摘要:

AbstractIt is shown that there exists a discrepancy between the value of the Funkenkonstante for nitrogen calculated according to ROMPEand WEIZELand the value determined by experiments. In a thermal model it is possible to solve this problem by taking into account the role of the ions for the charge transport.The agreement between the experimental and the theoretical value of the Funkenkonstante in the case of argon may be due to another, nonthermal discharge mechanism.

ISSN:0005-8025    

DOI:10.1002/ctpp.19730130302

出版商:WILEY‐VCH Verlag    

年代:1973

数据来源: WILEY

摘要:

AbstractAn experimental investigation of strikingUsand runningUrvoltages in a glow discharge for the combinations cathode material Fe—gas filling Ne with and without Hg has been carried out. It has been shown that Hg addings increase running voltageUrin the whole pressure rangepunder investigation. At the same time striking voltageUsis decreased in the whole investigated range of Paschen curve. The additional effects, which occur in the discharge with Hg addings, have been discussed. A qualitative explanation of the obtained results is adduce

ISSN:0005-8025    

DOI:10.1002/ctpp.19730130303

出版商:WILEY‐VCH Verlag    

年代:1973

数据来源: WILEY

摘要:

AbstractOptical escape factors for bound‐bound and free‐bound radiation have been calculated by solving the equation of radiative transfer with the assumption that the corresponding source functions are space‐independent. The general expression for bound‐bound transitions yields for large optical depths—within a correction factor of order unity—Holstein's asymptotic expressions for the two limiting cases of a Doppler and a dispersion profile. Application to the more general case of a Voigt profile leads to an analytical formula which permits a rapid estimate of the escape factor for any optical depth. Numerical application to the resonance lines of neutral helium‐which are broadened by Stark and Doppler effects—shows that under certain plasma conditions most of the higher members of the resonance series remain optically thin.—The general expression obtained for the escape factor of free‐bound radiation has been applied to the resonance continuum of neutral helium. The numerical results show that the resonance continuum remains optically thin as long as the optical depth in the center of the He resonance line (λ = 584 Å) remains smaller than 104to 105. A similar result is obtaine

ISSN:0005-8025    

DOI:10.1002/ctpp.19730130304

出版商:WILEY‐VCH Verlag    

年代:1973

数据来源: WILEY

摘要:

AbstractThis paper considers the nonlinear interaction between three waves in a warm magnetized twocomponent plasma. A general formalism is developed within a simple macroscopic theory in order to treat waves propagating in arbitrary directions. Some results of previous papers are generalized and discussed.

ISSN:0005-8025    

DOI:10.1002/ctpp.19730130305

出版商:WILEY‐VCH Verlag    

年代:1973

数据来源: WILEY

摘要:

AbstractÜber die Energie‐ und Ladungsträgerbilanzgleichungen des Elektronengases werden das zeitliche Verhalten der Elektronentemperatur und der Ladungsträgerkonzentration für das Übergangsstadium „Entladung — Nachleuchtphase”︁ positiver Säulen in Edelgasentladungen (He, Ne, Ar) bei mittleren Gasdrücken ermittelt. Dabei wird das Problem der zeitlichen Änderung des radialen Profils der Ladungsträgerkonzentration diskutiert. Analytische Ausdrücke für die zeitliche Änderung der Ladungsträgerkonzentration erlauben es, den Einfluß von Diffusions‐ und Rekombinationsprozessen rel

ISSN:0005-8025    

DOI:10.1002/ctpp.19730130306

出版商:WILEY‐VCH Verlag    

年代:1973

数据来源: WILEY

ISSN:0005-8025    

DOI:10.1002/ctpp.19730130301

出版商:WILEY‐VCH Verlag    

年代:1973

数据来源: WILEY