摘要:

AbstractUsing interaction potentials screened with the Debye‐Hückel length, the effects of plasma shielding on energy levels and electrons scattering from neutral and ionized caesium are estimated. Both energy levels and atomic scattering cross‐sections are found to be sensitive to the inclusion of screening. Relating to the scattering by the Cs+ion, a low‐energy resonance nearE= 0.3 Ryd is found which arises from thef‐wave phase shift and reflects the individual behaviour of the scatte

ISSN:0863-1042    

DOI:10.1002/ctpp.2150280202

出版商:WILEY‐VCH Verlag    

年代:1988

数据来源: WILEY

ISSN:0863-1042    

DOI:10.1002/ctpp.2150280203

出版商:WILEY‐VCH Verlag    

年代:1988

数据来源: WILEY

摘要:

AbstractThermodynamic functions of dense plasmas are determined in terms of the single particle self energy. The latter is expressed in terms ofT‐matrices of the scattering theory. Explicit evaluations are carried out for the highly degenerate two component plasm

ISSN:0863-1042    

DOI:10.1002/ctpp.2150280204

出版商:WILEY‐VCH Verlag    

年代:1988

数据来源: WILEY

摘要:

AbstractA short review of some features of the edge plasma in limiter tokamaks is given. The limits of the simple 1‐D SOL model and the relation between the core plasma are discussed. MARFE phenomena and detached plasma are closely connected with the particle and energy balance of the SOL. Their occurrence is based on the relation of plasma parameters of the edge plasma to those of the core. Important problems of plasma wall interactions are the detection of the impurity sources and sinks and the study of the impurity transport and shielding. The non‐uniform character of plasma wall interactions and their dependence on the discharge performance still renders difficult any theoretical forecast of impurity distribution and transport and calls for better diagnost

ISSN:0863-1042    

DOI:10.1002/ctpp.2150280205

出版商:WILEY‐VCH Verlag    

年代:1988

数据来源: WILEY

摘要:

AbstractA simple model is developed to explain the measured temperature dependence of the growth rate of polymerfilms in a C6H6‐Ne‐glow discharge.The negative Arrhenius‐behaviour obtained that means a decreasing growth rate with increasing temperature — is determined by an adsorption‐desorption‐equilibrium of the monomer particles on the surface.From the fitting of the temperature behaviour experimentally obtained by probe measurements some characteristic parameters (activation energy, residence time) were calculated by means o

ISSN:0863-1042    

DOI:10.1002/ctpp.2150280206

出版商:WILEY‐VCH Verlag    

年代:1988

数据来源: WILEY

摘要:

AbstractThe characteristics of the plasma surrounding the substrates in a planar magnetron sputtering system with a graphite target have been investigated by electrostatic probe measurements. The behaviour of the ion densityniand the electron temperatureTe, determining the ion flux that can be extracted by the substrate, with the variation of the basic system parameters, has been studied.

ISSN:0863-1042    

DOI:10.1002/ctpp.2150280207

出版商:WILEY‐VCH Verlag    

年代:1988

数据来源: WILEY

摘要:

AbstractIt is shown that several problems, that are met when constructing a covariant statistical theory, can be circumverted demanding that only the resulting equation for the macroscopic entities are covariant whereas only mathematical meaning is ascribed to concepts as phase space and ensemble density. Accordingly a hierarchy of equations for averaged particle distributions and fields and their correlations is derived.

ISSN:0863-1042    

DOI:10.1002/ctpp.2150280208

出版商:WILEY‐VCH Verlag    

年代:1988

数据来源: WILEY

摘要:

AbstractBy measuring the radiant flux of the resonance lines of mercury, the field strength and the electron energy distribution function the influence of the current on the parameters, especially on the energy balance of the Hg—Ar positive column is investigated, compared with a kinetic model, and interpreted. The decrease in yield of the 254 nm radiation with increasing current is linked to a corresponding increase of the losses due to elastic collisions with the rare gas atoms and is caused by the changes in the electron energy distribution function. Moreover, the influence of gas temperature, Hg‐densities and effective life times is investiga

ISSN:0863-1042    

DOI:10.1002/ctpp.2150280209

出版商:WILEY‐VCH Verlag    

年代:1988

数据来源: WILEY

ISSN:0863-1042    

DOI:10.1002/ctpp.2150280201

出版商:WILEY‐VCH Verlag    

年代:1988

数据来源: WILEY