摘要:

AbstractThe paper presents results of electrode‐surface temperature measurements in the arc‐discharge attachment zone. The investigations were carried out on tungsten electrodes in helium atmosphere and on zirconium electrodes in nitrogen atmosphere for currents within the range of 100…200 A.The contribution of plasma radiation to pyrometer readings has been determined. The real temperature of the tungsten electrode surface was measured using the polarised radiation at the wavelength λ = 0.65μ m.The energy distribution of arc‐spot radiation has been obtained for the spectral range of 0.4…1.2 μ m. The character of the arc‐spot radiation spectrum has

ISSN:0005-8025    

DOI:10.1002/ctpp.19860260302

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

摘要:

AbstractThe results of experimental investigation of the effect of the state of the cathode surface on its photoemission properties are presented. It is found that the low‐pressure glow discharge treatment of the copper cathode surface in the air results both in a substantial shift of the photoeffect threshold to the long‐wave region of a spectrum and in a change of the quantum photoemission yi

ISSN:0005-8025    

DOI:10.1002/ctpp.19860260303

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

摘要:

AbstractA new type of discharge in pure metal vapors like copper or titanium is described. A stable discharge is produced between a heated cathode and the anode which has a melted spot on its surface due to the electron bombardment. The spectral characteristics prove that the discharge take place in the vapors of the anode material continuously evaporated from the melted spot on the anode. The discharge has a similar behaviour as the low voltage arc.

ISSN:0005-8025    

DOI:10.1002/ctpp.19860260304

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

摘要:

AbstractExperimental results are presented on ionization processes in the vibrationally non‐equilibrium flow of CO preliminarily heated by a shock wave and adiabatically cooled in the supersonic nozzle with a flow Mach number ofM= 3.9.It is shown that for a wide range of flow stagnation temperatures, the value of the recorded semi‐self‐maintained current considerably exceeds the one due to thermal gas ionization in the plenum ch

ISSN:0005-8025    

DOI:10.1002/ctpp.19860260305

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

摘要:

AbstractThe investigation of the output of a He–Cd laser with electrically floating hollow electrodes shows that the discharge plasma instability plays an important role in the generation of the population inversion. The experimental evidence is presented and a qualitative interpretation is given by considering the plasma instability as equivalent to a radio frequency component of the discharge voltag

ISSN:0005-8025    

DOI:10.1002/ctpp.19860260306

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

摘要:

AbstractParametric excitation of the electron‐acoustic wave (EAW) has been analysed using a hydrodynamical model. The plasma has been assumed to consist of multiply charged ions. The ratio (α) of the hotter ion concentration to that of the electrons is a sensitive parameter. The condition for the occurrence of the EAW is well satisfied for the smaller values of α. The growth rate of the instability gets enhanced by increasing α and the charge state of the hotter ions. The values of α can be varied within short range

ISSN:0005-8025    

DOI:10.1002/ctpp.19860260307

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

摘要:

AbstractIn diesem Beitrag wird ein Differenzmeßverfahren angegeben, das eine sehr genaue Bestimmung der Resonanzfrequenz und Resonatorgüte auch von stark belasteten Mikrowellenresonatoren ermöglic

ISSN:0005-8025    

DOI:10.1002/ctpp.19860260308

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

ISSN:0005-8025    

DOI:10.1002/ctpp.19860260309

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

ISSN:0005-8025    

DOI:10.1002/ctpp.19860260310

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY

ISSN:0005-8025    

DOI:10.1002/ctpp.19860260301

出版商:WILEY‐VCH Verlag    

年代:1986

数据来源: WILEY