1988年1月
EMISSION-SPECTROSCOPY OF A PULSED HELIUM-DISCHARGE PLASMA - TRANSITION FROM THE IONIZING PHASE TO THE RECOMBINING PHASE
PHYSICAL REVIEW A
- ,
- ,
- ,
- 巻
- 37
- 号
- 1
- 開始ページ
- 77
- 終了ページ
- 82
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevA.37.77
- 出版者・発行元
- AMERICAN PHYSICAL SOC
A pulsed helium-discharge plasma was found to have two peaks in the temporal development of its emission line intensities. At these peaks the population densities of the n 3D state (n=3,4,...) were measured. For the first peak, the populations were found to be proportional to n-6, while the second peak showed an exp[-E(n)/kTe] dependence. These distributions are identified with plasma in its ionizing and recombining phases, respectively. On the basis of a collisional-radiative model calculation, the transition from the ionizing phase to the recombining phase is demonstrated. This report is the first experimental demonstration of the n-6 distribution in the ionizing phase for conditions when the conventional criterion would indicate thermal populations. It is suggested that the apparent decrease in the emission line intensities of high-n members of series lines, or ''the transparency window'' that is observed in dense plasmas, may be attributed to this characteristic of ionizing plasma. © 1988 The American Physical Society.
- リンク情報
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- DOI
- https://doi.org/10.1103/PhysRevA.37.77
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:A1988L456400009&DestApp=WOS_CPL
- URL
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0041790748&origin=inward
- ID情報
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- DOI : 10.1103/PhysRevA.37.77
- ISSN : 1050-2947
- SCOPUS ID : 0041790748
- Web of Science ID : WOS:A1988L456400009