Abstract
On QUEST, we are carrying out the steady state operation by RF current drive. A Thomson scattering (TS) system has been constructed to measure the plasma electron temperature. This system consists of a Nd:YAG laser of energy 1.65 J, a spherical mirror for collection of the scattering light, and a polychromator for spectroscopy. Because the Thomson scattering signal is weak for the low-density RF-sustained plasma, many scattering pulse signals were accumulated from steady-state plasmas. Electron temperature profiles were obtained for the steadystate spherical tokamak (ST) plasma for the first time. Six spatial points were measured by moving the fiber position, and the plasma electron temperature was in the range 10-500 eV.
| Original language | English |
|---|---|
| Article number | 1302001 |
| Journal | Plasma and Fusion Research |
| Volume | 8 |
| Issue number | 2013 |
| DOIs | |
| Publication status | Published - Jun 24 2013 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
Cite this
Electron temperature measurement on QUEST spherical tokamak by thomson scattering system. / Yamaguchi, Takashi; Ejiri, Akira; Hiratsuka, Junichi; Hasegawa, Makoto; Nagashima, Yoshihiko; Narihara, Kazumichi; Takase, Yuichi; Zushi, Hideki.
In: Plasma and Fusion Research, Vol. 8, No. 2013, 1302001, 24.06.2013.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Electron temperature measurement on QUEST spherical tokamak by thomson scattering system
AU - Yamaguchi, Takashi
AU - Ejiri, Akira
AU - Hiratsuka, Junichi
AU - Hasegawa, Makoto
AU - Nagashima, Yoshihiko
AU - Narihara, Kazumichi
AU - Takase, Yuichi
AU - Zushi, Hideki
PY - 2013/6/24
Y1 - 2013/6/24
N2 - On QUEST, we are carrying out the steady state operation by RF current drive. A Thomson scattering (TS) system has been constructed to measure the plasma electron temperature. This system consists of a Nd:YAG laser of energy 1.65 J, a spherical mirror for collection of the scattering light, and a polychromator for spectroscopy. Because the Thomson scattering signal is weak for the low-density RF-sustained plasma, many scattering pulse signals were accumulated from steady-state plasmas. Electron temperature profiles were obtained for the steadystate spherical tokamak (ST) plasma for the first time. Six spatial points were measured by moving the fiber position, and the plasma electron temperature was in the range 10-500 eV.
AB - On QUEST, we are carrying out the steady state operation by RF current drive. A Thomson scattering (TS) system has been constructed to measure the plasma electron temperature. This system consists of a Nd:YAG laser of energy 1.65 J, a spherical mirror for collection of the scattering light, and a polychromator for spectroscopy. Because the Thomson scattering signal is weak for the low-density RF-sustained plasma, many scattering pulse signals were accumulated from steady-state plasmas. Electron temperature profiles were obtained for the steadystate spherical tokamak (ST) plasma for the first time. Six spatial points were measured by moving the fiber position, and the plasma electron temperature was in the range 10-500 eV.
UR - http://www.scopus.com/inward/record.url?scp=84879112676&partnerID=8YFLogxK
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U2 - 10.1585/pfr.8.1302001
DO - 10.1585/pfr.8.1302001
M3 - Article
AN - SCOPUS:84879112676
VL - 8
JO - Plasma and Fusion Research
JF - Plasma and Fusion Research
SN - 1880-6821
IS - 2013
M1 - 1302001
ER -