CO~EPH~AHI/IE PABOT, O H Y B J I H H O B A H H B I X TO JI B EO B HE]IICEOM H 3 ~ A H H H HACTOHI~EF0 H{YPHAJIA

A B S T R A C T S OF P A P E R S W H I C H H A V E A P P E A R E D O N L Y I N T H E C Z E C H E D I T I O N OF T H I S J O U R N A L ~

E. F. HO.LLs Cs. 6as. fys. A 10 (1960), 283

I~ H P O B J I E M E F P A H H I ~ 3 E P E H C BOJIBIlIHM YFJIOM II

Ha ocgone npOCTO~ MO~enH Bb~BOXHTC~I 3aBtIC!~IMOCT5 IIIIIpHHBI ~nC~oEagg~, BXO~HI~I~X B Eocy~O rpaHHgy 3epeH, OT ~X B3aHMHOrO paCCTOHHH~I. B~Be~eHHoe COOTHOmeHHe cpaB- HHBaeTc~t C 8aBHCHMOOTBIO p a ~ y c a s~ep ~ c ~ o ~ a ~ f i OT paCCTO~IHH~I, iipe~iio3iapaeMo~ npH ~mo~e ~cnpaB~eHHO~ ~opMy~ P~a-IIIoI~m.

ON T H E P R O B L E M OF L A R G E A N G L E G R A I N B O U N D A R I E S I I

Using a simple model the variation of the width of dislocations forming a t i l t grain boundary with their mutual distance is derived. The derived relation is compared with the variation of the dislocation core radius with distance assumed in the derivation of the corrected Read-Shockley formula.

D. S~NK~ Cs. 6as. fys. A 10 (1960), 288

H P O I I O P I ~ H O H A J I B H B I M C q E T q H H T E I I J I O B B I X HEI~ITPOHOB, 3 A H O J I H E H H I)II~ BF 8

B pa6oTe on~caH~ ~ O ~ c T p y ~ nponop~HoHa~LHoro c~er wepM~ecI~HX HefiTpO- HOB, no~y~eHHe ]3F a ~ np~Be~es~ OCHOBH~Ie xapaHrepHcTHRH yKaUaHHHX c~eT~n~OB. ~a~ee, Hcc~e~oBaJioc5 B~HHHe 3JIeI{TpOHeraTHBHhIX npnMecefi B BFa Ha CBOtICTBa C~eTgHHa.

P R O P O R T I O N A L C O U N T E R OF T H E R M A L N E U T R O N S F I L L E D WITH BFa

The construction of a proportional thermal neutron counter and the preparation of BFa is described and the basic characteristics of these counters are given. The influence of eleetronegative impurities in BFa on the properties of the counter was also studied.

~. J~cH Cs. 5as. fys. A 10 (1960), 294

~ P A ~ H O F P A O H H I IPH HOMOI~I I ATOMOB O T ~ A ~ I H

0n~caHa TexH~Ka p a ~ o r p a ~ np~ no~om~ aTOMOB OT~atlII H MeTeR npHroToS~eH~U HCTOHHHEa aTOMOB OT~ag~, y~O6HOrO ~ 3TI~X ~enefi.

RADIOGRAPHY WITH RECOIL ATOMS

A description is given of the technique of radiography using recoil atoms and the method of preparing a source of recoil atoms suitable for this purpose.

I. Lv.H~AVS, P. M o ~ , B. S~.~viK ~s. 5as. fys. A 10 (1960), 297

Y C T A H O B H H ~J IH H E I I P E P B I B H O F O H 3 M E P E H H H BAPHAI~HM H H T E H C H B H O C T H H O C M H q E C H I / I X JIYqEITI

B pa6oTe on~caH nexocaoBa~f i ~ap~aHr nyS~ec~oro Te~ecRona ~ HefiTpOHHOrO MOHHTOpa, EOTOpBIe 5BIJIH n0cTpoeH~ cor~acHo OSmHM yI~aaaH~M I~CAFH ~ a ~3MepeHH~ no nporpaM~e MFF, ~ o6cym~aeTcg On~T ~o~roBpe~eHHofi o~cn~yaTa~H~.

A P P A R A T U S F O R P E R M A N E N T M E A S U R E M E N T OF V A R I A T I O N S . IN INTENSITY OF COSMIC RAYS

A description is given of Czechoslovak variations of the cubic telescope and neut ron monitor, which were constructed according to the general regulations of CSAGI for measurements in the IGY programme; the experience obtained with their long-term operation is discussed.

9,00 Hex . cI:~/,i3. ~ I . B 11 (1961)

W. A. WOOS~E~ (Js. tas. fys. A 10 (1960), 303

O H P E ~ E J I E H M E NHPNFI / IX I I O C T O H H H B I X HPMCTAJIJIOB IIPM IIOMO/I~I/I ~!/I(1)r OTPA~I~EHHBIX P E H T F E H O B C t ~ I X

JIYtt E 1~

B ~ByX paa~enax pa6oT~I paaBi~Ta Teop~ pacceg~ia pegTreHoBci<~tx ~iyqe~ OT i~p~cTa~ia, I~OTOpOM pacnpoeTpa~moTC~ TepM~ect~I~ Bo~Sym~e~l~e ynpyr~le B0nI~r. B nepBofi gaeTg

~icc~ie~yeTcg ~anpaB~eH~e pacnpocwpaI~eHg~ peI~TreHo~c~oro IIyHI~a ogyc~osneHHoe ~ a ~ o ~ BOnl~Ofi, I~OTopag itapymaeT pery~zgpHy~o pemeTt~y. Bwopaa HaeT~, I~acae~cg CBa3II Merely aMIIJ]HTy~Iofi Eo~e6aHgg H HHTeHCHBHOCTI~IO coorBeTcTByiomero ~ q ~ y s ~ o r o nyHna. ~ u ~ n ~ e T p a ~ nepBofi HaCwII Teop~ ~cnon~yewc~ or/wHHeeEa~ aHa~or~ c npmue~e~eM npocworo ~ p a ~ o H ~ o r o ycwpol~cWBa. Bropaa HacT~ pa~B~Baewe~ ~a OCHOBe 06BIHH0fl Teop~H pacce~H~ OT pemeT~ c C~4HyCOII~aJI~I~BIM!4 Hapymeg~aMg. COOTHOilIeH!4e ~,~em~(y aMIIJIl~Ty~loI~ EonegaHHg ~ HaeTOTOI~ BI~IBO~ffTCg K3 TepMo~IMHaMgHecI4OFO ye~IOBYlg, Tpe6ym- n~ero, "~TO6~ nam~fi T~r[ I~o~eSaH~g nepeHoc~ O~HHaEoBylO eHeprgm, OTHOCeHHyIO t~ 3~IeMeHTapHo~ ~fge~I~e ~p~cTan~a. HanoHe~ Heno~B3yeTcg EnaceHHecEag Teop~g pa c- np0cwpaHenH~ ynpyr~x B0~H ~ i~p~cwan~e, UT06~ eBg3awB IIHTeHClIBHOCTB ~I~d~y~oro pac- CegHgg e ynpyr~M~ IIOCTOaHH/aIMII. llp~Bo~gwcg no~po6HOCT~ 3]KcIIepgMeHTa$1BHI~IX MOTO- ROB, a ~IMeHHO, Ealr ~)OTorpa~!/igecl4!~x , Tal~ II I~IOHII3aI~HOHHI~IX. B EaHeeTBe IipgiMepa o6cym~aere~ ripgMeHeHHe MeTo~a ~ Hp~eTa~I~y BaHa~gg. B 3ai~J:iioHeHiIe yna3~BaIOTCg rlpegMynleCTBa MeTO~a: BO3MOH~HOCTI~ H3yHeIIIIH KpIIcTaJIJIOB MeHl, IlrgX, HeM llpll JiIo6bix ~pyr~x MeTogiax H3MepeH~g; BO3MO~ICHOCTI~ ]~3yHeH~g MgFE~X gJIg xpyrlH~X RpgcTa~JiOR np~ ~/o6ofi ~eMnepa~ype, TaK ~a~ po~ ~rpae~ TO~O TeMnepa~ypa ~p~cTa~a. Hello ~ CTaTEoM ~IeTo/Ia Hlangeweg ere Ma~a~ TOHHOCT~, EOTOpa~I 1~ zIygIneM c~yHae COCTaB~IHeT 5 %, a 06~HHO eme ~ e ~ m e .

D E T E R M I N A T I O N OF E L A S T I C C O N S T A N T S OF C R Y S T A L S U S I N G D I F F U S E L Y R E F L E C T E D X - R A Y S

The theory of the scattering of X-rays from a crystal by thermally generated travelling elastic waves is developed in two parts. The first part concerns the direction of travel of the X-ray beam due to a given wave which perburbs the regular lattice. The second par t concerns the relation between the amplitude of the vibrat ion and the intensity of the corresponding diffuse beam. An optical analogy, involving a simple diffraction arrange- ment, is used to illustrate the first part of the theory. The second part of the theory is developed from the usual diffraction theory of a sinusoidally perturbed lattice. The ther- modynamic requirement tha t each mode of vibration shall carry the same energy per uni t cell of the crystal is used toxelate the amplitude of vibration to the frequency. Lastly, the classical theory of the transmission of elastic waves through crystals is used to connect the intensity of diffuse scattering with the elastic constants. Details of the experimental methods, both photographic and ionization, are given. An example of the application of this method to vanadium metal is discussed. In summarising the advantages of the me- thod it is pointed out it can be applied to smaller crystals than any other method; i t can be used with soft or fragile crystals and at any temperature, since only the tempera- ture of the crystal is relevant. The disadvantage of the method is its poor accuracy, which is not better than 5% and is usually less.

J. Sx~rvAsrE~, M. VESELA Cs. ~as. fys. A 10 (1960), 312

T E M H E P A T Y P H A I t 3 A B H C H M O C T B C I ~ H H T H J I J I I t I I I / I O H H b I X ~ E T E H T O P O B

;~eweRTopoB C opraH~HecK~Ma ~ Heopra~Hec~M~ CIIIIItWIgJIgIItwopaMII HsMepanach 8aBIICIIM0CTt~ BI~IXO~a OT TeMnepawypl~. B 06JIaCwII OT + 5 ~ ~0 + 40~ KOa~9~III~IIeHTIM opra~HecI~X CI~IItITt~JIJI~ITOpOB oTp~i~aTe~Ln~e, 3aBI~CIIMOCTI~ NaI(T1) OW TeMnepawyp~ 06- par~a~. r cneETpa a~nnnTy3 C~HW~JIngTopa ZnS(Ag) ~- n a p a ~ H B aaB~C~MOeT~ OT TeMneparypl~i ~e i~3MeI~aeTcg. TeMnepaTypnl~ie I~O3~I~eHTI, I ~oToyM~o~ITenefi R C A 6655 t~ 6342 B ~cc~Ie~o~a~ofi 06~IaCT~ o T p ~ a ~ e n ~ I e .

-~zech. J. Phys. B 11 (1961) 291

T E M P E R A T U R E D E P E N D E N C E OF S C I N T I L L A T I O N D E T E C T O R S

The temperature dependence of the efficiency was measured on detectors with organic and inorganic scintillators. In the range from + 5 to + 40~ the coefficients of the organic scintillators are negative, the dependence of NaI(T1) on the temperature is reciprocal. The form of the amplitude spectrum of the scintillator ZnS(Ag) + paraffin does not vary with temperature. The temperature coefficients of R C A 6655- and 6342-type photomultipliers .ure negative in the range measured.

F. KAl~EL Cs. 5as. fys. A 10 (1960), 316

B b I P A I I ~ H B A H H E 9 JI E I ( T P 0 JIIO M FI H ECI~ E H TH BI X I/I O O T O H P O B 0 ~ H I K I / I X MOH01~PHCTAJI$IOB C E P H H C T O F 0 H H H t f A

0n~ca~ MeTO~I n~pan~5~an~ M0~I0~pscTa~oB ZnS ~a~ ~)535gec~sx ~ccae~o~a55fi, nps- ~e;~e~ yC~IOBS~ ;~U 5o~iy~e~5~ ~SCT~X ~ JIIOMHttecIIettTHt)IX MOHOHp5cTaJI~IOB 5 cnoc05 O~TSBa~5~ Me~BI0 H Mapras~o~.

T H E G R O W I N G OF E L E C T R O L U M I N E S C E N T A N D P H O T O - C O N D U C T I V E S I N G L E C R Y S T A L S O F Z I N C S U L P H I D E

The preparation of ZnS single crystals for physical research is described. The conditions for the preparation of lmninescent and pure single crystals and the method of activation with copper and manganese are given.

J . Gh~h Cs. 5as. fys. A 10 (1960), 325

0 H B I T H O B O F 0 M E T 0 ~ A BLIPAII~I/IBAHYIg M O H O H P H C T A J I J I O B F E P M A H ! J g C H O C T O H H H B I M u C O I I P O T I / I B J I E H H E M

055cattl)i ~i oI~egeHu On~T~ II0 B~pan~ssa~sm MOHOI~p5cTaJI~IOB rep~a55~ MeT0~0M n~a~ammero Tsr~u.

E X P E R I E N C E W I T H N E W M E T H O D OF G R 0 W I ~ G G E R M A N I U M S I N G L E C R Y S T A L S W I T H C O N S T A N T R E S I S T I V I T Y

The experience with growing single crystals of germanium by the floating zone method is described.

J . T m ~ , J. ZELEI~KA Cs, 5as. fys. A 10 (1960), 328

I I b E 3 0 D J I E I ~ T P H t I E C H H E P E 3 0 H A T O P B I H3 C H H T E T Y I q E C I ~ 0 r 0 I~BAPL~A C OCHOBHBIM~I I IPO~OJILHBIM/ / I I4 C~BI~IFOBLIMI/I

K O J I E B A H ] / I g Y [ g B ~ 0 J I b FPAHI/I

IIpsBe~eH~,i peayJi~TaTbi 53Mepes~ n~e3o~eI~Tps~lecRsx pe~osaT0pOB C IIpO~o~t,n~M~r C~Bgr0BsIM5 Ro.~egaH~gM~ B~0~L rpa55 53 5cEyccTBeHHBIX MOSOKp~cwa~0B ~Bap~a,

B~pame55ux 53 8awpaBoK B ~op~e II:IaCTHHKH C T0~'nl~51=i0]~ B ~anpaB~ens5 oc5 Z. Hc- r ocoSe~o pesoHaHcHag gacw0wa, e~ TeMnepaTyp~a~ 3aB!~ICgM0CTB, g~yIdTSB- ttOCTB 5 ~05pOTH0CTB Q ~e~wp~ec~ofi -~ssBa~eSTH0fi cxeM~ pe30Haw0p0B. Ha~epe~se npo~ane~eso Ha np0~o~5o ~o~eS~m~sxc~ y a ~ x cTep~uX cpesa X Y t _ r ( ~ T 0T 0 ~ 310 5 ~ H Ha HBa~paTH~X nYlacwHtIt~ax epe~a D T (XYl52 ~ ~o').

L O N G I T U D I N A L A N D C O N T O U R S H E A R V I B R A T I N G P I E Z O E L E C T R I C R E S O N A T O R S F R O M S Y / ~ [ T H E T I C Q U A R T Z

The paper gives the results of measuring piezoelectric, longitudinally and contour shear v ibra t ing resonators made from artificial single crystals of quartz grown from nuclei in the shape of a plate with the thickness in the direction of the Z axis. In p~r~icular a s tudy is made of the magnitude of the resonance frequency, its temperature dependence, the magnitude of the dynamic induction and the Q-factor of the electric equivalent circuit of the resonator. The measurements were carried out for longitudinally vibrating narrow XYt_r rods (for ~ = 0 ~ to 5 ~ and square-shaped D T - c u t plates (YXI~z ~ co').

292 ~ex . ~ z , )K. B 11 (1961)

J. KvAs~Ic~ Cs. 6as. fys. A 10 (1960), 333

3 J I E H T P O M A F H F I T H A ~ [ C T P Y H T W P A H Y H J ] [ O H O B

B paSoTe oScym~eH~I, c o~aofi CTOpOiita, ocnoBrt~ie TeopeTggecI~IC ilpe~ilOC~iami, ~a I~O- TOplax OCttOBa~O ~ticliep~MeHTa~IBiaoe ~Icc~e;~o~aiiHe 3~IeI<TpoMarHl~T~tOfi cTpyI~Typ~I HyI~IO- ~ o s , c ~pyrofi - - pe3ynBTaT~I ~ BOagOm~Iag Tpa~TOBt~a OTIIX peayaBTaTOB.

T H E E L E C T R O M A G N E T I C S T R U C T U R E OF N U C L E O N S

The paper deals with the basic theoretical assumptions, on which an experimental . . . . \ �9 mvest~gatmn mto the electromagnetm structure of nucleons ~s based, and the results and possible interpretation of these experiments.

J. NI:TTIt~G Cs. 5as. fys. A 10 (1960), 349

I IP I tMOE H C C J I E ~ O B A H H E METASIJIOB I I V T E M I I P O C B E t t H B A H F I ~ t O J I E H T P O H H D I M M H H P O C H O I I O M

~[aR I~p~ITHqecKHfi O58Op ~IoBefim~Ix paSoT no IIpaMoMy sJIeI~TpoI~nO-M~II~pocI~Olm~IecI~o~ty HCCXIe~oBaHHIO 2i~/CJIOKal~I~fi II aBJ~e]~fi, CB~3aHHIJX C HgMI~, B TOHI<I~X MeTaJI~}VIecI~I~X CJIOgX, IIo~yqeH~HX l~Iewo~oM Y[. ]3. F~pma ~ ~p. P ~ T~H~I'{HBIX pe3y~hWaTOB ;Io~y~e~wnpyeTc~ CIII~IMI(aM!~I, c~e~aii~H.~m r ~ a B i ~ o5pa80~, CoTpy~Hm~aM~ aBTopa.

T H E D I R E C T E X A M I N A T I O N OF M E T A L S BY T R A N S M I S S I O N E L E C T R O N M I C R O S C O P Y

The paper critically sums u p the results of the latest papers on the direct electron- microscopic study of dislocations and effects connected with them in thin metal foil pre- pared by the method of P. B. H i r s c h et al. A number of typical results is documented in the electron microscope photographs made mainly by the author's collaborators.

S. LIBOVICK~- Cs. 6as. fys. A 10 (1960), 355

P E 3 A H H E MOHOI~PFICTASIJIOB METAJIJ IOB

~an o63op E oi~eH~a l~IeTO~OB pesaHHu ~iORORpgcTa3~TfOB MeTa313IOn.

T H E C U T T I N G OF M E T A L L I C S I N G L E C R Y S T A L S

A survey and evaluation of the methods of cutting single crystals of metals is given.

Cs. 5as. fys. A 10 (1960), 364

K. VACEK: O. Stasiw." Elektronen-u. Ionenprozesse in Ionenkristallen mit Berticksich. t igung photochemischer Prozesse.

Cs. 5as. fys. A 10 (1960), 365

E. ANTO~SiK: T. S. Moss : Optical Properties of Semi-conductors.

Index of Crystallographic Supplies. Cs. 5as. fys. A 10 (1960), 366

L. ECF~EI~OVi ~s. 5as. fys. A 10 (1960), 369

I. O B ] ] J ~ E F O C Y ~ A P C T B E H H A H I { O H q ) E P E H I ~ H I t riO 3 J I E I ~ T P O H H I ~ E

1 ~t N A T I O N A L C O N F E R E N C E ON E L E C T R O N I C S

Czech. J. Phys . B 11 (1961) 2 9 3

J . V_ig!A (]s. 6as. fys. A 10 (1960), 371

B O 3 H H H H O B E H H E H P A 3 B H T H E B A H u 1 6 5 3 J I E H T P O H H H 1 4 B ' 4 E X O C J I O B A H H H

O R I G I N A N D D E V E L O P M E N T O F V A C U U M E L E C T R O N I C RESEARCH IN C Z E C H O S L O V A K I A

L. PEKAI~EK Cs. 6as. fys. A 10 (1960), 379

M O H H 3 A I ~ M O H H t ) I E HBJIEH14H B F A 3 A X

I O N I Z A T I O N P H E N O M E N A I N G A S E S

L. P i T ~ [Cs. 5as. fys. A 10 (1960), 380

C O B P E M E H H O E C O C T O / t H M E e9143I/II{14 H H 3I~M X ~ A B J I E H M I 4

B cTaTI, e npoBe~@H 063op o coBpeMeHHoM COCTOgHHH ~HaHI<H HH3t~IIX ~aBJIeHnfi, Me- To~ax iio~iy~em~a ~t MeToAax HSMepeHgg Hf/I3HHX 7~aBo~eH~Ifi.

x. ON T H E P R E S E N T S T A T E O F ~ L O W - P R E S S U R E P H Y S I C S

A survey is given of the present s ta te of low pressure physics both as regards method s of obtaining low pressures and methods of measuring them.

J . POI~AI~KA Cs. 5as. fys. A 10 (1960), 392

I l E P C I I E I ~ T H B S I H C I I O J I t ) 3 O B A H H H 3 J I E H T P O H H I ~ H B H A I I I E M H A P O ~ H O M X O 3 H M C T B E

T H E P E R S P E C T I V E S F O R T H E U S E O F E L E C T R O N I C S I N O U R N A T I O N A L E C O N O M Y

J . DOHNiLE~: Cs. 6as. fys. A 10 (1960), 393

M A F H E T P O H I ~ I ~ J I H I I O C T O H H H O M PAEOTI~I B ~ I / I A I I A 3 O H E 12,25crn

M A G N E T R O N S F O R P E R M A N E N T O P E R A T I O N I N 12"25em B A N D

V. FI~Ir Cs. 5as. fys. A 10 (1960), 393

O I ~ E H H A O C H O B H t ) I X C I I O C O B O B I I E P E C T P O F I H I / I M A F H E T P O H A C T O t l H H 3 P E H H H -3(I)(I)EHT14BHOCTH H C T A t ~ H J I I ) H O C T H ~tACTOTBI

E V A L U A T I O N O F F U N D A M E N T A L M E T H O D S O F T U N I N G M A G N E T R O N S F R O M P O I N T O F V I E W O F E F F I C I E N C Y

AND FREQUENCY STABILITY

V. HLUBU6EK Cs. 5as. fys. A 10 (1960), 394

MOII~HblE I l I H P O H O I I 0 5 I O C H b I E F E H E P A T O P I ~ I I4 VCFI~II4TES[I/I] CO C H P E I I ~ E H H t ) I M D J I E H T P 1 4 q E C H H M H MAFH14THt) IM II0o~IHMH

O U T P U T B R O A D - B A N D G E N E R A T O R S A N D A M P L I F I E R S W I T H C R O S S E D E L E C T R I C A N D M A G N E T I C F I E L D S

V. I-tOLAN Cs. 5as. fys. A 10 (1969), 394

O - t ~ A P H H H O T P O H , I I O C T P O E H H G I F I I I IPH IIOMOII~H 3 J I E H T P O H I 4 H H M H H P O B O J I H O B O I ~ O C H H J I J I H T O P

O - C A R C I N O T R O N , E L E C T R O N I C A L L Y T U N E D M I C R O - W A V E O S C I L L A T O R

294 "-Iex. ~:~i43. ~ . B 11 (1961)

J . ~)A~LOV Cs. 6as. fys. A 10 (1960), 395

t ~ O F E P E H T H O E B b I C B E ~ I H B A H H E 3 J I E t ~ T P O H O B B t~PYFOBOM u HA 2,5MeV B ~ H A I I A 3 O H E C A H T H M E T P O B H X

H M H J I J I H M E T P O B B I X BOJIH

C O H E R E N T R A D I A T I O N OF E L E C T R O N S I N 2'5MeV C I R C U L A R ACCELERATOR IN CENTIMETRE AND MILLIMETRE WAVE BAND

H. BA~o~ Cs. 5as. fys. A 10 (1960), 395

O H P E ~ E J I E H H E H 3 H C I I E P H M E H T A J I I o H A g I I P O B E P H A 3 A E H T P I / I g E C I ~ H X I I A P A M E T P O B O T P A ~ A T E J I b H b I X HJII / ICTPOHOB, CJIu B HA~tECTBE H E P E ~ A T g H I ~ A HA T E J I E B H 3 H O H H I o I X

P E T P A H C J I H H H O H H I o I X C T A H I ~ H H X

D E T E R M I N A T I O N A N D E X P E R I M E N T A L V E R I F I C A T I O N O F E L E C T R O N I C P A R A M E T E R S OF R E F L E C T I O N K L Y S T I ~ O N S ,

S E R V I N G AS E M I S S I O N S O U R C E I N T E L E V I S I O N R E T R A N S L A T I O N S T A T I O N S

M. PLECIT~ Cs. 6as. fys. A 10 (1960), 396

/fABOPATOPHI~IITI YIEPMATPOH C HI43NHM IIIYMOM ~JIH ) ~ H A I I A 3 O H A B O ~ H B 6era

L A B O R A T O R Y L O W - N O I S E P E R M A T R O N F O R 6cm W A V E B A N D

P. MA:aEg CS. 5as. fys. A 10 (I960), 396

H O A H C H A J I B H B I E 3 ~ E H T P O H H B I E JIAMHBI YHB r4EXOCJIOBAI~HO FO H P O H 3 B O ~ C T B A

C O A X I A L V. H. F. V A L V E S OF C Z E C H O S L O V A K P R O D U C T I O N

P. HA~ov~iK Cs. 5as. fys. A 10 (1960), 397

I I E P C H E H T H B b I H BO3MOH~HOCTH MOII~HBIX u ~ J I g H B E T H O F O T E J I E B H ~ E H H H

P E R S P E C T I V E S A N D P O S S I B I L I T I E S OF O U T P U T A M P L I F I E R S F O R C O L O U R T E L E V I S I O N

:~. V~m Cs. 6as. fys. A 10 (1960), 398

Y T O q H E H H E Y P A B H E H H H CAFA B CJIV~IAE, H O F ~ A B3AI/IMO~EITICTBt4E HOHOB BLIPAH{EHO , , ~ A J I E H H M H " CH/IAMH

B pa6oTe ~CCJIe~y~owc~ panEo~ec~Lie i~oHI~ettwpalin~ nOHOB Tep~eci{ri HoH~i~oBam~oro ra3a. Bs~pama~ B3a~Ml~oe B ~ s ~ e ~IaCTHI~ HOHH3OBaltHOFO ra3a , , x a ~ g K ~ " c~aM~, no~yqaeM ypasHe~ze Cara X~g pa~oBecnofi RoHge~Tpag~z.

B~me~e~moe ypaB~en~e Cara co~epmr~T ~ g H ~ e B3aHMO~el~CTBgg HOttOB H ~tB~geTC~ wa~M me npOCT~M, sa~ n ypaB~e~e Cara, sbme~eHgoe T g g a g o ~ , ~<owopb~fi ~3asMo~ef~- CTB~e Z0HOB Bb~pa3~ ~aE gFiCT0 Ey~IOHOBCI~Oe.

R E N D E R I N G SAHA'S E Q U A T I O N M O R E A C C U R A T E F O R T H E CASE W H E N T H E I N T E R A C T I O N OF T H E I O N S IS E X P R E S S E D

BY " D I S T A N T " F O R C E S

The equilibrium concentrations of ions of thermically ionized gas are investigated. If the interaction of the particles of the ionized gas is expressed in the form of "distant"

Czech. J. Phys. B i i (1961) 295

forces we obtain Saha's equation for the equilibrium concentrations of ions. The Saha equation derived here represents the influence of the interaction of the ions and is more general than the Saha equation derived by B. L. T i m a n , who expressed the interaction of the ions as a purely Coulom b equation.

S. LisKA Cs. 5as. fys. A 10 (1960), 404

P A C I I M J I E H I / I E FPAq)I/ITA B P A 3 P H ~ [ E H ~ 3 I ~ O r O ~ A B J I E H I / I I t B P T Y T H B I X H A P A X

THE SCATTERING OF GRAPHITE I N A LOW-PRESSURE DISCHARGE IN MERCURY VAPOURS

L. PEKiREK, V. KRPATA Cs. 5as. fys. A 10 (1960), 407

I I 3 M E P E H I / I I t B P E M E H PEJIAI~CAIII/II/1 B H ~ A 3 M E B O ~ O P O ] ~ H O F O P A 3 P H ~ A

M E A S U R E M E N T OF R E L A X A T I O N T I M E S I N T H E P L A S M A OF A H Y D R O G E N D I S C H A R G E

M. NoviK Cs. ~as. fys. A 10 (1960), 407

I I P O C T P A H C T B E H H I o I I ~ I I E P ! / I 0 ~ HO~B!/IH~HIoIX CJI0]~B HAH ~ Y H H ~ F I H H H T E H C H B H O C T H 3 J I E H T P H q E C H O F O IIOJIH

B TJIEtOII~EM P A 3 P H , ~ E

SPATIAL PERIOD OF MOVING STRIATIONS AS A FUNCTION OF THE ELECTRIC FIELD STRENGTH IN A GLOW DISCHARGE

M. ~fOHA ~s. 6as. fys. A 10 (1960), 408

H 3 M E P E H I I E I~OHIIEHTPAIII / I I / I O J I E H T P O H O B I/I I/IX q) tCTOTIoI CTOJIHHOBEHHITI I IPH IIOMOIIII/I T O P O I / I ~ H O F 0 P E 3 O H A T O P A

M E A S U R E M E N T OF C O N C E N T R A T I O N OF E L E C T R O N S A N D T H E I R C O L L I S I O N F R E Q U E N C Y B Y M E A N S OF A T O R O I D A L

R E S O N A T O R

R. BAKU-LE, M. ~ICHA, V. VESELS~, J. KRACIK Cs. 6as. fys. A 10 (1960), 4 0 8

H O M H J I E I { C H A / t H P O B 0 ~ I / I M O C T b IIJIA3MBI T J I E I O I ~ E F 0 P A 3 P I t ~ A B H E O H E IIPI/I I I O C T O H H H O M HAIIP/tH~EHI/II/I

C O M P L E X C O N D U C T I V I T Y OF P L A S M A OF D.C. G L O W D I S C H A R G E I N N E O N

J. ]JUR6E~ Cs. 5as. fys. A 10 (1960), 409

P A ~ H OCII E t~TP OCH O II Htt EC!~ O E !/ICCJIE ~ O B A H HE 3 J I E H T P I / I q E C H O F O P A 3 P H ~ A B F A 3 E

R A D I O S P E C T R O S C O P I C I N V E S T I G A T I O N OF E L E C T R I C D I S C H A R G E I N GAS

J. K~AcI~ Cs. 5as. fys. A 10 (1960), 409

HOBOPA~IHBAtOI~I / IECH ] / IHYPBI B P A 3 P I t ~ E H P H HI/I3HOM A A B S f E H H H

R O T A T I N G B E A M I N A L O W - P R E S S U R E D I S C H A R G E

296 ~ex. cI~i43. ~K~2. B 11 (1961)

P . KOCIAlg Cs. 6as. fys. A 10 (1960), 409

0 H E I ~ O T O P b I X I t B J I E H I / I H X B T J I E t O I I I E M P A 3 P I t ~ E B F A 3 A X !/I H A P A X O P F A H ! / I q E C H ! / I X COE]~I / IHEH! / I /~

S O M E P H E N O M E N A I N A G L O W D I S C H A R G E I N G A S E S A N D V A P O U R S O F O R G A N I C C O M P O U N D S

B. GRoss Cs. 6as. fys. A 10 (1960), 410

' T E I I ~ ' I O T A I4 3 / I E I ~ T P H q E C H A H I I P O B O ~ I / I M O C T b Y I [ I A 3 M b I ~ u MA JI O IYl M O I ~ H O C T H

T E M P E R A T U R E A N D E L E C T R I C A L C O N D U C T I V I T Y O F P L A S M A B O W W I T H L O W P O W E R

V. TRUlVE~EK Cs. 6as. fys. A 10 (1960), 4~0

O ~ H O H O J I I O C H b I E B b I C O I ~ 0 q A C T O T H b I E P A 3 P H ~ b I I I P H A T M O C q ) E P H O M ~ABYIEHI / I I / I

U N I P O L A R H. F. D I S C H A R G E A T A T M O S P H E R I C P R E S S U R E

V. HERNOCH Cs. 6as. fys. A 10 (1960), 411

A H 0 ~ H O E H P O C T P A H C T B O I ~ P A T H O B P E M E H H O F O 3 J I E H T P H q E C H O F O P A 3 P H ~ I A C BOJIL]]]OITI

H H T E H C H B H O C T I ~ t O T O H A

A N O D E S P A C E O F S H O R T - T I M E H I G H - I N T E N S I T Y E L E C T R I C D I S C H A R G E

A. H I x Cs. 5as. fys. A 10 (1960), 411

B O ~ [ O P O ~ H b l E T A I ~ H T P O H b I H I/IX I I P H M E H E H H E B H A ~ I E C T B E OCI~Ho~IJ IHTOPO B

HYDROGEN TACITRONS AND THEIR USE AS OSCILLATORS

L. ECXE~TOVA Cs. 8as. fys. A 10 (1960), 412

A B T O O M F I C C H H T O H I ~ H X ~ H 3 J I E H T P H q E C R H X C J I O E B

IIpnBe~e~bi npe~cTanae~H~ o MexaHt~3Me aBT03~ICC~III TOHHPIX ~Haae~Tpn~ecK~x Ca0@B H MeTO~H aRc~epnMeETaa~Horo n o a y q e ~ a ~ ~Iccne~oBan~ aM~CC~. 06pame~o BH~MaH~e Ha 3aBI~CIIMOCTb aToro ~Bne~n~ o~ BO3Hm~oBeHH~ p a 3 p ~ a B B~ICO~0M Ba~yyMe. IIp~Be~eH~I xapa~TepncT~n aM~TTepo~, y Howop~Ix 6~IaO co3~aHo cH/~ttoe anenTp~ec~oe noae B TOm [~.PIX CSIOHX C3II0~I:,I I~p~Iaomem~e~ l~IallpameH~I~ Merely MeTa.~Inn~IecI~ofi IIO,~I~IO;~I~Ofi i~i Me- Tana~ec~cofi CeTHOfI, npnnome~mofi v: noBepxHocTi~, 1~ o6cym~eH~i peay~ILTaTl~I n3~epeH~fi.

AUTOEMISSION FROM T H I N DIELECTRIC LAYERS

Conceptions as to the mechan ism of autoemiss ion f rom th in dielectric layers and methods of exper imenta l ly obta in ing and inves t iga t ing this emission are given. The connec t ion be tween this phenomenon and the creat ion of a discharge in high v a c u u m is po in ted out. The character is t ics are g iven of emi t te rs where a s t rong electric field was fo rmed in th in layers of mica by in t roducing a vol tage be tween the metal l ic base and the meta l l ic grid pressed onto the surface; the results of the measurements are discussed.

.Czech. J. Phys. B 11 (1961) 297

L. KRYgKA, L. EOKEI~TOVJ~ ~S. 6as. fys. A 10 (1960), 420

~ I / IHAMHttECHHITI YMHOH~I/ITEJII) 3 J I E t ~ T P O H O B

On~c~iBaeTcu I~OHeTpyI~I~H~I ~naM~qee~coro y~nom~Te~ o~Ie~CTpO~OB ~ pe3ya~TaT~ ~ M e p e ~ OCHOB~X xapa~cTep~cT~. ~ o n o a ~ e ~ npe~cTaB~eH~ia o MexaH~a~e npo- Kecc0B B yMHO~gwe~e ~ np~Be;~ena oaeH~a He~oTop~x ero eBofieTB gO epaBHenmo e yMHO- ~I/ITeJI~MH CTaTHHecI~HMI/I.

DYNAMIC ELECTRON MULTIPLIER

A description is given of the construction of a dynamic electron multiplier and the results of measuring its basis characteristics. Conceptions as to the mechanism of pro- cesses in the multiplier are supplemented and an evaluation made of some of its properties in comparison with static multipliers.

O. S~xATo~ov, M. J E D L I 6 ~ Cs. 5as. fys. A 10 (1960), 425

MH Ol'OII~E J I 0 q H BIY4 q ) O T O H A T O ~

CTaTB~I nocBgIt~aeTcg npHr0ToB~eaHIO H HeKoTOp~M CBO~CTBaM 3~)~eKTI~BHOrO MHoro- me~oq~oro (~0TOEaWogia [Cs]Na2KSb. Hp~Be~e~I oIn~iwHsie ~aRnbIe ;~au p a a ~ H b i x enoeo- 6oB aRTIIBaI~HH CTiO~I: MeTO~OM O2[HoBpeIvienttoro, nocTene~oro ~ I~OM6HttHpOBaHIIOFO ~ana- pHBaH~ ~IeaoqH~X Mewa~oB Ha cyp~M~ym no~ao~ny.

B~I~ noay~en~ ~OTOEaWO~hI C ~Terpam,~ofi ~yBe~BHTe~I~HOeT~,~O ~0 200 #A/Lm np~ ~eeT~ofi TeM~epawype BO~paMoBOfi ~aMn~ ~ a ~ a a ~ B a ~ 2850~ Cne~wpaa~H~m xa- p a n T e p ~ e T ~ o6Hapym~Ba~ow ~yBCTBI~Te~SHOCT~ np~Mep~o 40% MaI~C~My~a BS~a~ ; ~ H ~ B0anH, paBnofi 600 m~. B e a ~ H a ~OTO~e~p~ee~ofi p a S o ~ B~xo~a no~w~ COB- na~aew c ~II~mIOBOJntOBOfi r p a ~ e ~ ~1,55 eV. rio c p a n ~ e ~ o e Sb-Cs (~OTOEaTO~( Sb-Na- K-Cs o6~a;~aeT OTHOCHTeJIBtIO MaxlBIM nor~o~eH~eM ~ ~pac~ofi qaCTg eneETpa.

M U L T I A L K A L I N E P H O T O C A T H O D E

The paper deals with the preparation and some of the properties of an effective mu l t i - alkaline photocathode (Cs)Na~KSb. Experience with different methods of act ivating the layer is given: with simultaneous aud successive methods and by the combined vacuum depositing of alkalis on an ant imony base.

Photocathodes were obtained having an integral sensitivity up to 200/~A/Lm at a colour temperature of the tungsten bulb of 2850~ The spectral characteristics are distinguished by a sensitivity of about 40% of the maximum in the neighbourhood of a wave-length of 600 m#. The value of the photo-electric work function is according to the long-wave l imit ~1.55 eV. Compared with the Sb-Cs photocathode, Sb-Na-K-Cs: has relatively small absorption in the red region of the spectrum.

E. ToMxov i Cs. 6as. fys. A 10 (1960), 430

I I P H M O E I I P E B P A m E H H E TEIIJIOBOITI 3 H E P F H H B D J I E H T P H t I E C H V I O 1-IPH H O M O I ~ H T E P M O 3 M H C C H H

D I R E C T T R A N S F O R M A T I O N O F T H E R M A L E N E R G Y I N T O E L E C T R I C E N E R G Y B Y M E A N S OF T H E R M O E M I S S I O N

A. VYSLOU~IL Cs. 6as. fys. A 10 (1960), 430

I/IMHPE FH H P O B A H H BI~I N A T O ~

I M P R E G N A T E D C A T H O D E

V. ZIKEw Cs. 6as. fys. A 10 (1960), 43 i

C B O I d C T B A H A T O ~ O B H ]IIVM 3 J I E H T P O H H B I X JIAMII

T H E P R O P E R T I E S O F A C A T H O D E A N D T H E N O I S E OF V A L V E S

298 Hex. ~ 3 . ~K. B 11 (1961).

P. SCH_WEI1)E~ ~S: 5as. fys. A 10 (1960), 431

I 4 3 M E H E H H E M E X A H H q E C t ~ H X CBO~ICTB T O P H P O B A H H O F O BOJIL(I)PAMA I I O C ~ E H A P B O H A I ~ H H

T H E C H A N G E I N M E C H A N I C A L P R O P E R T I E S OF T H O R I A T E D T U N G S T E N A F T E R C A R B O N I S I N G

A . V . ~ o (is. 5as. fys. A 10 (1960), 432

Y T O M J I H E M O C T B C E P E E P H H O - H E 3 H E B L I X q ) O T O H A T O ~ O B I t O ~ ~EIYICTBHEM ] H H ( I ) P A H P A C H O F O 0BJIY~IEHI; I I t

T H E F A T I G U E OF S I L V E R C A E S I U M P H O T O C A T I t O D E S T H R O U G H I N F R A - R E D R A D I A T I O N

M. $]EDLICKA CS. 5as. fys. A 10 (1960), 432

Y T O M ~ H E M O C T B ( D O T O H A T O ~ O B

T H E F A T I G U E OF P H O T O C A T H O D E S

L. STOKSA Cs. 5as. fys. A 10 (1960), 433

I IOPOIHHOBBIE (DOTOIIPOBO ~ I H m E E CJIOI/I

P O W D E R P H O T O C O N D U C T I V E L A Y E R S

J. PI~cHLiK, B. GAD~UK Cs. 5as. fys. A 10 (1960), 433

B P O H 3 B I C BOJILIHO~I B T O P H q H O ~ I OMHCCHEI~ ~J IH C u

B R O N Z E W I T H L A R G E S E C O N D A R Y E M I S S I O N FOR SUPERORTHICON

I. BE~iNEK Cs. 5as. fys. A 10 (1960), 433

PA3BMTI4E (I)0TOYMHOH~HTEJIEITI q E X O C J I O B A H I ~ O F O I I P O H 3 B O ~ C T B A

T H E D E V E L O P M E N T OF P H O T O M U L T I P L I E R S OF C Z E C H O S L O V A K M A N U F A C T U R E

B. HOL~, R. LAD~A~r Cs. 5as. fys. A 10 (1960), 434

I I P O B J I E M A q)OHA Y H B A H T H H O H A

T H E P R O B L E M OF B A C K G R O U N D I N A Q U A N T I C O N

L. PA~rT, M. NEU~II, Cs. 5as. fys. A 10 (1960), 435

I~ I I P O I I E C C u O T E A U M B A H H H B ~H( I ) (1 )u HACOCAX

B paSoTe onncHnaeTca MeTO~ ~ccJ]e~o~aHna npo~ecco~, npoTeEaIomHx B ~ y S ~ O H - I~oM Hacoce, ocHoBaHn~ Ha n a x o ~ e H ~ 3aB~cnMOCTH rpa~n~noro 7(aB~eH~a nacoca OT ToRa ra3a, enyme~oro ~ pa3l~ie ~ecTa paSo~ero 06%6Ma. IIp~e~e~rz ~3~epeH~a ~TOfi 3aBI~Cl~M0CTtI, npoBe~eHH~ie ~a ~Ecnep~MenTa~oM Tp~xcwyne~qa~oM Mac~HOM ~n~/~y- 31~IOttHOM ~acoce.

Ha oc~oBe pe3y~Ta~o~ II3MepeHH~ npo~3ne~H ~a~ecTnennr~fi pa35op npo~ecco~, npo- �9 e~amm~x ~ paSo~e~ 06%~Me nep~oro conga ~acoca. Ba pa~5opa e~TeRaeT, ~TO Teop~r ~ 5 y 3 ~ o ~ H ~ x HacocoB C ~ o T e ~ a ~ I O m e ~ o no~w~ep~aeTc~.

C z e c h . ~. P h y s . B 11 (1991) 299

ON THE PUMPING PROCESS IN DIFFUSION PUMPS

A description is given of a me,hod for studying processes taking place in a diffusion pump, based on the determination of the dependence of the critical pressure of the pump on the current of gas admitted into different places in the working space. The paper gives the measurements of this dependence carried out on a test three-degree oil diffusion pump. A qualitative analysis of the processes taking place in the working space of the first jet of the pump is carried out on the basis of the results of measurement. It follows f r o m t h e ana lys i s t h a t t he t h e o r y of a d i f fus ion p u m p a f t e r S k o b e l k i n a n d J u w is jus t i f ied .

L . EOK:EI~'rOVA, L. KRY~KA, L. PAT~, P. Sc~f iaE~ (]s. 6as. fys. A 10 (1960), 443

O J I E M E H T b I ~ J I H O T H A ~ I H B A H H H C F I C H A P g t O I I ~ F I M C ~ I I T I 4 T A H O M

OIIHCaB~,I HeliOTOpRIe MO~I~I~Hlfar~I,I~I MaablX CTeHJI,qHHBIX TIITaHOBBIX 3JIeMeHTOB, npe~- HasHageHH~X /IJ~g OTI{aHHBaEIIK CHCTeM, 3aEpBITMX yaBTpaB~COHOBaKyygH~IMg BeHTHJIgMII, H~H CHCTeM, .OTllagntfyatx llpli OgetiB BbICOI<OM BaHyyMe.

~ a ~ ncnapeHna T~:Ta~ia 5s~aa ~cno~ssosaHa, ~o-ncpBs~X, 5o~6ap~zpoB~a 6S~CTp~H aaeR- TpoHaMH, BO-~TOp~X, I~paTKospeMeHi~oe COlipgI~OCHOBeH[ie TgTano~oro ~O~OKHa c pac~a-- 2IeHnof~ BOSlI~)paMOBOI~ ClI~Ipa~IBIO ]I, naI~oneIL np~iMoe ~cnapeH~e THTaHOBOrO BO~OI~Ha, ~aTaHyToro Ha S O ~ p a M o s o f i cnHpaam Hp~e~eH~i i ~ p ~ I e na~eH~a ; ~ a ~ a e n ~ ~ 06- cya~atowca oT~eal~n~Ie MO~i~m~almi~.

PUMPING ELEMENTS WITH EVAPORATION OF TITANIUM

Some modifications of small glass titanium elements intended for pumping a system closed by ultra-high-vacuum valves or systems sealed in the region of a very high vacuum are described. The ~itanium was evaporated either by bombarding with fast electrons, o r b y s h o r t - d u r a t i o n c o n t a c t of a t i t a n i u m f ib re w i t h a g lowing t u n g s t e n sp i ra l a n d f in- a l l y b y d i rec t e v a p o r a t i o n of t h e t i t a n i u m f ibre s u s p e n d e d on a t u n g s t e n spiral . The cu rves of t h e pressure decrease are g i v e n a n d t h e d i f f e ren t mod i f i ca t ions are e v a l u a t e d .

~. VEIS (~s. 6as. fys. A 10 (1960), 448

H 3 M E P E H I / I E ~ A B J I E H I / I H P A 3 ~ q I / I q H b I X F A 3 0 B M A H O M E T P O M I I H P A H I / I C I I O J I u 3 J I E M E H T O M

B pa6owe npehaa raeTca cnoco6 pacs~wa rpa~yspoBo~H~IX ~p~B~IX ~mHoMeTpa H s p a ~ n c n o a y n p o s o ~ s ~ o B ~ M DJleMelITOM XJIfI pasJIn~IgblX ra ses , I~or~a ~IsSecTHa rpa~ynposo~Haa ~ p ~ B a g ~ g OXHOrO ra3a. 3rO ocy~ecTmzaewcg c~e~y~omm~ oSpa.~o~c B~eCTO ~ni~poaMnep- ~eTpa s ~garoHa~b ~OCTS~a u ss :~osaeTc~ SO~STMeTp C OgeHb 6oz/bmgM S~yT- p e H s ~ c o n p o r ~ n : ~ e ~ e ~ , ~wo ~aeT ~OSMOmnOCTb Bb~paagTb ~aB~e~ge ,{epe3 no~<asann~ ~O~bTMeTpa. Ha oc~ose sTore OTHomeHHa 6 b ~ ~poBe~e~ pac~e~ rpa~y~pososH~X ~psss~x ~ng MHepTHLIX Pa3OB. PacgeT rpaj~y~pososH~IX I~pnBblX ~OmgO pacmgpgTs C J~ocTaTOtI - noI~ TOCINOCTBI0 I~[ Ha o6nacTb ~aB~ie~s~, r~e cpenHaa ~ H a cBoSo~Horo npo6era ~o~IcKy;I r a sa ~ie o~Iem~ se~II~I~a no cpam~enI~tO c pasMepa~I n o ~ y l i p o ~ o ~ m ~ o s o r o a~ieMeHwa.

MEASUREMENT OF PRESSURES OF DIFFERENT GASES BY PIRANI MANOMETER WITH SEMI-CONDUCTING ELEMENTS

A method is proposed for calculating the calibration curves of a Pirani manometer with a semi-conducting element for different gases, if the calibration curve for one gas is known. This is possible if a voltmeter with a very large internal resistance is used instead of a mieroammeter in a diagonal Wheatstone bridge, which enables the pressure d e p e n d e n c e o n t h e d a t a of t h e v o l t m e t e r to b e expressed. T h e c a l i b r a t i o n c u r v e s were ca l cu l a t ed for i n e r t gases on t h e bas is of t h i s equa t i on . The ca l cu la t ion of c a l i b r a t i o n cu rves c a n be e x t e n d e d w i t h su f f i c ien t a ccu racy to p ressure regions whe re t h e m e a n free p a t h of t h e molecules of t h e gas is n o t v e r y large c o m p a r e d w i t h t h e dimensio-~s of t h e s e m i - c o n d u c t i n g e l emen t .

3 0 0 ~ex. , ~ 3 . ~4. B 11 (1961)

P. Sc~zOnE~ Cs. 5as. fys. A 10 (1960), 456:

q u B C T B I/I T E / I t) H bI l~i METO]~ I IP~IMOFO ] 4 3 M E P E H H ~ t ]~ABJIEHI4H H A C L I I H E H H B I X I I A P O B

B pa6owe oimci~gaewcg MeTo~( !~ ROHCWpficgHa npH6opa ;~aa npaMoro s3Mepe~sa Tem]o- Boil 3aBHC~IMOCT~ ~aBaeI~na HacumeH~Hx napoB paaH~ix Ben~eCWB, KOTOpUe ~eo5xo~MO 14MeTb B B~I;~y B BanyyMHOfi WeXH!~IHe.

S E I ~ S I T I V E M E T H O D F O R D I R E C T M E A S U R E M E N T O F S A T U R A T E D V A P O U R P R E S S U R E

The paper describes a method and the design of an instrument for directly mea- suring the temperature dependence of the saturated vapour pressure of the different materials which come into consideration for use in vacuum technics.

M. JANAT]~A, B. U~GO~IK ~S. 6as. fys. A 10 (1960), 461

A H A J I I 4 3 O C T A T O H H b I X F A 3 0 B B BAI~YYMHOI~ C H C T E M E 0 M E F A T P O H O M

On~casa ~OHCTpyR~sa n CB0fiCTBa npocToro oMerawpoHa. IIpoBe~eH asaas30CTaTOHItI~tX: raaoB n BaI~yyMH0fi CiICWeMe B 05JIaCTH 3aBJieHnfi 10 -s mm pw. CT.--10 -7 inm pw. CT.

A N A L Y S I S O F R E S I D U A L G A S E S I N V A C U U M S Y S T E M B Y OME G A T R O N

A description is given of the design and properties of a simple omegatron. An analysis: was made of the residual gases in the vacuum system in a pressure range of 1 0 - e mm H g to 10 -~ mm Hg.

J . I~.U~L~r Cs. 5as. fys. A 10 (1960), 465~

H C H O J I b 3 O B A H I / I E P T Y T H b I X ~H(I)cD~3I/IOHHI~IX H A C O C O B ,~,7I~ O T I Z A q H B A H H B Y . J I L T P A B b l C O H O B A H ~ Y M H b l X C H C T E M

T H E U S E O F M E R C U R Y D I F F U S I O N P U M P S F O R P U M P I N G U L T R A - H I G H - V A C U U M S Y S T E M S

A. B~I]~A Cs. 5as. fys. A 10 (1960), 465

HOHI/I3AI~HOHHI~II~I 3 B A I I O P A I ~ I / I O H H b I M HACOC C I~AJIIbI~I/IEM

IONIZATION EVAPORATION PUMP WITH CALCIUM

L. P i ~ : Cs. 6as. fys. A 10 (1960), 465, H E H O T O P t ~ I E 3 A M E ~ I A H H H H H PO I~E CCA M O T H A q I 4 B A H H ~ I

B P A 3 P H ~ ( H O M H A C O C E

S O M E R E M A R K S ON T H E P U M P I N G P R O C E S S E S I N A D I S C H A R G E P U M P

S. VEIS Cs. 6as. fys. A 10 (1960), 466,

I I O B t ) I ] / I E H I J E t l V B C T B ] 4 T E S I t ) H O C T H M A H O M E T P A C TEPMOIIAPOI~I

I N C R E A S E I N S E N S I T I V I T Y OF T H E R M O - C O U P L E M A N O M E T E I ~

J. NEV~AI~ Cs. 6as. fys. A 10 (1960), 466,

B J I F I g H I d E B A H u 1 6 5 CHCTEMI~I HA q P V B C T B H T E J I L H O C T B F E J / H E B O F O H C H A T E J I H T E q E ~

T H E I N F L U E N C E OF A V A C U U M S Y S T E M ON T H E S E N S I T I V I T Y OF A H E L I U M L E A K A G E F I N D E R

Czech. J. P hys . B 11 (1961) 3 0 1

A. BLiHA Cs. 5as. fys. A 10 (1960), 467

H C H O J I b 3 O B A H H E B A H V Y M E T P O B ~ J I i t H A X O H ~ E H H g TEHEITI B I I P O M b I I I I J I E H H b l X V C T A H O B H A X

T H E U S E O F V A C U O M E T E R S F O R F I N D I N G L E A K A G E S I N I N D U S T R I A L E Q U I P M E N T

F. Pf~mYL Cs. 6as. fys. A 10 (1960), 467

t~ B O I I P O C u TEXHO~TIOFI/IH !/I H C H O J I t ) 3 O B A H H g j~I IOMHHECL~EHTHt)IX CJIOEB, H A H E C E H H t ~ I X H C H A P E H H E M

B B A H Y Y M E

A C O N T R I B U T I O N TO T H E T E C H N O L O G Y A N D U S E O F V A C U U M D E P O S I T E D L U M I N E S C E N T L A Y E R S

E. E~,-~SS Cs. 5as. fys. A 10 (1960), 468

3 J I E t { T P H ~ I E C I ~ O E C B A P H B A H H E CTEI~J IA

E L E C T R I C W E L D I N G O F G L A S S

E. ~IZKA ~S. 6as. fys. A 10 (1960), 468

O B P A 3 O B A H H E T O H H H X C~rIOEB B P E 3 u H E I ~ T P A J I H 3 A L ~ H H H O H O B

T H E P R O D U C T I O N O F T H I N L A Y E R S B Y N E U T R A L I Z I N G I O N S

K. M A ~ o X Cs. 5as. fys. A 10 (1960), 468

H A H E C E H H E 3 M H T T ! / I P u B E I K E C T B HA t~ATO~IoI B 3 J I E t ~ T P I / I g E C I ~ O M I IOJIE

T H E D E P O S I T I O N O F E M I S S I O t ~ S U B S T A N C E S ON C A T H O D E S II~ A N E L E C T R O S T A T I C F I E L D

R. HAR~A~ Cs. 5as. fys. A 10 (1960), 469

O H 3 H q E C I ~ H E I/I X I / I M I I K E C I ~ H E H P O B J I E M L I C O E ~ H H E H H g REPAMI/ I I~H C M E T A J I J I A M I I B D J I E H T P O H H I ~ I X $ I A M I I A X

PIIYSICO-CI-IEMICAL PROBLEMS OF JOINING CERAMIC AND METAL FOR VALVES

J. RfT~I~KA Cs. 5as. fys. A 10 (1960), 469

HOBLI~I CHOCOB C O E ~ H H E H H g M E T A J I J I O B C HEPAMHI~O17I,] V~OBHbI]TI ~ J I H H O H C T P Y H I ~ H ] ~ B t ) I C O H O T E M I I E P A T Y P H L I X H 3 ~ E H T P H q E C I ~ H 3 A F P : V i t ~ E H H I ~ I X 3 J I E I ~ T P O H H b I X COHEJI

A N E W M E T I - I O D O F J O I N I I ~ T G M E T A L A N D CEtCAMIC, S U I T A B L E F O R T I I E C O N S T R U C T I O N O F H I G H T I l E R M A L L Y

AND ELECTRICALLY LOADED ELECTRON JETS

L. PIT~ r, L. PLICHTA CS. 5as. fys. A 10 (1960), 470

V C T A H O B t ~ A ~JI]=I B B E ~ E H I / I H O I I P E ~ E ~ E H H O F O t ~ 0 J I H q E C T B A PTTVTI/I B BAt~V~VMHu C H C T E M u

E Q U I P M E N T F O R I N T R O D U C I N G A D E F I N I T E A M O U N T O F M E R C U R Y I N T O A V A C U U M S Y S T E M

3 0 2 H e x . r ~K. B 11 (1961)

L. ~IPEK CS. 6as. fys. A 10 (1960), 471

M E T O ~ H3MEPEHHITI 0 T H O C H T E J I B H O F O F P A ~ H E H T A [ lOJ1g

O1]RCh~BaeTcg Hp0CTOfi yHgBepca~IhH~[fi He~o~ TOHHOF0 H3MepeHHg OTHOCgTeJIBH0ro rpa- ~HeHTa rIo~Ie~ Bpa~i~aTe~I~HO-CHMMeTpH~H~X H II~OCI~HX. ~HHBepca~I~HOCTB MeTO~a eCHO- BBIBaCTCg Ha BO3MOH{HOCTll npHMeHeH~g ero up~H~na ~ no,eft gOCTO~HH~X ~ nepe- MeIIHBIX, 3~eRTpH~ecEgx H MaFHIITHBIX. I~poMe TOPO, cy~ecTByeT BO3MOH~HOCTI, Ha ere OCHOBe CKOHCTOVHpOBaTB IIpH~Op ~JIH HerIocpe~ICTBeHHOFO II3MepeIIHg OTHOCIITeJIBIIOF0 rpa- ~IHeHTa llOJIg. MeTO~ 5 ~ ycnem~o Hp~MeHeH ~ H3McpeH]~I I~OO(~)HI~HeHTa ~epeMeHHoro Mars~w~oro near 6eTawpoHa.

M E T H O D OF M E A S U R I N G R E L A T I V E F I E L D G R A D I E N T

A simple universal method is described for exact measurement of the relative gradient of rotationally symmetrical and plane fields. The universality of the method consists in the possibility of applying its principle to both direct and alternating fields, electric and magnetic. Moreover, it can be used as a basis for designing an instrument for direct measurement of the relative field gradient. The method was successfully applied in mea- suring the index of the alternating magnetic field of a betatron.

M. S~ICHA Cs. 6as. fys. A 10 (1960), 477

H 3 M E P E H H E P A C H P E ~ E J I E H H } t H J [ 0 T H O C T H T O H A [B 3 J I E H T P H q E C I ~ H X H Y g H A X

OIIgCaH MeWO~, ~aIOIIIHH BO3MOH~ttOCTt, ~O~eCTBeH~o H3MepHTB pacupe~eaeH~e n~IOT- HOCTH TOI~a B 3~'IeRwpottHBIX n y ~ a x . Mewo~ HClIO~IB3yew ~a~parMy c Ma~IBIM OTBepCTHeM, ~eTopog OCt[rL]~gpyew nepneH~H~yaup~o i~ ~anpaB:~eHmo n y ~ a . To~, npoxo~m~fi ~epe3 OTBepcTHe, npo~op~o~aae~ IIJIOTHOCTI~ TOI~a, B cayuae, eclat OTBepCT~C Ma~o no cpaB- HeH~O C pa3MepaM~r ny~i~a. Pacnpe~eaeu~e II~IOTHOCTg ToKa ~3oSpamaeTcu na 3~p~e o c a ~ o r p a ~ ) a .

M E A S U R E M E N T OF D I S T R I B U T I O N O F C U R R E N T D E N S I T Y I N E L E C T R O N B E A M S

A method is described which enables the quanti tat ive moasuremen~ of the distribution of current density in electron beams. The method uses a diaphragm with a small opening, oscillating across the beam. The current passing through the opening is proportional to the current density, if the opening is small compared with the dimensions of the beam. The distribution of the current densi ty is shown on the screen of the oscillograph.

5. VEJVODOV• Cs. 5as. fys. A 10 (1960), 480

B Y I H H H H E H E P E X 0 ~ H O ! ~ O B J I A C T H M A F H H T H O F O I IOJfH :!HA TYPBYJIEHTHI)IE 3JIEI~TPH~IECHI/IE IIVtIHH

HO~6'IHTaHI)I Tpae~TopHH 3JIeI~TpOIIOB B rlepexo~Iiiofi 06~aCTH B IlepBoM I~ ]3TOpOM IIpg6,~H- meH~. rloi~a3aiio, HTO npK~IIHa wyp6yaeHaH~ ny~Ka ~e ~axo~TCg B nepexo~Hofi 06~aCT~, O~HaHO, IIOCJIeTIHHH H~eeT BJIHHIIHe Ha pacnpe~e.~eH~e pa~a~H~iX cocraBaglo~Hx cHopocTH.

THE INFLUENCE OF THE TRANSITION REGION OF A MAGNETIC

FIELD ON TURBULENT ELECTRON BEAMS

The trajectories of electrons in the transition region are derived in the first and second approximation. It is showa that the turbulence of the beam does not originate in the transition region but that the latter influences the distribution of the radial components of the velocity.

J . T~Icn~_~ Cs. 5as. fys. A 10 (1960), 484

H E I ~ O T O P M E B O H P O C M r MACTicII~ B VCI~OPHTE~TIE

S O M E Q U E S T I O N S OF T H E F O C U S I N G OF P A R T I C L E S I N A N A C C E L E R A T O R

Czech. J. Phys. B I1 (1961) 303

I ( . RY'rlNA Cs. 5as. fys. A 10 (1960), 484

qEXOCJIOBAHI~HI~4 B E T A T P O H HA 3 H E P F H I O 15MeV I4 EFO X A P ' A I ~ T E P H C T H I ~ H

C Z E C I - t O S L O V A K 15MeV B E T A T R O N A N D I T S C H A R A C T E R I S T I C S

M. SEIDL CS. 5as. fys. A 10 (1960), 485

3 A X B A T 3 J I E H T P O H O B , H H H ~ E H T H P O B A H H H X B B E T A T P O H

TI-IE T R A P P I N G O F E L E C T R O N S I N J E C T E D I N T O A B E T A T R O N

R. KIAMA Cs. 5as. fys. A 10 (1960), 485

0 3 A T Y X A H H H CI)A3OBbIX t~OJIEBAHHIYI B I ~ P Y F O B O M u C O B O B m E H H B I M I I O [ I E M

ON T H E D A M P I N G O F P H A S E O S C I L L A T I O N S I N A C I R C U L A R A C C E L E R A T O R W I T H A G E N E R A L F I E L D

F. ROHLI~EX CS. 5as. fys. A 10 (1960), 485

H 3 M E P E H H E PA3YIOH~EHI4H I I S I O T H O C T H T O H A B D S I E H T P O H H I ~ I X I Iu H A X

MEASUREMENT OF DISTRIBUTION OF CURREN~r DENSITY OF ELECTRON BEAMS

V. JAI~Ew Cs. 5as. fys. A 10 (1960), 486

P A 3 J I O H ~ E H H E I I S O T H O C T H T O H A B O J I E H T P O H H B I X I I Y q t ~ A X

D I S T I ~ I B U T I O N O F C U R R E N T D E N S I T Y I N E L E C T R O N B E A M S

T. LoM Cs. 5as. fys. A 10 (1960), 486

0 B O 3 M O H ~ H O C T H CHH~I~EHHH T E P M H q E C H O F 0 I / IYMA B 3 5 I E I ~ T P O H H O M HY. q H E

Olx T THE POSSIBILITY OF DECREASING TI-IERMIC NOISE IN AN ELECTRON BEAM

R. KOZlA]~ CS. 5as. fys. A 10 (1960), 486

3 ~ 3 E H T P O H H A H O I I T H H A ~ J I H O B P A 3 O B A H H H T J I E I O I ~ E F O 3 J I E t ~ T P O H H O F O I I Y q H A u H A P I ~ H H O T P O H A 30SE53

E L E C T R O N O P T I C S I N T H E P R O D U C T I O N O F A H O L L O W E L E C T R O N B E A M F O R A 30SE53 C A R C I N O T R O N

E. PODSX~S~:~: ~S. 5as. fys. A 10 (1960), 487

BAI~ YYM H BI IYI A H A J I H 3 A T O P

V A C U U M A N A L Y Z E R

V. PEOriA Cs. 5as. fys. A 10 (1960), 487

T E X H H H A H H O H C T P Y I ~ I ~ H H M A C C - C I I E H T P O M E T P A , , V Y ~ V E T HS 200-2"

TI-IE T E C H N I Q U E A N D D E S I G N O F A M A S S S P E C T R O M E T E R " V I S V E T I-IS 200-2"

3 0 4 t I ex . cI~43. ~4. B 11 (1961)

S. VozwA~EK Cs. 5as. fys. A 10 (1960), 488

~IIdO~[HbIIYl ~ E T E I ~ T O P C ( I ) I 4 J I b T P O M

PaeeMoTpeH a/lace ~eTeI~TOpOB e nony t~po~ox~r~on~ X170Xo~ 17 IIp17coe~n17eI~r~M ~ IIeMy (~/ibTpOM. Peme~re npo~exe~o e TO~n17 3pe1717a Teopl117 17e~17efinh~x ~ri~epeHima:Ib~r~x ypas17e17Hfi MeTOXOM Ma/IoFo napaMeTpa. PaaoSpana npo6~eMa annponcI~MaI~1717 xapaHTe- p~CT~1717 iip~Me~e17170ro no~yiipoBox17nIfosoro X~oxa, IIp17Bexe17b~ n~pameH~IS, oiipe~e~sIO- ]J~17e eTaR~oHapHoe eoeToIiHge TOEa Ha BBIXO~e xeTeifTopa, ~ Nafi~IeH~I ye/ iOB~ 8eeI+IMIITO- THHee~o~ CTa617/IBHOCTs XaH170FO eTaliHoHap170rO COCTOHHHH. Bbieniee IIp176~lemeiise ~ng nepsox17~ec~oro pemeHs~ ~epeii~Ha/iBHoro ypasHeHg~ oiipeJ~e~geT ocwammyDcg IIepe- MeHHyIO eocTaB:Ia~on~yio ToHa 17a BHxoXe ~leTeEwopa. Ha OCHoBe 3TOrO 06eym~eH sonpoe 0 ~.~bTpyIomefi e170CO6HOCT17 ~H~bTpa 3a ~eTeETopoM. Pe3y~IbTaTbl Bblq17e~'leH141~ 170~rOTO- B~IeHBI XJIH Ilpal~TH~Iecgoro IIpHMeHeHHH.

D I O D E D E T E C T O R W I T t t F I L T E R

A circuit of a detector wi th a semi-conduct ing diode and a fi l ter is solved. The solut ion is carried out f rom the poin t of v iew of the theory of non-l inear differentia] equat ions by the m e t h o d of a small parameter . The problem of the approx imat ion of the character- istics of the semi-conduct ing diode used is analyzed, relat ions are g iven de termining the s t eady s ta te of the ou tpu t current of the detector and condit ions are found for t he a sympto t i c s tab i l i ty of th is s t eady state. Higher approx imat ions for the periodic solut ion of the differential equa t ion determine the residual a l te rna t ing component of the o u t p u t current of the detector . On the basis of this the quest ion of the f i l t ra t ion ab i l i ty of a f i l ter behind the detector is discussed. The results of the calculat ions are adap ted for pract ica ! use.

J . L-IoR~N'A CS. 5as. fys. A 10 (1960), 492

I~ B O I I P O C u J I H H E I Y I H O C T H q ) A 3 0 B O I ~ M O ~ V 3 I t I ~ I 4 F I D J / E t ~ T P O H H O I 3 J I A M I I b I C B E F Y l l ~ E ] 3 BOJIHOIYI

B pa60we On17CbIBaewcg nJI17~IHlle Heox17opo~HOeTII paapbma 17a/i~17efi~OCWb xapa17Tep17cT17- ~17 ~a3OBOfi Mo~yJ~sgg~ ~/ieETpOHSOfi aa~nsI c 6erymefi s o ~ o f i . Ilpe~no/iaraeM~e sarsSs~ t~a xapai~Tep~cT17i~e J~oHazbISaIOWC~ 17OBBI~ MeTOXOM ~aMepe17ss. 3TOT IvleTOJ~ BBIFo~eH lie TO~IBRO rip17 17cnonbso~aH~ oneKTpol-n-iol~I /IaMIIBI R/IS ~a3oBofi MOJ~y~IZlUtltI, ttO tI 17pI~ <)apexeaeH~r B/I171:Ut17i:I ~eox17opox~OCTS np~ pa60Te o,SeETpOH170]] /iaMnr~ B EasecTse npoc- TOrO yc~n~Te/isI ~ lip17 yCTaHOBHe exoxa 17 B~xo~a. MeTox 5b~n 17cnpoSosaH ~aMepes17e.~ 06pasha IIp~ paapaSoTKe O:m~r ~aM~b~ 30 SE 1 s qCCP.

A C O N T R I B U T I O N T O T H E Q U E S T I O N O F T H E P H A S E M O D U L A T I O N L I N E A R I T Y O F A T R A V E L L I N G - W A V E T U B E

A descr ipt ion is g iven of the influence of d iseontmui tes on the phase modu la t i on l inear i ty character is t ic of a t rave l l ing wave tube. The assumed ripples of this character - istic are p roved by a new measur ing method. This me thod is sui table no t only when using phase modula t ion tubes bu t also for de termining the influence of discont inui t ies when such a tube is used as a s imple ampli f ier and for ad jus t ing its input and o u t p u t match ing . The m e t h o d was tes ted by measur ing samples f rom the deve lopment of the 30 Se 1 t u b e i : Czechoslovakia.

V. ZI~A ~s. 5as. fys. A 10 (1960), 499

u O C H O B A H H L I / 7 I H A B I / I E H H I ~ X

B CTaTBe paapaSoTaHa weopng aKT17BHOFO JI17He~HoFo TpSxnomocH~Ka c EOMII~eRcHbIMg napaMeTpaM~, ~CC/Ie~OBaHBI O6/IaCT17 CTa6H/IbHOCT~, 06/IaCT17 nepgoXg'~ecngx Hoo~e6aHgfi H y CTaHOBJ]eHBI OHT17Ma/IB17BIe yczIOBgg X/ig BbIXO)~a MOnI17OCTg, He3aB~eI~Mbm OT oKpy~am- me~ cTpy~TypbL B c~exyrome~ ~aCTg oScy~xaeTcg yc17JI17TeJ~b, aKT~B17bIfi 17e~H~efiH~fi Tp~xHoJHoeHHR 6 IiOM17JIetCcHBIM~ napaMeTpaM17 B p e m ~ e c~a6s~x r a p M o ~ e c K n x Ko/ie- 6asnfi, cs~sa~r~b~x OTp~aTe/ibg0~ 05paT170~ CB/t3BtO. DTOT ycH/inwe~t, XocwgraeT ~CK/IIO- HgTeJIbHOrO BbIxoxa MOI~HOCTtI 17 aMeeT secsMa 6aaronp17aw~bm myMoss~e CBOfiCTBa.

Czech. J. Phys. B 11 (1961) 305

B E A T A M P L I F I E R

A theo ry is e l abora ted of an ac t ive l inear t r i -pole w i th complex pa ramete r s , t he regions of s t ab i l i ty and per iodic osci l la t ions are inves t iga ted a n d the o p t i m u m condi t ions of m a x i m u m o u t p u t yield, i n d e p e n d e n t of t he circuit s t ruc ture , are de t e rmined . The n e x t p a r t discusses a bea t ampli f ier , an ac t ive non- l inear t r i -pole w i t h complex p a r a m e t e r s in t he regime of weak ha rmon ic oscil lat ions, s tabi l ized b y degenera t ive back coupling. This ampl i f ie r achieves an excep t iona l o u t p u t yie ld a n d has ve ry favourab le noise pro- per t ies .

P . C I ~ L ~ C Cs. 6as. fys. A 10 (1960), 511

I / ICTOttHI/II~ C T A B H J I I / I 3 M P O B A H H O I ~ q A C T O T B I ~ I H ~ I / I A I I A 3 O H A

3 , 2 c m C u M O ~ S I H T O P A C 0 ) ~ H I d M B O H O B b I M ~ H A I I A 3 O H O M

S O U R C E O F S T A B I L I Z E D ! F R E Q U E N C Y F O R 3 . 2 c m B A N D U S I N G A M O D U L A T O R W I T H O N E S I D E B A N D

~. ~tU~A (~s. 6as. fys. A 10 (1960), 511

P E F Y J [ H R H H H H T E H C M B H O C T I I M A F H H T H O F O I I 0 2 I H 3 J I E H T P O M A F H H T A C H F H A M O M H ~ E P H O M A F H H T H O F O

P E 3 O H A H C A

C O N T R O L O F M A G N E T I C F I E L D S T R E N G T H O F E L E C T R O M A G N E T B Y S I G N A L O F N U C L E A R M A G N E T I C R E S O N A N C E

Z. MACK Cs. 6as. fys. A 10 (1960), 512

B ~ H H H H E B L I C O H O q A C T O T H O I Y I q A C T H T E J I E B H 3 H O H H O F 0 H A H A S I A H A I I E P E ) ~ A q u H 3 0 B P A H ( E H H ~ I

TI- IE I N F L U E N C E O F T H E H. F. P A R T O F A T E L E V I S I O N C H A N N E L O N T H E I M A G E

L. S z h ~ r o Cs. 5as. fys. A 10 (1960), 512

HE~VII/IHEITIHAH X A P A H T E P H C T H I ~ A H ~ E A / I I ) H O F O t ~ A H A J I A ~JI~I H B E T H O F O T E S E B I / I ~ ( E H I / I H

N O N . L I N E A R C H A R A C T E R I S T I C S O F A N I D E A L C H A N N E L F O R C O L O U R T E L E V I S I O N

V. KU~ZL (~s. 6as. fys. A 10 (1960), 513

3 A H J I I O q H T E J I t ) H O E C J I O B O H A I ~ O H ( I ) E P E H I ~ H H HO 3 J I E I { T P O H H H E

CONCLUDING SPEECII AT CONFERENCE ON ELECTRONICS

CZECHOSLOVAK JOURNAL OF PHYSICS, u lIB (1961).--Puhlished under the auspices of the Czechoslovak Academy of Sciences in the Publishing ttouse of the Czechosl. Acad. Sci., Praha 1-~ov6 M~!sto, Vodi~kova 40 -- dod. pfi 1. -- Address of the :Editor: Institute of Technical Physics, Czechosl. Acad. Sei., Praha 6-St[egovice, Cukrovarnick~ 10 -- dod. pti 69. - - Printed by Knihtisk, n. p., z~vod 5, Praha 8-Libeii, tL Rud4 arm~dy 171 -- clod. pfi 8. - - Orders from abroad should be addressed to: A~TIA, Praha 1-1Vov4 M~sto, Ve SmeSkAeh 30 --

clod. pli 1. Czechoslovakia - - Annual subscription ]~6s 192,--; ~ 19,40; ~ 6,18,7, Single issue :KSs 16,-- (12 issues a year).

by Nakladatelstvi 0eskoslovensk6 akademie v~d 1961.