Thomson Scattering Measurement of Two Electron Temperature Components in Transition to Detached Plasmas

Thomson Scattering Measurement of Two Electron Temperature Components in Transition to Detached Plasmas

We have performed laser Thomson scattering (LTS) measurements during the transition between attached and detached helium plasmas in the linear divertor simulator NAGDIS-II. In the detached plasma, the LTS spectrum shows a discrepancy with a single Gaussian function. The discrepancy is resolved by th...

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Veröffentlicht in:Plasma and Fusion Research 2018/08/10, Vol.13, pp.1201099-1201099
Hauptverfasser: OHSHIMA, Hiroshi, KAJITA, Shin, TANAKA, Hirohiko, OHNO, Noriyasu, Hennie J. VAN DER MEIDEN
Format: Artikel
Sprache:eng
Schlagworte:
detached plasma
electron energy distribution
NAGDIS-II
plasma diagnostic
Thomson scattering
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Zusammenfassung:We have performed laser Thomson scattering (LTS) measurements during the transition between attached and detached helium plasmas in the linear divertor simulator NAGDIS-II. In the detached plasma, the LTS spectrum shows a discrepancy with a single Gaussian function. The discrepancy is resolved by the spectrum fitting with a sum of two Gaussian functions, indicating that the electron energy distribution contains two different temperature components.
ISSN:1880-6821
1880-6821
DOI:10.1585/pfr.13.1201099