摘要:

AbstractFür Impulsgaslaserentladungen wird ein Ausdruck hergeleitet, der es gestattet, den zeitlichen Aufbau des lasernden Plasmas in Abhängigkeit von den Parametern des äußeren Kreises und den Eigenschaften der Funkenstrecke zu berech

ISSN:0005-8025    

DOI:10.1002/ctpp.19730130102

出版商:WILEY‐VCH Verlag    

年代:1973

数据来源: WILEY

摘要:

AbstractEvolution from the linear growth to the nonlinearly saturated state of ionization waves (moving striations) is investigated from a viewpoint of an instability which appears in a plasma. The experiments were performed observing backward waves excited below the upper critical currentIcin xenon, argon, and argon‐mercury gases at pressures of the order of Torr. It is found that (1) the behavior of the evolution obeys the Landau amplitude equation; (2) the saturated amplitude does not depend on an initial value, but only on plasma parameters; (3) the linear growth and squared saturation level are proportional to the excess overIc, and when frequency‐controlled, they have a parabolic dependence on the frequency; and (4) nonuniform axial changes in the dc state due to the nonlinear effects appear in a form of enhanced ionization in the plasma where the electron temperature and density are increased. The way of these behavior can be applied to a large number of spatially or temporally unstable mo

ISSN:0005-8025    

DOI:10.1002/ctpp.19730130103

出版商:WILEY‐VCH Verlag    

年代:1973

数据来源: WILEY

ISSN:0005-8025    

DOI:10.1002/ctpp.19730130104

出版商:WILEY‐VCH Verlag    

年代:1973

数据来源: WILEY

ISSN:0005-8025    

DOI:10.1002/ctpp.19730130105

出版商:WILEY‐VCH Verlag    

年代:1973

数据来源: WILEY

摘要:

AbstractIn the experiences carried out on the capacitively excited high‐frequency helium discharges at pressures of 10−3−10−2Torr, a spectral line intensities redistribution in helium spectrum in function of applied steady magnetic field magnitude has been observed. The magnetic field application modifies also the plasma dispersive properties, which are reflected in the variable relative weight of the h.f. field harmonics. The experiences evidenced an electron temperature dependence on the relative h.f. harmonics intensities, confirming the previous researche conclusion concerning the electron temperature increase with the electric field fr

ISSN:0005-8025    

DOI:10.1002/ctpp.19730130106

出版商:WILEY‐VCH Verlag    

年代:1973

数据来源: WILEY

ISSN:0005-8025    

DOI:10.1002/ctpp.19730130101

出版商:WILEY‐VCH Verlag    

年代:1973

数据来源: WILEY