro t i 7, 1 V 1
'701 36, :;r
_ !- s j 11 u
AB S',"-..A C 7 In tl.eir iri'rr.~dijCtj')j., tj., 11, t,
by S e V C. r 2 1- -,1 t J r) r: C, 1, 0 -1 V,, i t~ t I-,,,
In t~ e r 1 11, V (I ". t i -,l t j 0 n 3 f
of cy-pirticl,~,n w~ ti, ibovc- ~O I,( v r, N
The inv.,. or'. -.rri,- out r-, 1- 1, t ~- j 1
ne -,. T-,. i n, -i r ir, i i I s;7, r, c t v, tC)
30-40 v.-o rc ~,ub f, c te I - %c t 1 o r.
and 660 ~rntc- borim o' the Cb"yedirteni.~~- i!,E-i ",it
i so I elo V'I ni e T!-- t i tu*(, ror 1;uclear
platen ~v~ t.) t r:3 - n t T1 i n i I,,,- oL - t ra c k S E Ac o ril,
0(.
Card 1,!4 17 e re c s (, i i r ~i n: i i n 7 X - 1- t

Cascade cx-I-PrticlPs in .7;u~-I. -~r F14sslon
Caused by ;-'rotons -ev
was l(-)c;ttPI i t, t~~,. 1;1.ot,-)l y-r in -;)-c1 tl.,. 'r--K f,
an a nj7] - 0"' Mev,
Card ;f/4

12 S/056/62/04 5 /005/U(.)4/058
Disintegration of the C nucleus ... B163/BI86
i. e. the number arising from simultaneous breakup of the C 12 nucleus,
is plotLeci against U Be' there is poor agreement with the theoretical
distribution according to Sach-' model (Phys. Rev. 103, 671,
whereas much better agreement with theory is achieved if the resonance
interaction of the a-particlee is taken into account. Cases where
6.5 Mev U C