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EUV and VUV Spectra of NeIII-NeX Line Emissions Observed in the Impurity Gas-Puffing Experiments of the Large Helical Device
- Source :
- Plasma and Fusion Research. 16(Special Issue 1):2402006
- Publication Year :
- 2021
- Publisher :
- The Japan Society of Plasma Science and Nuclear Fusion Research, 2021.
-
Abstract
- Extreme ultraviolet (EUV) and vacuum ultraviolet (VUV) wavelength spectra including line emissions released from neon (Ne) ions ranging from low to high charge states observed simultaneously in a single discharge are summarized for contribution to compile a fundamental spectral dataset for the Ne-seeded divertor heat load reduction experiments in Large Helical Device (LHD). NeIX and NeX lines were observed in the EUV wavelength range of 10∼50 Å and NeIII-NeVIII lines were observed in the VUV wavelength range of 400∼1000 Å. The temporal evolutions of the line intensities exhibited different behaviors between the edge emissions of NeIII-NeVIII with the ionization potential, Ei, of 63∼239 eV and the core emission of NeX with Ei of 1362 eV. NeIX with Ei of 1196 eV exhibited a marginal behavior between the edge emission and the core emission.
Details
- Language :
- English
- ISSN :
- 18806821
- Volume :
- 16
- Issue :
- Special Issue 1
- Database :
- OpenAIRE
- Journal :
- Plasma and Fusion Research
- Accession number :
- edsair.doi.dedup.....ea70a8ed9d04c80e1e7a7d5ab984ba8d