SCIENTIFIC ABSTRACT YE.S. CHERENKO - P.A. CHERENKOV

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000308410007-8
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: June 12, 2000
• Sequence Number: 7
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

CHERENKO, Ye. S.
"Variations in Growth Characteristics of Different Types of Early-Ripening
and Early-Bearing Apples,," DOk. v-s Ak. Selkhoz. Nauk, No. 5, 1948.
1

Guilmov. A.
Kos~t impo,itant task or soviat communication workers. Radio no.8:
Radio no.8:1-3 Ag 154. (P-LU 7: 8)
I Unstitell alidetra avyasi SSSR.
(Telecommmication-Imployees)

GHERENX A.; STAYKOV, St.; TOTTf, Karl Erik; BANSEGI, Ferents (HA5BL)
-03L.- -
Victory of the pooled resources of the U.S.S.R. Radio no.12:7-10
D 961. (MIRA 14:12)
1. Ministr svyazi.RSFSR (for Cherenkov). 2. Prezident Shvedskoy
radiolyubitellskoy assotsiatsii (for Totti). 3. Chlen Mentrall-
nogo komiteta Oboronno-sportivnogo soyuza Vengerskoy Narodnoy
Respubliki (for Bansegi).
(Radio operators)

AUTBDRS:Chereukov
49,Alltshulerr
.D.p
ZhaAam vskiyt-l(.B..
A'J
S~.v MyZhkov& K.K.,
_Z, and
Shnayder, G*'O Osipovj, L.
65-6-6/13
TITLE: Wdropurification of sulphurous petroleum products on an
industrial installation. (Gidroochiatka serAistykh nefte-
produktov,na pronyablennoy ustanovke)7.
PERIODICAL: 'REhimira I TakhaoloxW Topliv&i.MaselO (Chemistry and
TeemolLogy.or suels.551MUlDrIcOza) ItD7t 116~061 W-36-41
(USSRY.
ABSTRACT: It Is expected that- bydropurification of sulpimrous pet-
roleum products vill be'widely used in the 11,8F.Srt. in the
near futu.7*. On the basis of data on the process obtained
by VNII NP and LEN NII9 an industrial plant was designed
and built by Giproneftezavod on one of the refineries4 The
plant Is described (fig.1)'. The-process is carried ;~%
using alumo-cobalt-molybdemim catalyst (developed by VNII
NP) and hydrogen (990), obtained by catalytic conversion
of hydrocarbon gases-. Straight,run distillates and second-
ary products are being treated to produce Diesel fuel
(GOST 4749-49). Plant operatimg conditions are given in
table 1 and the results of purificktion of straight run.
distillate from a mixture of Mukhmaovskoyt Tuymazinskoy-
cWt 2/3 Devonskov and Bav1i:qskoy crude oils, -light gas oil. from

R,ydropurification, of sulpharous petroleum products on an
industrial installation'. (Cont'.) 65-6-6/13
catalytic crackirg (from 200-5000 fraction) and a 1:1
mixture of the above two distillates in table 2:. The
degree of deBulphurisation 95'.2-95AC The analvsis of
ases obtained during tqdropurification is given in table 3.
e circulating gas-before-the absorber (with monoethan I-
R
amine) contained 6.7-6.9 volume % of bydrogen sulphidep
after the absorber - 0-.1%. The nean. balance of the prod-
ucts of bydropurification is given in table 4.. Hydrogen
consumption for straight ran distillate was 0.38 wt % Bad
for gas oil fiom catalytic cracking - 0'.71 wt %. E~rdrqgen
used for the reaction was 0.27% and O.60%-respectivel 4The
sulphur balance is given in table 5. - Up to 0.03% of 3
calculated on the raw material used is carried out wit,
treated fuel and Is-removed by was4izg with 2.5 - 4% NAOR
solution. The,alkali consumption 0.1 kg per ton of Diesel
fuel The workim
,g period of the catalyst without regenera-
tion to 8000 hrs. The regeneration of the catalyst is
carried out at a temperature not exceediag 5500 under-40 atm'.
pressure'with a mixtu e of an i rt as with airs. Izitial
oxygen concentration W.2 - Or.251%1 Oand at the end of the
Card 2/3 regeneratizg period is increased to 1.4jr. When the main

of sulphurous petroleum products on an
industrial installation:. (Coati) 65-6-6/13
part of the *coke* was burned outp the remaini% part was
removed by increasUg oxygen concentration to 2% and pre-
heating the-gas to 520-550 C (2 hours)'. Total &ration of
the regeneration process 20 hours. The initial activity of
the catalyst is completely restored. When the plant was
stopped for inspection it was found that the upper layer of
the catalyst was covered with iron sulphide*. Accumulations
of iron sulphide were found in 'various placesy i".e'.1 the
corrosion of the apparatus was noticeable', The parts of the
apparatus containing R 3 and ~2 at high temperatures were
made from steel ZM, tVe remaining part from mild steel'.
Apparently;,thecorrosion resistance o:t'15* steel was in-
sufficient. The precipitation of iron sulphide on the
catalyst has no apparent influence on-Its activiti. There
are 5 tables and 1, figure'.
ASSOCIATION: Wjj n; 0 - ft)"
r9W
VT A 107:

CHMNIOV, A.P.
O~r~ Pass.Ing of quast-norml fluctuations through a detector vith a
low-frequency filter. Tsvt.Kovk,un,Ser,m&t*q =kh,, astrone, fise,
khIm. 12 no-3, 057. (KIRA 11:3)
40.%S-/J-j
1,Kafedra kolebanly Noskovskogo osudarstvammogo universitetao
(Radio detector* (Radio filters)

BARK, L.S.; BOLIS!40~, L.H.; RU7-hIM!-GV, FJ.; CHEiiENKOV, A.I-.;
DIUR, V.A., prof., otv. red.; GRLOVA, !.A.~ red.
[Ray'Leigh-Rice tables of di.:31,ributlon] Tablitsy raspre-
delenlia Relaia-Raisa. Moskva, Vychis"'IdtelIrryi tsemr,
1964. 2-45 P. O."IFIA 180)

ACCESSION Nit: 01,69634 S/0052/64/009/002/0303/031?,
AUTHORs Cherenkov, A. Pj, (YAscow)
a Contra with emu rwAom perturbations bw maw of single sititchlag
SOM= t T*wl^ veroyatnostay L yoye primenenlyaj, v. 9, no. 29 1964p 303-317
TOPIC TAGS a random perturbationp sAtchUS theory, optlnl conWol
Aiswrns Lot x a jxj#e**#3rR) be a vector of pass coordinates, C JS
a vector of random variables disturbine thexotl6n of the sys
tqu,, f a vector
function, and
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;-t(t'x--GN 1>0-
and the initial state of the system is
6 x A 6) jet
(3)
and for t Ir the ftnotiona fi(xf) wW have discontinuities only of the first'.
C"d

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kLnd, 71s said to be the moment or jndtohbq,,.Giv~n..th9 functioma
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s
act to (3) exists j Wme -tho motion of the phase point x is completely known,
ubj
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are 9,iven. The author treats the problem of ii6cou''K 'r 1~'ninlmLzs'ths
Varian"
of the functional V,, The switching time can depend on the past, but not on the
future. Consideration Is restricted to solutions djt) which depend only on the
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---
PA 173T91

avel A.
"Cherenkov Radiation by 340 MeV-Protow," Physikalische Bl4tter, Heft 12/1951,
page 566.
TFMLATION AVAIIABLO, -ATI-49-52, 12- Jan 52

WIZWK, John Graham. 1911; XOMMIN, Tu. L C translator]; PARAMY, L.T.
[translator]; ZA=T, L.Q., khudD&hulk; CHNIMUT, P.A.. redaktor;
-UEASINOTA, B.S.. tedwicheekly rodaktar.
[The principles of cloud-chamber tekhnique; translated from the
3ngli.A3 Usera. Villsona. Plarevod s'angliiskogo W.L.Kokarina 1
1.2'0 Disradsel. Moskva. Isd-re Inostriumoi lit-ry. 1954. 151 p.
(Maud chhalier) (an 7:8)

Category : USSII/Nuclear Physics - Zle=entary Particles C-3
Abs Jour : Ref Zhur - Fizika, No 1, 195-1, No 367
Author : Kurziosova, L.V., Hazorenov, L.A., Cherenkov, P.
Infit : Phyxi. Inst. USSR Acad. of Sciences
Title ' : Scattering of 250 Mev Photons by Free Electrons
Orig Pab : Zh. eksperim. i teor. fiziki, 1956, 30, No 4, 69o-694
Abstract An investigation was made of the Cmpton scattering of 222 233 and 235
-- 248 Mev photons for c&ses,-vhen al st the entire photon energy is
transferred to the recoil electrons. The electrons and positrons formed by
the photons were deflected b7 a magnetic field aid recorded by telescopes
made of counters.. connected for double coincidence. The values of the
Compton-scattering-dross sections were determined from the ratio td the
value of the cross section of the Torme& paits. The relationabIps db-
tained ari in agreemient, within the limits of precision of the measurements,
viththose calculated frow the Bethe-Heitler equation for the palr-formation
cross section and from the Klein-141shina-Tam equation for the Cmptron-
scattering crosseection.
Card 1/1

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qtoMof

-
-11111M

1C 1i f- R e N K V
USSR PHYSICS CARD 1 / 2 PA - 1473
-AUTHOR ADO'Ju.M.9 6ERENKOV,P.A.
TITLE The Energy Distribution in the Spectrum of the Incoherent Radi-
ation of Electrons Moving in a Synchrotron.
PERIODICAL Dokl.Akad.Naukp 110p fasc.1, 35-37 (1956)
Issued: 11 / 1956- reviewed: 11 / 1956
Here the energy distribution of the radiation of monoenergetic electrons with
the energies of 1501 225g 250 MeV in the spectral domain of from 4000 to 6100 1
is measured. The electrons were acceleratod by means of the 250 YeV synchrotron
of the Physical Institute of the Academy of Science in the USSR. The s---.)ectral
analysis of the radiation was carried out by mea-as of a prism monochromator be-
fore the input gap of which a photomultiplier was fitted. The signal emitted from
the output of the photomaltiplier was led to a parallel current amplifier with
negative feedback coupling and from there to a loop oscillograph where~lit was
registered by a 5000 c vibrator on a photofilm. Together with the ligl~',-. impulse
also the signals of an impulse-ionization chamber, which are proportia'aal to the
intensity of the bremsetrablung and therefore also to the number of ae.',"elerated
electrons, were registered by means of the loop oscillograph. In this way it was
possible to normalize the oscillograms to the same number of electrons. Besides,
the impulses of the deflecting high-frequency aecelerating voltage were registered.
For each wavelength 8 to 10 cycles were recorded.. The monoohromator - photo-
multiplier system was gauged by means of a standard temperature lampi it makes the
recording of spectra within the interval of from 400 to 6100 1 possible. Treat-

Dokl.Akad'.Nauk, 110, fasc.1, 35-3T (i956) CARD 2 / 2 PA 7 1473
1hent of the oacillograms consisted in measuring the strength of the 1-ight im-
pulses at the moment in which the accelerating voltage was sw:'Ltched o'4, as
well as reducing-results to one Intensity.
The theoretically computed curves of the energy distribution in the SPectrum
of the-radiation of electrons with 150; 225 and 250 MeV are compared In a
diagram with the corresponding experimental values. The intensity dis:tributions
obtained at c,ertain electron energies confirm theoretical conelusions'within the
limits of measuring errors. The observed systematic deviation of experimental
points within the range of short waves (even though it does not exeeel the
limit of measuring errors) is apparently due to the luver degxee of accuracy of
the gauging of the spectral sensitivity of the apparatus within this range.
INSTITUTION: Physical Institute "P.N.LEBEDEV" of the Academy of Science in the
USSR.

120-2-8/37
AUMOR: Gorbunov, A. N., Spiridonov, V. M., and Cherenkov, P. A.
_'ObTITLE: An Application of the Wilson Cloud Chamber to Photonuclear
Studies. (Primeneniye Kamery Villsona. dlya Issledovaniya
Foto;yademykh Protsessov.)
PERIODICAL: Pribory i TBekhnika '.Eksperimentaq 1957, No.2,
pp. 29 - 32 (USSR).
ABSTRACT: The use of the Wilson cloud chamber in investigations
of the interaction between high energy gamm quanta,
though cumbersome, has the advantage that it makes possible
an analysis of practically all the nuclear processes
initiated by the radiation in the gas. In the present
article the authors describe a few interesting problems
occurring where the Wilson chamber is used in the investi-
gation of photonuclear-proces-oes induced by high enerf-,7
gamma-radiation (maximum energy 260 MeV) from the synchro-
tron of the Institute of Physics of the Academy of Sciences
of the USSR. The synchrotron generates impulses of gamma
xays at the repetition frequency of 50 secs7 In ordfr
to obtain the best possible working conditions for th,-,-
chamber a special working regime had to be establisheft for
the synchrotron and the working of the chamber synch:r:,,.r)nised
Card 1/3 with the emission of the radiation pulse. The proced Ik,*Ire

120-2-8/37
Au Application of the 'Wilson Cloud Chamber to Photonuclear Studies.
adopted was that given in reference 3. The procedure
involves an application Of the chamber to gamm ray studies
with practically no loss in the efficiency of the accelera-
tor. The intensity of the raPated beam of the above
synchrotron is 2 x 1011 MeV/cm at 26OMeV. and at 10m from
the targpt. The ener&,y flux per pulse is approximately
7 x 10? hOV/CM2. Special measures based on the results
of reference 3 which are necessary to eliminate the electron
and positron background had to be applied. These measures
were :- 1) the beam was injected into the chamber through
a side window covered by an organic film 74' thick; 2) the
beam was collimated by a lead collimator 15cm long placed
at 3.5m from the chamber; 3) a magnet placed behind the
collimator removed positrons and electrons from the y-ray
beam; 4) an evacuated tube was placed between the collimator
and the chamber so as to eliminate electrons and positrons
formed in air. As a result of the above precautions the
number of unwanted electrons and positrons associated
with the gamin beam was reduced by a factor of 1000.
The following working procedure was adopted. The main
expansion was followed by a fast (0 .5 see) compression
Card 2/3 and then by a slow expansion f ollowed once more by a fast

120-2-8/37
An Application of the I-Vilson Cloud Chamber to Photonuclear Studies.
compression. As a result of these procedures the chamber
vras effectively cleared of droplets after each expansion,
ectron background was reduced and y-ray beams of up
the eA
to 10 MeV per pulse could be employed with the camera
set for the detection of relativistic particles. In the
case of strongly ionising particles the working y-ray
intensity can be increased still further (by a factor of
5 - 10) if one works with a lower chamber sensitivity.
A graph of the synchrotron output as a function of time
(under working conditions), and 3 cloud chamber photographs
are given.. Thent. are 6 references, 5 of which are Slavic.
SUBMITTED:-December, 10, 1956.
ASSOCIATION: Institute of Physics
Of Sciences Of the USSR.
P. N. lebedeva AN SSSR.)
AVAIIABLE: Library of Coagress.
CardY3
imeni P. N. Lebedev of the Academy
(Fizicheskiy Institut im.

N KL~ Vj
SUBJECT VSSR / PHYSICS CARD 1 / 2 PA - 1959
AUTHOR CERENKOV,P.A.
TITLE The Soviet Exhibition on the Peaceful Uses of Atomic Energy
held at Peking.
PERIODICAL Atomnaja Energijapjy faso-1, 72-72 (1957)
Issued: 3 / 1957
On August 15th 1956, after a two months' running, the Soviet Scientific and
Technical Exhibition on the Peaceful Uses of Atomic Energy was closed. Many
of the more than 200.000 visitors had come also from other parts of China.
Among them were workmen and employees of various enterprises and factories,
university students, scientists, technicians, students of medicine# farmers,
soldiers, etc. Also the'ehiefe of the Chinese Communist Party and members of
the Chinese government visited the exhibition.
The following exhibita were shown: diagrams, graphs, photos, models of all
sorts of devices, as well as other material. Also material referring to the
efficient atomic power plants projected in the Soviet Union and concerning
the use of atomic energy for purposes of transport was shown. The methods em-
ployed in the application of marked atoms and of radioactive rays in tech-
nology, agriculture, and medicine were demonstrated.
Throughout the exhibition also films were shown which dealt with problems
connected with the peaceful uses of atomic energy. The collaborators of this
exhibition delivered dozens of lectures before a large auditorium. More than
50 scientific and popular scientific articles were written by Soviet and

Atomnaja Energija,.j, fase.1,72-72 (1957) CARD 2 / 2 PA - 1959
Chinese specialists for the Chinese press. In compliance with the wish ex-
pressed by some Chinese organizations a large group of Chinese specialists
of various fields of science were offered opportunities of becoming
closely acquainted with the material of the exhibition. More than 8000
specialists availed themselves of this opportunity.
The exhibition owes much of its success to the constant care and attention
displayed by the Chinese government. The author describes the organization and
carrying out of this exhibition as one of the numerous manifestations of the
close friendship between the USSR and China.
INSTITUTION:

OSIMAKOV, I.6.v kand, sellskokhoz. nauk; POLEZHLYEV, I.A.,, kande sellskokhoz.
nauk;,CHFMKOV, A.D., kand. sellskokhoz. nauk
--- -1.11
Growing sugar beets in the-non-Chernozem zone. Zhivotnovodstvo
23 noo3s45-49 Mr 161. (MIRA 1791)
1. VessoyusW nauabno-iseledovatellskiy institut kormov imeni
V.R, Villyamsa.

C9 E~ 17-AIWtv, ~~ PIA,
ADO, Yu.K.; CHBFSMT, P.A.
Incoherent electron emission in the synchrotron and *one applications
of this phenomenon for studying the performance of acceleratom
Atomeenerg.suppleiment no.4:49-56 257. (min 10:10)
(Synchrotron) (Particle acceleratorO

A -4--
I-, ]'~ C~ i I . ;.
, I
JMLTAK, A.Ya.; INKSLER. V.1.; KASUNNIKOV, T.N.; CHIRMOT, P.A.; TABWWF, B.S.
Special features of the 280 Nov syuchrotron operated.by the Institute
of Physics, U.S.S.R. AcadmW of Sciences. Atou.9norg.suppleuent
no.4:57-72 157. (mm 10: 10)
(Synchrotron)

DIMOV) F. P.J0 wd CHUMMY$ P. A.
-Pavown A" No7a= 24 No at mmehmf~ des Reaction
phpUmclealms 27Ai ( ~"-, '2ju'), We, ( r, 3pn)3Ip--(
- -C, 41)3n) at 11.2 8( ~,503n)
dm 19 dmlm dlmwglo des pm juqula 26Mv.
Report womted at the Intl. U019-s" for Nwlsw Utemotlow (Lev luergy) =d Mwlsw
Btmwtwo, Paris, 7-12 Ju3LY 1938-

21M
AUTHORS:
TITLE:
SOV/56-35-2-51/60
Denisov, F. P~, Cherenkov, P. A.
24
The Ranges of the Recoil Nuclei Ila and the Mechanism of
Some Photonuclear Reactions (Probegi yader otdachi
Na24 i mekhanizm. nekotorykh fotoyadernykh reaktsiy)
PERIODICAL: Zhurnal eksperimentallnoy i teoreticheskoy fiziki, 1958,
Vol 35, Nr 2(8)v PP 54.4-546 (USSR)
ABSTRACT: Usually, the so"called "quasideuteron model" is used for
the description of the photonuclear reactions at highphoton
energies. According to this modelq the reaction is represent-
ed b_Y 3 successive processes: 1) absorption of the y-quantum
by a nucleon pair of the nucleus~ 2) intranuclear nucleon
cascade which is genel-ated by these nucleons, 3) evaporation
of particles from an excited nucleus which was generated
after the cascade. One of the most direct methods of veri-
fyina this'model is by the measurement of the ranges of the
recoil nuclei. The authors measured the effective thickness
t of the specimen (which is proportional to the range) for
Card 1/3 the recoil nuclei Na2'~ which were genexated by photonuclear

24 SOV/56-35-2-51/60
The Ranges of the Recoil Nuclei Na and the Mechanism of Some Photonuclear
Reactions
reactions on Al, Sig P, and S. t is defined by t - N/a
0
where N drotes the number of the recoil nuclei flyinR away
from 1 om of the specimen surface (the thickness of which
is greater than the maximum range of the recoil nuclei) a 0
denotes the total number of the recoil nucl6i genera e
in the unit mass of the specimen, In order to determine N,
the specimens *bre interlaid with triacetate fj ms (thick-
ness 20 p) which collected the recoil nuclei Na2i. The piles
consisting of specimeno and films were placed in a 260 MeV
bremostrahlung beam of the synchrotron of the FIM (-Fizi.-
cheskiy institut AkaderAi nauk) (Physics Insti~ute)AS USSR)
and were irradiated for 10 - '15 hours- 10 - 15 hours after
the end of the irradiation only the characteristic activity
of Na24 was observed in the films and specimens. The ratio
11/a was calculated from the measured activities. The re.-
sults of these calculations are demonetrated in a table
and in a diagram, and are also compared with the results
~f the calculations according to the model of the compound
nucleus and according to the "quasideuteron" model. A model
that assumes the formation of a compound nucleus with sub-
Card 2/3 seque-nt evaporation of nucleons does not explain the above-

24 SOV/56-35-2-51/6o
The Ranges of the Recoil Nuclei.Na and the Mechanism of Some Photonuelear
Reactions
mentioned reactions. Only further experiments and more preciso
calculations can solve the problem as to whether the above--
mentioned discrepancies can be eliminated by an appropriate
modification of the "quasideuteron" model, or it is necessary
to introduce an essentially now mechanism of the interaction.
There are 2 figures, I table, and 4 references, 0 of which
is Soviet.
ASSOCIATION: Fizicheskiy institut im. P. N. Lebedeva Akademii nauk SSSR
(Physics Institute imeni P. N. Lebedev.,AS USSR)
SUBMITTED: May 21, 1958
Card 3/3

24.670b, 16.8loo .70"976
SOV/'56-37-6-16/55
AUTHORS: Belousov, A. S., Rusakov, S. V, Tam, E. I., and
Cherenkov, P. A.
TITLE: Search for Particles with Masses Between 6 and 25
Electron Masses
PERIODICAL: Zhurnal eksperimentallnoy i teoreticheskoy.fizilci,
1959, Vol 37, Nr 6, pp 1613-16A (USSR)
ABSTRACT; Experiments were carried out for the purpose
of elucidating the question whether"/,-quanta
generate particles with mass lying between 6 and 25
electron masses according to the production cross
sections as predicted by the electromagnetic
theory of pair production. For this investigation
fast coincidence circuits were used to measure
the time of flight of particles with a given
momentum between two scintillation counters. The
following diagram illustrates the geometry of the
Card 3 /5 setup:

Search for Particles with Masses Between 76976
6 and 25 Electron Maases sov/56-37-6-16/~5
Fig. 1. Geometry of the ex-
periment(setup: (1) synchrotron
target; 2) monitor chamber;
(3) lead col'Umator; (4)
direction of the bremsstrahlung
beam; (5 lead target; (6)
magnet; 17 scintillation
counter; (~) vacuum tub6: (9)
focusing lenses; (10) scintil-
lation counter.

Search for particles with Masses Between *76976
6 and 25 Electron Masses sov/56-37-6-16/55
The irradiation of the lead target by brtm3strahlung
produced particles pairs. The separation of
particles with a proper,-momentum was achieved by
means of the magnetic field. The counters in the
path of the particles at a distance S made it
possible to measure the period separating the
particles on their passage through the first and
the second ebunter. The difference in the passage
time of the particle with mass M and an electron
having identical momentum was obtained from the
relation -1~0 = S(1-[3m)/c~GM. particles with
mass M can be identified only when N
background
/Ne eN.IN-, where, N,, - counting rate at the
'*' "I '~
maximum in the curve of captured collisions for
particles with mass M.~-Experiments were made with
Pb target 0.5 thick for M = 8 and 12 meand 0.25 mm
Card 3A for M = 16 and 20 m The theoretical coincidence

Search for Particles with Masses Between 76976
6 and 25 Electron Masses sov/56--17-6-16/55
counting rate was compared with the experimental
rate obtained for parameters of the experimental
setup corresponding to the registration of
particles with the expected mass. In each set of
experiments the ratio of the electron counting rate
to the background was also measured. The result",s
obtained show that the cross sections for the
production of particles by '~/-quanta with unit
charge, spin 1/2 and masses lying between 6 and
25 m do not correspond to those predicted by the
electromagnetic theory. The work was performed
under the guidance of V. I. Veksler; P. N.
Shareyko, A. A. Rudenko, A. D. Makov made contributions
in the course of this work. There is a schematic
'diagram of the setup; 2 tables; 2 graphs; and 14
references, 9 Soviet, 3 U.K., I French, 1 U.S. The
U.S. and U.K. references are; W. Davies, D. Shaw.
Proc. Phys. Soc. A64, loo6, 1951; U. i6nossy, C. B.
A. Melusner. Nature, 63, 181, 19119; E. 11. Cowan.
Card 4A Science, 108, 534, 1948; D. Broadbenf, U. iainoauy.

I Search for Particles with Masses Between
6 and 25 Electron Masses
2
Proc. Roy. Soc. 192, 364, 1948.
SUBMITTED: July 29, 1959
76976
sov/56-37-6-i6/5a
Cai-d 5/5

21 (7), 24 (5)
ATJTHORt Cherenkov, P. Ao SOV/53-68-3-2/11
TITLE: Radiation of ?articles With a Velocity Greater Than That of
Light and Soso kpplications of This Radiation in Experimental
Physics (Ulucheniye ohastits sverkhsvetovoy skorosti i nakotomo
primeneniya etogo izlucbeniya v eksperimentallnoy fizike)
PERIODICALk Uspokhi.fizichoskikh nauk, 1959, Vol 68, Nr 3t PP 3T7-386 (USSR)
ABSTRACT:. This in the reproduction of a lecture delivered by the author on
the occasion of his being awarded the Nobel Prize at Stockholm
on December 11', 1958. -.AlTeady 1934 the author and S. I.
Tavilor had .published-two reports (Refs 1, ?), in which it was
shown that the rwrays of radium, besides luminescence of the
solutions, also cause a weak visible glow of the solvent.
Further investigations showed that this is not caused immediatel,,r
by t~e r-r&yj;, but by fast electrons formed by them in Compton
acattering.In the folliming, the author discusses the method of
investigation developed at the Fizicheskiy institut Akademii
nank SSSR (Physics-Institute of the Academy of Sciences,USSR)
(Y9. M. Brumberg, S. 1. Vavilov),as well as the theory by Tamm
and Fiank, which is based on the asv=ption that the velocity
Card 1/3 of the' electron moving in the medium is greater than that of

Radiation.of Particles Vith a Veloeity Greater Than SOY/53-68-3-2/11
That of Light and Some Applications of' This Radiation in E&perimental Physics
light c/n in this medium. FroM all points through which the
electron passes, electromagnetic excitation will propagate as
delayed waves, which will be extinguished by interference in all.
directions with the exception of that for which coo a . I/Pn.
This important connection between 0, 0 and n bould be
experimentally proved,(rigare 2 shows the experimental
arrangement, figure 3 --a hotograph of the intensity
distribution of radiationX Whereas ordinary luminescence has
no asymmetry and appears on the photograph as a uniformp bright,
closed ring, the radiationof Particles moving with a velocity
greater than that of light appears as part of this circle with
two-brightness maxima;-the angle between them is 2 O.'The figure
shows this for j=re H20 and pure ethyl cinnamate. For each of
the.liquide 2,ieurves were obtained: the u, er one for r-rays of
ThC".,-_th* lower one for such of Ra (ag 4 - It is easy to det?'r-
inel from the curves. 0 is found to increase according to.the
theory with increasing refraction index n. In the following, ~ha
spectral investigation,of this radiation is discussed (experimen-
Card 2/3 tal scheme figure 5, photograph of the*fross section of the

Radiation of Particles With a Velocity Greater Than SOV/53-68-3-2/11
That o? Light and Some Applications of This Radiation in EXperimental Fbysias
radiation cons figure 6; part of this cone is shown by a
colored photograph (Fig V; the photographs were taken by A. P.
Zralov of the Ob"yedinennyy institut yadernykh issledovaniy
(joint Institute of Nuclear Research)). The occurrence of
Cherenkov radiation causes an energy loss of the electron, wlAch
is equal to V )&o ; 1 denotes the Dath
C2 JW>1 2n2
length of the electron. In conclusion, there follow some
discussions of the phenomena observed. Among other thingsp it
is pointed out that in spite of the low intensity of the
radiation at 1, 200-3U0 photons/am are emitted by a particle
moving through a medium with n !-'- 1.5. There are 7 figures, I
table, and 16 references, 6 of which are Soviet.
Card 3/3

PHASE I BOOK EXPLOITATION SOV/4393
Cherenkov, Pavel Alekseyevich, Professor, Igor' Yevgenlyevich
Tam, Academician,and Illya Mikhaylovich Frank,, Correspond-
ing Member, Academy of Sciences USSR
Nobelevskiye lektall (Nobel Prize Papers) Moscow, Pizmatgiz,
19.60. 73 P. 7,000 CoPies printed.
Ed.:,T. V.-Mikhalkevich; Tech. Ed.: Ye..A. Yermakova.
PURPOSE: This pamphlet in Intended for physicists and re-
searchers, engaged in the application.of the Cherenkov
radiation principle in experimental p4-sica.
Cov;~G_Z_: The pamphlet contains lectures by Professor P. A.
Cherenkov,, Academician 1. Ye. Tamm, and Corresponding
Member of the USSR Academy of Sciences 1. M. Frank given
In Stockholm on December 11, 1958 when receiving the Nobel
Prize in physics. The supplementary aloticle relates the
history of the discovery of the Cherenkov radiation and
presents biographical data on the three Nobel Prize re-
Card 1/3

Nobel Prize Papers SOV/4393
ciplents. PhDtQ8r&Ph9 Of the Prize winners are included In
the booklet. The complete text of the speeches and of the
&Aicle were previously published In UspekhI fizicheakikh
nauk, v. 67, no. 1, and v. 68, no. 3. The articles are
accompanied by bibliographies listing Soviet and other tech-
nical literature.
TABIA OF CONTENTS:
Editor's Preface 3
Cherenkov P. A. Radiation of Particles Having Velocity
-Gr-eater TAan T of Light and Some Applications of This Radi-
ation in Experimental Physics 5
Tamm, I. Ye. General Properties of Radiation Emitted by Systems
Moving at Greater Velocities Than That of Light and Some Appli-
cations to the Physics of Plasma 20
Card 2/3