Electron temperature and density measurement by Thomson scattering with a high repetition rate laser of 20 kHz on LHD.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
06 Sep 2022
06 Sep 2022
Historique:
received:
14
01
2022
accepted:
29
08
2022
entrez:
6
9
2022
pubmed:
7
9
2022
medline:
7
9
2022
Statut:
epublish
Résumé
Thomson scattering measurements with a high-repetition-rate laser have commenced in the Large Helical Device. As an example of the fast phenomena captured by this diagnostic system, measurements at a 20 kHz repetition-rate in hydrogen pellet-injected plasmas are presented. Signal processing methods for this measurement have been developed and electron temperature profiles with almost 70 spatial points were evaluated at time intervals of 50 [Formula: see text]s. After Raman scattering calibration, electron density profiles were derived. Fast changes in the electron temperature and density profiles within 1 ms were observed.
Identifiants
pubmed: 36068266
doi: 10.1038/s41598-022-19328-9
pii: 10.1038/s41598-022-19328-9
pmc: PMC9448754
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
15112Subventions
Organisme : the Grant-in-Aid for Scientific Research (KAKENHI) of JSPS
ID : 15KK0245
Informations de copyright
© 2022. The Author(s).
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