NIFS-TECH-07

FULL TEXT (PDF, 363 KB)


Author(s):

B.N. Wan, M. Goto and S. Morita

Title:

Analysis of Visisble Spectral Lines in LHD Helium Discharge

Date of publication:

June 1999

Key words:

hydrogen, helium, space distribution profile, Doppler broadening, Doppler shift, double gaussian profile

Abstract:

In this study, visible spectral lines in LHD helium discharges are analyzed and it was found that they could be well fitted with gaussian profile. The results reveal a simple mechanism of helium atom recycling. Ion temperatures were also derived from the fitting. A typical value of the ion temperature obtained was about 6 eV.

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