SCIENTIFIC ABSTRACT SOUDEK, - SOUKUP, B.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001652620004-5
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 23, 2000
• Sequence Number: 4
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

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Abstract : See Abstract 6771.
Card : 1/1

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CZ'-WClfo,ST-rjlhlzL'L/~)P'4,ics - Luninescence K-6

CZECHOSLOVAM/OptiCS Luminescence
Abs Jour Ref Zhur - Fi zika No 4y 1959, No 6771
Author Soudek Ivan
-TH's-titute for Vacuum Electronic -Prague Czechoslova~
Inst searcF sl~
kia
Title Dependence of Afterglow of Luminescence oA Qe Miickness of
the Specimen
Orig Pub Chekhosl. fiz. zh., 1958, 8, 110 3, 332-335-
Abstract An increase was obse3r;,ed in the duration:of the afterglow; of
the phosphors (ZN:Cd) S-Ag and (Zn:Cd)S-Cu,', at. increased:
specimen thickness. The dependence of the afterglow,on the
thickness of the specimen has a somewhat'differ,ent character
than the dependence on the intensity of excitation. It is
assumed that the observed phenomenon is connected with the
transition of electrons bet4een-the indi~idual,crystalline
grains.,-- YaoYa. Kirs,
Card 1/1
99:
L-A

CZECHOSLOVAKIA/Optics Luminescence K-6
Abs Jour Ref Zhur Fizika
No 4, 1-959, No 6773
Author :_Seudek Ivan
Inst Rese~rohIn!;titute for Vacuum Electronics.,. Pra& .ey Czech6slo-
vakis
Title The Dependence of the Spectral Cormos.itioia'ofthe Lumines-i
cence of Zinc-Cadmium Sulfides on the Excitatio'n.-Iritensity,:
Orig Pub Chekhogl- fiz--zh-, 1958, 8, No 31 336-34o
Abstract A shift in the radiation bands of the phosphors ZUS-Ag) Z#S-Ct~'
and (Zn:Cu)S-Ag has been observed towardkthe!sih6rter waves
upon increased intensity of-the excitingflight.: To explain
the observed phenomena it is assumed that'thell4vels of t~e
activator fill a definite band of values..'of enekgy.,~in which
the excited Istate can shift from the deeper states towards
,the higher migrations of holes. Repeated-excitiition;of short-
wave centers occurs at. higher excitation:: intensity more ra-
pidly than the excitation of long-wave 6enters ,caused by
the motion of the holes. Ya.Ya. Kirs,~~
Card 1/1

-59~-3-4/2~79
AUTHOR: Soudek, Ivan CZECH/37
. . .. . .. ..................... ........ .. ..........
f
-Depende e,of Spectral C6mp6s1t1dn:!.o
E: Temperature ne
TITL
76S.4sm- Ca~ :*Ulphi e
Lusinencencs-
ovenn A.pro- 95~9, Nr.. 3, pp 246-24
10 'A
-PffJtIODICAL:
baMm of .
ABSTRACT: The width of the broaA-,. ram&l-y gaus. iazi
ould '. be proport . ..to'theiabsolute'
sulphide phosphors 8h ional,
temperature or its square root. Results'! by .4ch6n- (Ref,,* AL):'
and KlIck (Ref 2) are, however, not in good, eement~ with
on, a osphorL
this assumption. In the present. 'invest1gati- :ph
c ontaining 700P6D ZnS, 30% CdS: 0. O1 ~ Ag . was ed without
binder on an alteninium substrate, cooledil'to liquid ai
r
temperature and then warm-ad up in steps.,of. roughly 20 C..
At each temperature the emi.ssion spectrum:wa s measured.
Excitation was mainly by radiation of 305,mp!w avelength.
Figure 1 shows the emission spectrum.at,110 andi220 "K.
The maximum has shifted and decreased with tem
perature.but
the width of the curve has remained nearly unchanged.
Figure 2 shows the logarlthjn~of the emIsslo'n''itn~ten'sity
against temperature for several a elected :wavelengths."
:a
Cardl/3 In agreement with other measurements (p64,r9bL,-nd, other's
Refs 3,4), these measurements.shov a decrease,in the m&Xi

L
CZZCH/37-59-3-~4/29
Temperature Dependence of Spectral Composition of Lill-kno'scence of
Zinc Cadmium Sulphide
intensity with increasing t emp eratur e and a ihif t towards :i
an'~ be
shorter wavelengths. This behaviour c understood an'
the assumption that the emission.centre consists of a
e a hif 0
sulphur ion whose ener y lavvis ar ited by! th
of activator Lons in its-vicinity.(H.A.:Klasen's 8):.
By thermal expansion of the latt:Lce,the distance betwoemL.!~'- J
increases; thereby the"
the sulphur ion and the activators
interaction decreases Iand the relevant, energy level approacher. I
its original-position in thelvalence band. ~ifius,, the,
emission shifts towards. shorter wavelengths.'.. On the Q'th*r
hand, the migration of holes increases withte~mperature,
(the author -,Ref 9) and tends to shift the eiiission towaros
longer wavelengths. The balance betwoon!~thesej two. Influence&,,-
may vary in dJff erent mat or-lals I(C.C. tiin.-.Ref 10 and
J. Ludwig, R. Seivert - Ref 11). . Trapz~ may also, inflid Ione is
this process (Refs 12,- 13). A further in-V'esii` t
ga Ion rewdinu. ~,j
the possibilit flueAce of Arac'4 ia of: co,
y of the in pper is iik ~A
progress.
C%rd2/3
-A

A.,
':~DUDIZ*F',~,, 1-[
biot
r i 4zix
i A~
Investigittloo-of, tho
luminescing ~ zinc-caddd ldowj~ j-, Soudek (ke.,
MR:Ew- Tm- I Wer. t
search Inst. Volcuum
obmvft that Cu
dn. leads to Increased polarinhility atizi a thanr- In the
occura even at
ec. conxt.: 1 the - effixt
real part of the dip
-1) which hive no Infue6ce on luzz"es::
Cu concrts.(about 10
cence. Ni suppress" the effect of CS.L. : TU spectral almure.
ments Indicate low max. In the Inframl. - T]w excitation
rmax. In the abs tion tPA also depend an the no put of the
Ott (Tp 1.,
it
dielec. const.
if
7~
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t
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the main emission, bands of phos~lzars ot. the ZnS typi.
'Aliat the fonn of the hands xmdti-go~s only, small thangei, jj,ii
-
!,
which am difficultA6 connect Mth any, thcor~. .To cxama.
_
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"P
the effect. thoroughl 6W;
trVcS wv4e measiii~d,
in
C%
yp SPOC
-
.:,
Steps of 20-30% of phwphorsi coolid with liquid airphd sub-
-
I thc:,
t1
A
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t
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inE-The
t
d
t
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b
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e
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o
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rea
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po
y
~
spectral compn.: of , the I measumd b~
ujninviiience~ was
m
cam wis
; of a spcctrophotomeler camposedof
Prislu
glx
,~~

,
,
.
.
d''
moxxochr&aat~r and a photoinuldjiliex~; .a Irg discharge tube

L with a: U'oW*s - fattir, bulb. Rrvid:as tlie~ eiciting~~sourci

-mike for a limitd! no'. of!
The log'of the inteitsity'of lumitic
a -.:;T
.
j .
~
i
fi ,
tef
t
selected wave lengths is plotted i~s allunctioii of t
xip
Thcsc results show! (a) that belvw 180*K.' the sluid-way

lax%: i
side of the emission band of A phosphors jr6ws faster t1
the long-wave lingth side will% ixxi,.zieasing temp.; (b)
that inii
thl Etci
h
W of=O!K.~the it,tensity of, thewhole baind,`,'~
h~o
fg
g
~
has a all Cui-tie6vated and Cu-contiminated Ph!*~!
t above 2',!O*K ii sottle, phosphors 6:hibit!a!:, i
phors; and tha

behavior exactly oj)posit~ tli~t of J:a).~ These resulticanubtI.P A
by, aL Sililple

be explained jempiidefieriden c1iiin f thcl!
ti
A III eiory to
Lbsorption coeff.:and of tiofthebisemateiiaL.
'
.
6xisl
explain them, based.on,the *nce of 2 texnp..~dcjendhi 1
'
"j
rse influence iia
the'forvi oU the emission
pr~omsm vi;ith inve
'
4 Q,
'C(
:band, is pmsentedand discussed.,:..,:,R6bert
;T. 0 xx

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7.
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-

SOUDEK, Ivan

Transistor multimeter., Pokroky mat fy2 asir 8, n0.6031 4630

Ultrasonic radar for blind peo-le. 3311
Electroluminiscent pressure gauge. 33V
Miniature silica wat-.ho 331'
Semiconductor household refrigetator. 331
Thermoelement batteries.
342,
Cooling on the basis 0:C the Peltier effec'.. 3421.
A watch without moving parts.
342'r

A Iijuid. laser. 34Z

~MMMEMIM"PI A

an
fic-a i-. is L r.-v'rr !ised*~' Pa." ma fyz a at r 9 no.4,; 239
L,hgnt)IAc. reproduction of Le~evioion pletures. Tbi d. 243
Exoer.'zrzental boiler -for oxtreine -,tpaua Tbid.: 2 4",
bet,t4(,en the Sovint UrAon and I,he Unit6d
~s on
"OoperLticn hi the field of s~it,,~UiLe~z. ,'-'-t6 2 50
v-acuwa siiJlax to rie Tarricellian
of L- Finn J.,,ag-:i on Ibid:*". 250
Instruction of locomotive engb~eer,,- by an,-L-,og ]bid.,

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89745
Z/035/60/000/911/001/001'
10
DOO?/ 10'2
Dl
AUTHORS: Soudn:k Mi3jm1r, Engineer, and
M ial ~'e~, Jiro 1 C
av, andidate of ChemIcaliSciences
TITLE: Spectrographic determination of indi~11'm in -.1lue dust
PERIODICAL: Rudy, no. 11, 1960,-380: 382
TEXT: The article describes spectrographic tests~:Wit~!!the constant-
du~ ~ - ~ I. ~; "
temperature-arc method to determine indium in flue t., The:tests
-were performed with the aim-of finding d rapid melthod'.by,.which,' e,
tallurgical flue dust can be analy Ized for its su~ftabilfty:as a:rai
material source of rare metals.. There are sever Il'methods of,sped-
a
trographic determination of In, but most of themdare explicit ifte-;'
thods developed for analysis of specific materials, su'ch~as sphale-
.rite, galena and mica, as described by A. I. BuS6-~- Ref Ai:iali-
ticheskaya khimia indLia [Analytical Chemistry of:'Indium _Izdatelstvo
I , t ~ '1 1:
akademii nauk SSSR, Moscow, 1958). However,.since h omposition
of flue dust varies, a method had to.be found which would be indepen--
dent of both qualitative and quantitative changes of ;~he.- main c ompo-
j

89745
Z/035/60/000/011/00 1 /00L
Spectrographic determination of indium...., D007/PlO2;'-
nents of samples. Several attempts.we're made~to'.'elimiiiate the ~in-~
fluence of "third components on the spectralline:intensity of'indium.,,71~
A so-called constant-temperature-arc. method, deve ed.'by N. W.~ H.~
lop
Addink J. A. M. Dikhoff, C. Schipper- A_Witiner~and~T.:~ Groot'
(Ref..
0
15: Spektrochim. Acta 7, 45, 1956;,Ref. 16. Applled,Spectrosc6pyI
.128? 1956), where the sample is placed in the crater.Of a heavy car-
bon electrode and then complet6ly burned y the*,arc,;was:succ.6ssfully;,.:-*,
applied for the determination of germanium by M.~Malln6k;(Ref.;:17-."
ow t6sted..
Applied Spectroscopy, 13, 1, 1959 The same method was
for its suitability to analyse indium. in;flue dust. The.tests,'were
performed with a "KSA 1" high-dispersion spectro'raph~:with quartz~
9
lenses, with d/c supplied from a 'IU 300/20 R 301'eiectro'nically-con-
trolled rectifier, a product of the h.g. Ki~izvI'k'Ije"Hn;(K~iz-Ik Natio-,
nal Enterprise, D661n). "Foma Spektro-,Modri 220!t-and~ '!Agfa Blau
.11 it 'i I i, I .-.
Hart photographic plates and Kodak 'Ibl9".and, F5' chemicals we'rei
used for.photographic proce .ssing.. El .ectrodes weri. aph e.,
made of gr -it
rods, supplied by the nj. Elektrokarbon Bratislava (Eliektrokarbon'
National Enterprise, Br tislava) which had to be~~Machined:*to the
Card--27'10

69745:
Z/035/60/000/011/061/001
Spectrographic determination of indium... D007/Dl02
shape shown in Figure 1 to achieve,quiet burning;;of the, arc. Sinc:e
the used graphite was originally not meant for this purpose, spec-
trographic purity could not be achieved, des ite chemical and~phygi-
p
cal purification. The emulsion was calibrated not only with respect-
to the contrast factor (gamma), but also in regard to.thedependen;ce
between the actual intensity of the source and t~e' optical density
for a certain wave length region.- Complete burn!,ng of,5:mg
I C6~03~
was used as light-intensity standard 'with the intensity~scale g1v n~
e
by a 7-stage filter. To coverthe~entire range:of optical densities,
from the lowest values of the background,to the'highe'st In concen-
trations, two lines of different intensity, namely,Co'I 3039-57 can'd
Co 1 3042.48 were chosen.for construing the calibratfp*n curvesp-1-
(Fig. 2). From the last 4 In lines,the line 1n;I 30;39-356, de-
signated U-4 in Harrison tables (Ref.-20: G. R.:;Harrlson! M. I. T.
Wavelength Tables. John Wiley & Sons, New York !-939,)~ was chosen
(Fig. 3), since the other three are not suitable'forl,the' onstaLt-n-
c
temperature-are method. For the dispersion and~resoiving power of
be ipected'o'nly
the used instrumentl a disturbin could e
from Fe at a concentration of 2No and morel -Lnd. f r6m~ td Bata concen-
gard-3/1-0-

89745
Z/035/60/bOO/011/00VQol
Spectrographic determination of indium... DOOVD1021'
tration of 1011o and more. However, neither element occurs in such
high concentration in -the flue dust. The testsVere-performed~under
W
the following conditions: Adjusted wavelength 3100bI*-:6l*t idth
I
'0.025 mm; voltage (source not loaded),,300T- rentl(with electro-
cur"
des in con-tact), 15.5 A; loading resistance in series'r4ith theiar~
25 ohms; electrode gap, 9 mm; weight of sample i~! thel~zinode, 54 0.1
mg; arc ignition by electrode contact; exposure:time till cdmplFte
burning of the sample (5 6 minutes).. Densitome'tric,.data was,:ob-'
tained at 30 X magnification,and a slit width of.I.',0.45Imm. The,cur-
.rent was not regulated during.exposure, but the~rated;electrode' gap
was maintained constant. The time of complete sample!burning wasz~
determined from spectrograms developed in time. 'Dry,i'fipely-grouiid
samples were placed in the anode crater and covered by:
mig Si02 dnd
some graphite. Four samples of-equal co ositi6n werb~!exposed~lon':.
MP
one plate, together with the r&ference.Co spectrum. A..'calibration
curve was drawn for each plate. The percenta ei~f Iniin the s ample
9 ~q
was read from the curve after calculating the:actuallintehsity~byl
subtracting the background intensity from the total ih~tensity.',,The
he: sample can
assuniption that the influence of major components.of

89745
Z/035/60/P00/011/061/001
Spectrographic determination of indium.... DOOVD102..'
be ignored was verified by totalburning of various synthetic 5~lmg'l
standards with the same content of,In, but with var i i~~matrice'
y iq S con-
taining PbS, ZnS, SnO , As20~, Sb2%,CuS, Al~O-z an d Si(52. : The i in-.1
tensity of the In 3034 line luctua ed'only wit'Ln';limlits permissible
by the method. For construing the analytical.curve, synthetici,stan-
dards were prepared by mixing the basic In.standa~rlld c~ontaining~,~O 1%
In with a matrix of approximately the same co~mp6sition;.as found in
flue dust. The corrected In 3039 line, intensiti66~iare!,~lotted vier IsuIs
In % in logarithmic scale in Figure 4. From 0.001% (t,h-re~hold'sensi-
tivitY) to 0.03% In the curve is a straight line,,.above'O.03% the in-
fluence of self-reversal begins asserting itself.,~~In-;C.Onclusioil, -~~-,he
authors state that the tests proved the suitability of the constant-
temperature-arc method for spectrographic determination':of In in flue
dust. The reproducibility of the method was determin~d;by fre ent- j
ly repeated tests. The mean square.error was foun'd to' be + 13Z. The
good agreement of results obtained by the described-m6thod_with~thbse
obtained by chemical analysis is shown in Table.l." Thel~time required
for analysis is less than 1 hour. 'The accuracy it -considered ad-
equate in view of the more complicated and tedious chemical methods
Ca,rd--5/107--

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