Understanding atomic hydrogen behaviour in pumped divertor plasmas

K. Uchino, H. Takenaga, T. Kajiwara, T. Okada, K. Muraoka, M. Maeda, H. Iguchi, K. Ida, S. Okamura, H. Yamada, K. Matsuoka

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

In order to set up a data base and diagnostic capability for understanding atomic hydrogen behaviour in pumped divertor plasmas, an experiment and a feasibility study using a novel laser-induced fluorescence (LIF) technique were performed. For the former, combined measurements of LIF tuned to Hα and emission intensities at Hα/Hβ were carried out on the compact helical system (CHS). The comparison of the measured data and a particle simulation code revealed atomic hydrogen behaviour quantitatively, providing a full estimate of toroidally and poloidally asymmetric distributions of hydrogen atoms. In order to supplement the data base around the pumped divertor region, the applicability of an LIF technique which uses two-photon excitation from the ground state was examined, based on the real optical constraints of the envisaged JET pumped divertor. It was concluded that it is feasible and the only remaining problem is not a serious one.

Original languageEnglish
Pages (from-to)210-214
Number of pages5
JournalJournal of Nuclear Materials
Volume196-198
Issue numberC
DOIs
Publication statusPublished - Dec 1 1992

Fingerprint

laser induced fluorescence
Hydrogen
Fluorescence
data bases
Plasmas
Lasers
hydrogen
supplements
Ground state
hydrogen atoms
Photons
Atoms
ground state
photons
estimates
excitation
simulation
Experiments

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

Cite this

Uchino, K., Takenaga, H., Kajiwara, T., Okada, T., Muraoka, K., Maeda, M., ... Matsuoka, K. (1992). Understanding atomic hydrogen behaviour in pumped divertor plasmas. Journal of Nuclear Materials, 196-198(C), 210-214. https://doi.org/10.1016/S0022-3115(06)80033-4

Understanding atomic hydrogen behaviour in pumped divertor plasmas. / Uchino, K.; Takenaga, H.; Kajiwara, T.; Okada, T.; Muraoka, K.; Maeda, M.; Iguchi, H.; Ida, K.; Okamura, S.; Yamada, H.; Matsuoka, K.

In: Journal of Nuclear Materials, Vol. 196-198, No. C, 01.12.1992, p. 210-214.

Research output: Contribution to journalArticle

Uchino, K, Takenaga, H, Kajiwara, T, Okada, T, Muraoka, K, Maeda, M, Iguchi, H, Ida, K, Okamura, S, Yamada, H & Matsuoka, K 1992, 'Understanding atomic hydrogen behaviour in pumped divertor plasmas', Journal of Nuclear Materials, vol. 196-198, no. C, pp. 210-214. https://doi.org/10.1016/S0022-3115(06)80033-4
Uchino, K. ; Takenaga, H. ; Kajiwara, T. ; Okada, T. ; Muraoka, K. ; Maeda, M. ; Iguchi, H. ; Ida, K. ; Okamura, S. ; Yamada, H. ; Matsuoka, K. / Understanding atomic hydrogen behaviour in pumped divertor plasmas. In: Journal of Nuclear Materials. 1992 ; Vol. 196-198, No. C. pp. 210-214.
@article{5c85b3e2fd1049f5b1b0d425870ba65b,
title = "Understanding atomic hydrogen behaviour in pumped divertor plasmas",
abstract = "In order to set up a data base and diagnostic capability for understanding atomic hydrogen behaviour in pumped divertor plasmas, an experiment and a feasibility study using a novel laser-induced fluorescence (LIF) technique were performed. For the former, combined measurements of LIF tuned to Hα and emission intensities at Hα/Hβ were carried out on the compact helical system (CHS). The comparison of the measured data and a particle simulation code revealed atomic hydrogen behaviour quantitatively, providing a full estimate of toroidally and poloidally asymmetric distributions of hydrogen atoms. In order to supplement the data base around the pumped divertor region, the applicability of an LIF technique which uses two-photon excitation from the ground state was examined, based on the real optical constraints of the envisaged JET pumped divertor. It was concluded that it is feasible and the only remaining problem is not a serious one.",
author = "K. Uchino and H. Takenaga and T. Kajiwara and T. Okada and K. Muraoka and M. Maeda and H. Iguchi and K. Ida and S. Okamura and H. Yamada and K. Matsuoka",
year = "1992",
month = "12",
day = "1",
doi = "10.1016/S0022-3115(06)80033-4",
language = "English",
volume = "196-198",
pages = "210--214",
journal = "Journal of Nuclear Materials",
issn = "0022-3115",
publisher = "Elsevier",
number = "C",

}

TY - JOUR

T1 - Understanding atomic hydrogen behaviour in pumped divertor plasmas

AU - Uchino, K.

AU - Takenaga, H.

AU - Kajiwara, T.

AU - Okada, T.

AU - Muraoka, K.

AU - Maeda, M.

AU - Iguchi, H.

AU - Ida, K.

AU - Okamura, S.

AU - Yamada, H.

AU - Matsuoka, K.

PY - 1992/12/1

Y1 - 1992/12/1

N2 - In order to set up a data base and diagnostic capability for understanding atomic hydrogen behaviour in pumped divertor plasmas, an experiment and a feasibility study using a novel laser-induced fluorescence (LIF) technique were performed. For the former, combined measurements of LIF tuned to Hα and emission intensities at Hα/Hβ were carried out on the compact helical system (CHS). The comparison of the measured data and a particle simulation code revealed atomic hydrogen behaviour quantitatively, providing a full estimate of toroidally and poloidally asymmetric distributions of hydrogen atoms. In order to supplement the data base around the pumped divertor region, the applicability of an LIF technique which uses two-photon excitation from the ground state was examined, based on the real optical constraints of the envisaged JET pumped divertor. It was concluded that it is feasible and the only remaining problem is not a serious one.

AB - In order to set up a data base and diagnostic capability for understanding atomic hydrogen behaviour in pumped divertor plasmas, an experiment and a feasibility study using a novel laser-induced fluorescence (LIF) technique were performed. For the former, combined measurements of LIF tuned to Hα and emission intensities at Hα/Hβ were carried out on the compact helical system (CHS). The comparison of the measured data and a particle simulation code revealed atomic hydrogen behaviour quantitatively, providing a full estimate of toroidally and poloidally asymmetric distributions of hydrogen atoms. In order to supplement the data base around the pumped divertor region, the applicability of an LIF technique which uses two-photon excitation from the ground state was examined, based on the real optical constraints of the envisaged JET pumped divertor. It was concluded that it is feasible and the only remaining problem is not a serious one.

UR - http://www.scopus.com/inward/record.url?scp=4243476514&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4243476514&partnerID=8YFLogxK

U2 - 10.1016/S0022-3115(06)80033-4

DO - 10.1016/S0022-3115(06)80033-4

M3 - Article

AN - SCOPUS:4243476514

VL - 196-198

SP - 210

EP - 214

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

IS - C

ER -