SCIENTIFIC ABSTRACT FEOFANOVA, YU.M. - FEOFILOV P.P.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000412910009-5
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 23, 2000
• Sequence Number: 9
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

FECFANOVA, Tu. M.. Uand.Geolog-~Ineralog Sci
Diazertatio'n: "'Morpholo,gy-and Stratigraphy of-the-Cheilostomata,
Neogene System of the Ponto-CasDian Basin." Moscow Order of the
Lalor Red Banner Petroleum Inst iment Academician 1. M. Gubldn
10 Jun 47.'
SOi Veghernyva Ijqqkvp Jun 1947 (Proj #17836)

IMOYANOVA, Yu. M.
Study of upper Tertiary bryozos, of Moldavia aud Crimea. Biul.KOIP. Otd.gsol,
28 no-3i42-63 #53. (MLRA 6:11)''
(Koldavia--Pblysoa, Fossil) (Pblysoa. Fossil--Moldavia)
(Grimea--Polysoa, Fossil) (Polyzoa, 7ossil--Crimea)

FBOFANOVA, Yuslia,,
New Paleogene Bx7ozoa of Fergana. Paleont, zhur, no,lt60-72
165. (MIRA 1814)
1. Mookovskiy institut neftekhimicheakoy i gazovoy promyshlennosti
imeni Gubkina,

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UAblHty. As sq. p&Aq of thk mbt. may be und for The
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rEO;*?ILOV) G.L*
Some notes on the nomenclature of bronchi and brcnchopulmoruiry
segments. Arkh. anat., gist. i embr. 48 no-5: 102-104 My 165.
(IMMA 19: 1)
1. Legochnoye otdeleniye (ispolnyayushchiy obyazannosti zav. -
kand. med. nauk G.L. Feofilov)'Instituta eksperimentallnoy
biologii i meditsiny Sibirskogo otdeleniya AN SSSR, Novosibirsk.
Submitted January 31, 1963.

1193346 Ewr (I)AN (m)/f/EW (t)/EVIP (b)/EWA (c DPW JD/JG
ACC PIR: AP6001654 SOURCE CODE: UR/0051,165/019/006/0973/0975
tkL~ LH
Feofllov! P.'0
1 AUTH DR: Zonn, Z. N. loffe V.
ORG: none
TITLE: Luminescence of chromium and Manganese Ions In-lanthanum aluminate crystals
SOURCE: Optika I spektroakoplya, v.,19. no. 6, 1965, 973-975
TOPIC TAGS_, manganese, chromium, Ion, lanthanum compound, single crystal, lumin-'..
!escence, altuMnate
1~7
21 01
ABSTRACT: The, authors discuss certain results of the study,"f the spectra and lumin- ~i
Cr3+ [n4t (elec nic confi - att n 30), intro
escence dur&tI ILof Iseelectronic Ions -.and.N pA gur 0
7-duced Into the crystal lattice of LaA103. Both mono stalp'grown from a solution in a
I melt as well as ~owdcrcd riamples were considered* No difference In the spectroscopic
characteristics of the monocrystals and powders was noted. Crystal luminescenceq located
in the red-and near-Infrared portions of. the spectrum was excited ~by an SVDSh,-250 mer-
cury lamp through a light filter consisting of a CuSO4 solution, which had the effect of
i blocktng the longwave portion of the energizing light. At small chromium concentrations
Card 1/2 UDC: 535.373. 1
11933-~56
ACC Mt.
AP60011654
the lum[nes
7338 A cence spectrum consists priletic~Y of a .doublet wi
- Me the Cr3+ concentra tion- Is Increas th wavelengths of 7335 and
lulninescen
ce OPech*wn undergoes definite modified to 0* 5% and above , the form of
cations, the
concentrations Mounting to severai Percent, luminescenc which are described. . with
quenchel. The lumi e of Cr3
nescen
The luminescence Is InterP Ce Spectra at different chromium Per0e I. In 1-1&0 IS entirely
nta
has: 3 figures retdd as Zes are iQ~trated
a 3E 4A2 transition in the Mn*l too. orig. art.
SUB CODE- 20 3M
DATE: 2014ar65 RWP..t 003'/ OTH RIW,
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lee A TI11114~rabol the salinixed"Is have becusept. Thediffer- '00
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00 conshit of halite and betnihydrate (CaSOt-0.310) 1. Under see
the hard pen the bemihydrate disappears and gypsum 6 It
found. The white wellow hard Pan convains Primarily
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USSR/Soil Science - Physical and Chemical Properties of Soils. J-3
Abs Jour : Ref Zhur - Biol., 110 3, 1958, 10491
Author : Feofarova) I.I..
Inst :
Title : A Micromorphological Characterization of the Takyry
Orig Pub : Takyry Zap. Turkmenii i puti ikh s.-kh. osvoyeniya, Moskva,
Ak--d Nauk SSSR, 1956, 351-380
Abstract A study of the structure of slides taken from various hori-
zons of the takyry of the Kopet-Dagh mountaiu plain, using
a polarized microscope, has disclosed the cellular charac-
ter of takyr porosity, the presence of gelatine-like newly-
formed "secondary clay" in the lower part of the takyr
crust, and also the existence of /osolodeniye/ spots in
its upper part. Finely dispersed forms of carbonates were
shown to coat the valls of the closed pores; the presence
of some decarbonatized sT)ots was also discovered. The
gr.eat mobility of organic substances in the talvjry is noted.
Card 1/1

FEDFAROVA, 1. 1.
S
ulfatea in saline.soils. Trudy Pochv.inst. 52:89-103 '58.
(141R& 11:9)
(Alkali lands) (Sulfates)

FEOFARDVA, I.I.
Applying the microscopic method for determining carbonates ft
saline soils. Trudy pochv.inst. 53:75-88 '58. 0aim 11: 9)
(Alkali lands) Warbonates)

2~ONN. S.V.; FI!DFAROVA, I. I.
Bqw soil type under dark green conifer forests of eastern Tibet.
PDchvovedenie no.6111-20 je 16o. (KM 13: 11)
L Laboratoriya lesovedeniya Akademli nauk SSSR.
(Tibet-Forest aoile)
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so p (1y, S. 3, It.) j, 4WM(1940),- - Fltptl. data
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for fluorr"O' mmiu, fbmkmin It, and ttypailavin In
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FWFILOV, P. P.
Inst. for Theor. Geoph. Acad. of sci. USSR, Polucheno, (-1942-)
"Night Illumination and S-nectral Composition of Nipht Light in Middle Latitudes,"
Iz. Ak. Fauk 555R, Bar. Geograf. i Geofiz., Koo 1 - 6, 1942.

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Anil W1111=31, depolarimaWn, r - mrsin hip of excitni state:
c - solute concu.: A co&*L) is deduced thmireticallir in thu basis
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bond call Ile attrilinted its a wIlitrule ii~cilblor. Cijrw~,
tar buth spectra art- givirtl 1,-r Ille foll"itil;R IN vivo: acti.
Ifille Yrilow, 01EYN1111111se.

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it wilsollavill. rivalw]. luciparld". dum
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.1rel, jq4t
Imminescence
Light - Polarization
.^,*#4ture of Xlementary Xmittere and the Polarizati6n.
Photolumineacenoe," P. ~P. Feof ilov~ Lob Lumines-
Ce rice State Opt Inst pp
~*C.app Pend Acad Sai'URSS" Vol IV, No 5
av!3,Qv has shown. that the kind of multipolarity of
'ilimentary absorbing and emitting systems in the case
7'~t complicated 161noscent molecules can be eatab-
'Aiilhea by studying absorption an& emission as function
,6fthe direction of the exciting light vector, an&~by
50TW.
sics (Contd) Feb,1947
/Phy
il serration. He has computed polarization diagrams
Pr6r the four possible combinations of electric di-
~*61es and'quadr6poles and made it.clear that the
udy. of polarization diaj;rams permits defirdto Ae-
the kintbf multipbLetrity'of elementary,.'
.Ii1tt,I6rij'. Pebfflck'~xtefids 7avilov-19 considerations'
*,ft''t'he"cibe of a magnetic dipole. Submitted by S 1.
1946.
avilov, 19 Oct
r=4

N,
structure of the abstteptim bond ad triplataybusthane
4yn* ftofilov Dekliady Akad SM 3 S S R 57
uWd
44P*Wli47i::L--T5;-4J1h4fW of POIA;&tIO13 '~" Is * I
to Imlicate that In the dyes with a nearly sym, structure the
secondivy she, nuts. am detd. by the structures of the molt,
land are connected with the existence of an electranic shift
which is different front that dets. the princliml absorption
lund. xxxitation of luminescence in the region of the
long-wa" abooription band give* the limiting polarization
that 6 about 0.9 61 the value caled. forilufar Oscillators with
coincident direction of oscillation. for till the prtvkwWy
studied dyes. Studies with fuchsia. pamfuchslu, methyl
violet. crysW violet. ethyl vWd, alk. phenalphthalein. and
mabehite green showed that dyes wit 2 auxochromes dis-
pLay polarization that 6 don to the Ifinhing value and Is
;%sentially invariant in respect to frequency of exciting light;
hem the principal oscit4tor system must be coaliat with
the fins Joining the 2 auxothromes; them dyes do not show
secondary As. maxima. Dy" with 3 auxochromes display
a secondary abs. mix. and thetment of polarintfon changes
haMly with change of frequency of Incident light within the
halts of the absorption band. "Citation with light of fie-
Uency Col. ding to the long-wave edge of the band pol.
rization it the s3= citMtd 0abovAJ40-5%). but with shorter
Vea the polarh Is 1y and may become n
I)s. value r-7%). G. It. Kasolapolff",
1"'S

PA 53T91
rEOPILOV2 P. P.
"ago
Aug 1*7
...J~~rization of Motalmidnenceme and the
tjWMolecule, P. P. Foofilov, Luminescence Lab,
Atate Optical That, 4 pp
Pok Akad Wank SSSR, Nova Bar" Vol LVIJ) No 4
hseents in tabular form Polarization of luminescence
of,benzole derivatives, Important because of Increased
use of brgwlo dyes. Analysis of molecule struct"s
C;t- fluorescent dyes shows that majority of complex
19,aicules can be isolated and divided In several vays.
~iAbnltted. by Audmialm S. I. Varilay., 30 NU 1947-
5M91

11 to it If 0 AS U
Iasi
-JL-L-A-X-A-4 -" A, fig
PROCIII46
if
to ri
.0
0
00
04
ohm
0
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o
*IFA&tV*bKAt Mfir I%mt CLAWFKAVIC
AT 10 AS. to to to 0 a It a K a a
SRI* I A $1 At aAl
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AND ollopfavill mot A
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FEOFIIOVY -F. P.
U&WPhysics Apr 48
Light'- Measw!ements
Optics, Physiml
"One Possibility of an Equaticn of Depth of Modulation in the Kear Effect," N. A. Thlotoys,
P. Feofilov, State Opt Inst, 3 pp
"Dok Akad Nauk SSSR, Nova Ser" Vol LX, No 2
Describes fundamentals of method for measuring Kerr Effect. Presents matbod for
cilculating intensity of light passing through the analyzer. Submitted by Academician
S. I. Vavilov., 18 Feb 1948.
PA 62'197

MFILOVI P. PO
USSR/ Physicil
Glass
11 Jan 1948
"Lose of Luminescence IW Glass and Uranyl Salts$ N. A. Toletoy, P. P.
Feofilov, Luminescenco Lob, State Opt Inst. 4 pp
f1flok &ad Nauk sssR, Nov& Sorg Vol LIX, No 2
Presents some results of use of now method to study attenuation of
luminescence. Gist of method in development of curve ol' intensity
of luminescejum according to the exponential law in time on screen of cathode
oscillograph. 33V varYing the exponent of the converter, straight line
produced an the screen, indicating itentical nature of, the law of attenuation
of studied Itualnescence with the law of the converter. Submitted by
Academician S. I. Vavilov, 9 Nov 1947.
FA 43/43TILOI

. . . . . . . . . . . . .
-FEOFIWVP-P.- -PA--48/49T93-,

ABDRONNIKOV, K.S.; BALAKOV. V.V.; BUZHINSKIY, A.N.; BUAGO, A.N.; VIMTKAN,
L.A.; VISRUEVSKIT, A.A.; VOLOSOT, D.S.; GASSOVSKIY, I.M., professor;
GXRSHUN. A.A., professor-. YALYASHEVICH, M.A.; YZVSTROPIYZV, K.S.;
GURIVICH, M.M., professor; KOLYADbf, A.I.; KORYAKIN, B.H.; KURITS-
KIT, A.L.-. PAPITANTS. CA.; FROKOFIYXV, V.K., professor; PMS1 MK,
U.K.; RXZUNOV, M.A.; RITYNI, N.R.. SAVOSTOYABOYA, N.V., professor;
SBVCE31NKO, A.N.; SMOV, N.I.; STOZHAROV, A.I.; FAYJMN. G.P.,
profeusor; TSAREVSKIY, Ye.H., professor; CHIMTAYIV,
D.P.; YUDIK, Ya.F.; KATHATSKIYA, V.V., professor, VAVILOV, S.I.,
akaderilk, redaktor
LoPtlas in military science) Optika v voennom dale; abornik statei.
Pod rvid. s.r.Vayllova t N.V.Sayontlianovol. Izd. 3-a.,zanovo perer,
i dop. Moskva. Vol.2. 1948. 387 p. .(KIRA 9:9)
1. Alaidemiya nauk SSSR. 2. Sostavitelt - sotrudniki Gosudarstven-
nogo 'Optichaskogo Instituts (for all except Vavilov and Kavrayskiy)
3. Voyanno-morskaya akadamiya (foir Kavrayakiy)
(optics)

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MA -

USSR/Physics May 49
Relaxation Phenomenon
OscillographB
"New Method of Studying Processes," N. A. Tolstoy, P. P. Feofilov, State Optical
Inst, 10 pp
nZhur Eksper i Teoret FizN Vol XD1, No 5
Describes new oscillographic method-of studying relaxation of physical processes,
based on the use of nonlpear gjaphing. Method is applicable to processes occuring
in the time interval 10'- - 10 :see. In the case of relaxation taking place accord-
ing to the exponential law (exp- t/tau), value of tau may be determined after several
seconds. Generalization of methodp called "the method of partial time," is applicable
to processes in which relaxation occurs according to any law. Submitted 6 Nov 48.
PA 46/49T99

j A .I .
USSR/Physics - Dielectric Constants Dec 49
Polarization, Relaxation
"Application of the New Method for Studying Relaxation Processes to a Study of
Relaxation Polarization in Dielectiics,lt G. 1. Skanavi, N. A. Tolstoy, P. P. Feofilov,
K. I. Lebedev, Phys Inst imeni Lebedev, Acad Sci USSR, 9 pp
"Zhur Eksper i Teoret Fiz" Vol XIX, No 12
To study relaxation polarization.in dielectrics of titanium dioxide with smRll
additions of oxides of metals belonging to the sec.~nd group of the periodic table
(this group gives very high values of e in the region of low frequencies), one employs
the oscillographic method of studying, by electrical square-wave impulses through
ohmic resistancesp the charge and discharge of the condensers cortaining the dielectric
under study. Here a si.Vle exponential development of the process in time is employed,
as wellas more-complicated ones. Showg charge and discharge processes of the condensej~
with the dielectric under study have a complex character differing from the exponential,,
Equivalent circuit schemes are found for the dielectrics under study. Parameters of
these schemes are determined experimentally. Calculation of these equivalent schemes
permits one to obtain the function of current drop with time in each studied dielectric
with calculated constants and thu� to evaluate values of initial currents. Submitted
23 Jun 49
IVL PA 152T87

USSRIPh~s J46 s - - Jan 49
Phosphors
Luminescence
"A Study of the Initial Stages of Luminescence and Extinguishing in Zinc-Sulfide
Phosphors With the Aid of an Oscillographic Phosphoroscope," V. A. Arkhangellskaya, A. M.
Bonch-Bruyevich, N. A. Tolstoy, p. P. Feofilov, 4 PP
"Dok Ak Hauk SSSR" Vol LXIV, No. 2
Partial results obtained during study of crystallic phosphors by the "partial time"
method. Method allows studies to be conducted in the time interval 10-5-10-1 seconds,
suitable for investigating the little-studied initial stages of extinguishing, and the
completely unstudied stages of crystallic phosphors bursting into luminescence. Submitted
5 Nov 48.
PA 25/49T99

PEOMbIj. P. F.
USSR/Physics Jun 49
Optics
Colloids
"Certain Electro-Cptical Phenomena in Colloids," N. A. Tolstoy, P. P. Feofilov,
State Opt Inst, 4 pp
"Dok A Nauk SSSR" Vol LXVII NO 4
Studied electricaldouble refraction and electrical dichromism of colloids using
(1) optical arrangement with a Kerr call (~) voltage sources, changing according
to a special law, (3) obdurator, and M photoelements applifier, and cathode
oscilloscope. Teated water solutions of bentonitet benzopurpurin, graphite,
anisaldazin, n-azoxyanisole, and other liquid crystals. Submitted by S. I. Vavilov,
25 Mar 49.
FA 46/49T89

P 7D)5
2.
USSR/PhySics
Photocimductivity
Bissmuth Compounds nay 49
"Initial Staf;e., of Relaxation in the Photoconductivity of Bi2S31" D.B. (lurevich)
N. A. Tolstoy, P. F. Feofilov, 1,, pp
iiDok Ak Na-ak -ISSR" Vol LX7I, I-To 3. Submiluted by Acad S. I. Valrilov, 25 :.Iar 119.

SMO kulgridec of tho IWO-UP of ZON.Ma Pbog-
_Ej. I ~Iv. 11,414Y
4*011,
S~V-S.M- 69. W Imillu). - Ill rUit4li.n. lq ik lit-
VA934-r LAMP. tile t4 "r (40 l"Ild (A tile 1,111WAIll pluvildlipt
shows, in O"togrAplik PhU5pbM=)y' UIACIIULI groWth
of Intro-Ity, Imt the yrllow 061n) Wit first ilarrAl up to a
peak. team which it rapidly 1.1110 to The statioamy Intensity.
In SaMPICS 11VA104 Ib Min. Sit 9W*. U11der I& NAct flux,
with I X IU'11 - 1 )1. 141 -t g. Ntu/g., the peuk was most
iwonmb"d lit I X !!I)-' t4s-, and W&* still oboavuble,
with 5 X 10' mild 1 X 10 - 4 g.1s. The efftet 13 thus
moet marked at activniaransquAl. at which thecompetillon
between the blue arid the YCHOW 01116skin is Invat pro.
nounced. The heightof (he peuk (rclutive to the staticAs.
airy int"Aty) inemwil with the intvatkily of excitation.
mad with the length is of the (equAl) pcfi-All of illu"AIMAilun
and darkrimi (betwestu 0,01 and 0.4 ftv.), On cooling to
liquid-ak temp., the effect .di4appears in lampkil In
whkb It was PCCWV4 at room 11CF11P., WhCfe-AS SOMPIC,
with too hig,2 or coo low Mis contents show no new PArtic.
ldafitkv. On heatiAls to above tooin trinp.. (tie relative
height of the Peak fil.t increaws. thrn I.Alls, aloni; %ill% a
ifelArral increase of thC StAtiOdUty WSISWIMS. With U Ali%-
tinct M, . between tile prak and the level
in. n0#
branch. Ft= Increase of thr tcntl-. britw the curvA:
back to normal. without peak or min. Thc prak plic.
notaction is thw cocAned to &L range choc to rocAnt temp.
By VXpOI&C12tiAI Spreading. ill;: nuix. of the lWak I-$ fuund
to bw attaltwil within a few millisve. from the beginning
I'l-1.11"Air
IIIIIIA llfrrAdolld 11411.1mily J ~%VIJAIWO'
The peak can be rna.de viAuAlly alm-rvable wilh the 414 at
a tatating disk coated with thr plimphoron Its prriphm;
the brightne" all t1w excited huninewent t. it viewed
through a red filter. fitsit inctetisrs, then x1ecreaft, with
Increasing speed of rotation, whereas the contrary appears
through a blue filter. The demy of the yellow emission
also presetitspecularitles. It is very fast In the begituthig.
of the dark period. then is stowed down almost to a stausi-
still. then proceeds at the norinal rate. *rhi% %dect Is
most pronautsced with A X 10 -1 g. Nill/g.. and I% 413scat
altogether above 6 X 11) - I lit below I X to I S.]S. Again
the blue eulb3iLni dcvjyt normally throughout. The
pbenomenott Of the OAM-Ull C.411 be ititerprAttAl its agrec.
ment with the Of Levshill (C.A. 42,
331543t). by assuining that at the rud of a dark perioti of
suffpcieAlt kugtb h, the level, of %III Iuvr bccoum rtapty.-
as S co"MquetATT of which elvctFila transitions to tbrw
ICMS aft Uninhibited ill the Ist tAlft of excitation. but
become statioriary as SAAM, as tile lcvcI3 bare bc-nue
"plugged" with clectimills. This tacchAnism amvitats,
satisfactorily for sit the effects observed, except for the
disappearwice t4 the dare-up at too low %to concw..
band for Adsc min. observed at ntotictitely With tent
N. TM

Relaxation :oftho rmiotoconductivity in semicondlactors. 2,-L Gurovich,
N.-'A, TeLstoi,~ ~*IK. !~, ]LeoLilov. Zhur. Espil. Teoret. F'Lz. 20, 769-32 (1950).--
The kine-tic---, of the Dhotocond. A a- were investi.-at-ad by oscillography, in illumination
Ath rec-,,ang-ular light im-oulses (mostly of a period_~O.O/+ sec.), with rectangular
voltage imp"Uses of a frequency very conoiderably greater than that of the light
im,,)ulses, %-id. with exponential sweep of the oscillograph screen. The exptl.'
relaxation cta-ves are represonted in the coordinates e =Acr/(diSc7dt) =: dll',-/d(hi4o,~
vs. time t; the magnitude 0 signifies an llinstantai-,cous relaxation time," i.e. the
rela-catioh time -r of the i-_xijonential e-t/r which ~ap proximate s the ex.ptl. curve
at any point'corresponding to the moment t. In other words, 0 expresses at any
given moment the 'IsD. S'lowness" of the relaxation i.e. the reci,)
j rocal of the rate
of fall of a rela,'Ave to -the distance from equil. For simple exponential processes,
.0 coincides with the relaxation time -r, i.e. exoonential processes are characteri-
zed by a const. P. The rate law of the relaxation can be deduced from the shape
of the.~(t) plots. (1) For Bi-~S3 (thin layer on glass), E) is a linear function
of t. at any, temp. between 189 and 3260Y.., i.e., e = A X Bt, or, with A = l/aOL ,
B = 11x, and af-ter integration, 4 cf- =4 mol(l- / at)a~, wheredi7a = initial photocond.
This hyperbolic law of th~ decrease of A 0' is analogous to the Becquerel law in
Between 189 and 3260K.
nhosnhorescei3ce. , x varies from 0.039 to 0.23, followina
~r ~-- ~X,a I'V4 with u 6.2 x 1o-3 e-.v.. and aro (dimensionless) = 1.23 x 1o-3. The
parameter a is roughly inde-pendent of the temm. and is = 1200 s-c.-l at max. il-
lur-ination E.- The nlot of the station 7 lnkoavs. 1n E is linear. At const.
a, 70.
temp., a is , pprox. pro;)ortional to El P ;.dth P = 3-4, and the variation of 4 0'
with E obeys approx. the same law. This gives the 5iin., )le relation a - dCF-04-PAC'.
Tha growth ofAer during ii-jumingtion-follous a complex nonexponential law; its
QPC:

4'emps. the growth of A*^-X is exponential. The exponent x in the decay law in-
creases lAth tanip., partiCURLr1y rapidly between -150 arid - 2000; a a0 7- k 71/2
'3.
"'th 1(4 fa ling with rising tomp. In the growth law 4 o- =& a-0
1/r N
.+-- , with k4 falling with rising temp. 1,-1ith further rising te;-p., the
growth curve deviates increasingly frora the exponential. The values of a and 1/r
are of the sane~order of magnitude. Above 2000C., both the g:7owth and the decay
are exponential, with -r indei~endez# of E but varying with the tem. according. to
Y A-r withu = 0.45 e.v. (7) Photoconductors can be divided into 2
categories; t I) "exponential" photoconductors, characterized by a stationary,~100
a dark cond. roughly 10-100 times the photocond., exponential growth and ey-ponential
decay of -a or with the same -r in both instances, and independent of E; the temp
variatior~qf 1/4r is analogous to tht_- temp. variation of the dark cond., and of the
form e-u/ " in- both instances; exam.)les 'of this category are ('1u20, and CdS at, higher,
tenps. (II) "Hyperbolic" photoconductors, charact-~rized by A a 6 -1 f 711 , . a rela-
tivAy low dare 2ond., a decay folloiAng4p,= a Lr a / (14 al)il, with a indenendent
of E, and zi,r, the growth can be exponential, in wldch case 1/T V1.
Examples are Bi2S3, Tl,.;S, Se, InSe., and OdS at low temps. Possible deviatiorls of
certain t)roperties (except the hyperbolic decay) frop this 3L,.ole scherms are
viewed as complications only. Then
ITEM M-0 _W M, q191WL JSR

OWN"
Now m*tkA of kvftf4ptim ol reloutim procos"s and
ift spok4tios to tM owdy of @=e ph"M om"s".
Aloak 41.
.4. A. Tobtal andi cofilov., Utpekli Fix.
44-107(19FA)).-Rc pa 61 the authms' own
work on fe"iffnear owilkw4phy of the 11"Ay of phin-
vrqrrmcr phnforond, etc, 'M mIrfevirri. N. Tlu i
-.L7

FEOFn.OV, P. P.
USSR/Physics - LuTni iescence 1 Yar 50
Conductivity, Photo-
"Luminescenco and Photoconductivity Of Cadmium Sulfide," D. V. Gurevich, N. A.
Tolstoy, P. 11. Feof.Llov
"Dok Ak Nauk SSSR" Vol LXXI, No 1p pp 29-32
Investigated kinetics of luminescence and photoconductivity, carried out by
method of 11taumeter" (tau- life span or duration) on GdS monocrystals. Mathe-
matically discusses phosphorescence relaxation and so-called "nonlinear" photo-
conductivity. Taumater was described in ZhETF 19, 421, 1949, and "Iz Ak Nauk
SSSR, Ser Fiz,ft 13t 211, 1949t by Toletoy et al, Submitted 3 Jan 50 by Acad
S. I. Vavilov.
PA 165T75

FEOFILOV, P. P.
A. N. Teranin,, acad..,, and P. P, Feofilove The greatest Soviet scientist-optician.
(ref ers to 3. 1. Vavilov) -P.=
SO: Vestaik, Messenger of the Acad. of Sci., USSR. 21., 3, (1951).

-- e--4-
.13-137
Tlw Thkof All-Vake Owl &W
dw APPMesdow of Lamdumal
(I'spekAs fir, Nalik. Stiv. MI. VOI. 45.
4!,l 4,17) HvIx-rc int -f c-,"fe"mce lli-hl in M-111. )III"!
II .,,1, 111.11, stittlifusn" i,f 4A lkilierti are go% en

MmAliyBics BlemioDnductors -Jan/Feb 52
.~"Kinetics of Phat oconductivity and Kinetics of
Phosphorescence," N. A. Tolstoy, P.-P. Feofilov
"Iz Ak Nauk SSSR, Ser Fiz" Vol XVI, No 1, pp 59-69
Separates relaxation of photocond into 2 basic
:types: hyperbolic and exponential. Considers non-
linear photoresistance with relatively low dark-
current cond, characterized by bimollrecombination
mechanism, as belonging to the hyperbolic type;
while linear photoresistance with high dark-current
~-cond belo as-to,the.exponential type.
n
21ftp

SWY':
2. SSSIt
40 Vavilov, Sergai Ivanovich, 1891-1951
7. New developments In the theory of light ("Hicrostructure of light.")
S. I. Vavllclv. Reviewed by P. P. Peofilov.
Usp. fin - nwk 46 go. 1, 1952
9. Monthly List of Russian Accessions.- Library of Congress, February -1953. Unclassified.

6
USSR/Physics optics) Book Review Sep 52
"New Paths in the DeveloAnt of Theory of Light
(Revie- of S. I. Vavilov'a book,Omicrostructure of
gh*, P. PiYeofilov
..:,Uspekhi'Fiz Nauk":vol 48, No 1! Pp 3-24
:,Y-raises Vavilov's vork, describing visual observa-
of quantum auctuAtions or light; principles
superposition and "nonlinearity" in optics, micro-
.optical analysis of interference, Vavilov-Cherenkov
dtffect, microoptics of absorbing media, inductive
.,resonance) and migration of energy. Expects book to
I)e a perfect manual for future generations.
236776

_-____235T93
IiBSR/Physics Lumineacence Extinction 21 Jul 52
"Problem of Extinction of Luminescence of Rubin
.,'~)U,203'Cr)," N,..A. Tolstoy, P. P. Feofilov
-"Dok Ak Nauk SSSR" Vol.85, No 3, PP 551-554
Tresents certain data on. concn, temp, ml spectml depen-
dences of curves of extinction (and lighting)
of luminescence of synthetic ruby, from which it
Tollows that.the mechani:sm governing luminescence
An rubies is rather complex. Submitted by Acad
':A. V. Terenin 26 May 52-

mpnov, P. P.
PA 24"
2 1Dee 52
"Absorption.and Luminiscence Spectra of Triphenylme-
tbane Dyes," P. P. Peofilov and 1. G. Fayermn
'TAN SSSR" Vol 87, No 6, PP 931-934
.Compare absorption and emission spectra of triphenyl-
v.-thane dyes in order to verify that luminescence
spectra should be narrower than absorption band. Re-
siLLts are tabulated. Besides fluorescence, the dyes
enit for a few seconds a greenish afterglow in a
wive-length shorter than the exciting light. Pre-
sented by A. W. Terenin. Received 21 Oct 52.
240T97

-- I =V2 rMl llgalwq 4'2 -
--- -my'a - ---
FEOPIWVI P. . P. ---- - -- - - - --- - ---- - -- PA-254T61- -- -- -- ---

7
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intensity, .1 is a mnlt
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