Electron Temperature Relaxation in Afterglow Plasmas: Diffusion Cooling

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F94%3A00003748" target="_blank" >RIV/00216224:14310/94:00003748 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Electron Temperature Relaxation in Afterglow Plasmas: Diffusion Cooling

Original language description

We have carried out a thorough theoretical analysis of the cooling and heating processes of the electron gas in Ne, Ar and Kr afterglow plasmas. Thus the rate of relaxation of the electron temperature, T(e), is seen to be in good agreement with the experimental measurements when spatial gradients of T(e) in the early afterglow and heating of the electron gas by superelastic collisions between the electrons and metastable atoms are accounted for. Al low pressures of the rare gases, p(g), the phenomenon of diffusion cooling occurs in which T(e) relaxes to an equilibrium temperature, T(ee), which is less than the gas temperature, T(g). This reduction in T(ee) below T(g) is mirrored in a reduction in the ambipolar diffusion coefficient, D(a), for the raregas atomic ions and electrons. Thus the D(a) can be calculated as a function of p(g) using the values of T(ee), and when this is done, properly accounting for the heating by metastable atoms, the calculated and experimental values of D(a)

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BL - Plasma physics and discharge through gases

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

1994

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Contributions to Plasma Physics

ISSN

0005-8025

e-ISSN

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Volume of the periodical

34

Issue of the periodical within the volume

1

Country of publishing house

DE - GERMANY

Number of pages

10

Pages from-to

69

UT code for WoS article

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EID of the result in the Scopus database

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