Abstract
The measurement of the ion temperature of the TRIAM-1 tokamak plasma is carried out by using a seven-channel neutral energy analyzer. The temporal and spatial variations of the ion temperature have been obtained with the spatial resolution of +-4.3 mm and the temporal resolution of 100 ..mu..sec. The energy range of the analyzed neutral particles is from 0.2 to 8 keV. The energy spectrum in the TRIAM-1 plasma without the strong gas puffing usually consists of two-component Maxwellian; the one represents the thermal part which is a superposition of the contribution from a hot region (T sub(i) = 100 - 300 eV) and that from an edge region (T sub(i) asymptotically equals 50 eV), and the other represents the superthermal part (T sub(i) asymptotically equals 1 keV). The neutral particle energy spectra at several vertical positions are obtained by scanning the analyzer in the vertical direction. From those spectra, the radial profile of the ion temperature is derived by means of the nonlinear optimization method.
Nakamura, K;
Hiraki, N;
Toi, K;
Itoh, S
[1]
- Kyushu Univ., Fukuoka (Japan). Research Inst. for Applied Mechanics
Citation Formats
Nakamura, K, Hiraki, N, Toi, K, and Itoh, S.
Ion temperature measurement by neutral energy analyzer in high-field tokamak TRIAM-1.
Japan: N. p.,
1980.
Web.
Nakamura, K, Hiraki, N, Toi, K, & Itoh, S.
Ion temperature measurement by neutral energy analyzer in high-field tokamak TRIAM-1.
Japan.
Nakamura, K, Hiraki, N, Toi, K, and Itoh, S.
1980.
"Ion temperature measurement by neutral energy analyzer in high-field tokamak TRIAM-1."
Japan.
@misc{etde_6899128,
title = {Ion temperature measurement by neutral energy analyzer in high-field tokamak TRIAM-1}
author = {Nakamura, K, Hiraki, N, Toi, K, and Itoh, S}
abstractNote = {The measurement of the ion temperature of the TRIAM-1 tokamak plasma is carried out by using a seven-channel neutral energy analyzer. The temporal and spatial variations of the ion temperature have been obtained with the spatial resolution of +-4.3 mm and the temporal resolution of 100 ..mu..sec. The energy range of the analyzed neutral particles is from 0.2 to 8 keV. The energy spectrum in the TRIAM-1 plasma without the strong gas puffing usually consists of two-component Maxwellian; the one represents the thermal part which is a superposition of the contribution from a hot region (T sub(i) = 100 - 300 eV) and that from an edge region (T sub(i) asymptotically equals 50 eV), and the other represents the superthermal part (T sub(i) asymptotically equals 1 keV). The neutral particle energy spectra at several vertical positions are obtained by scanning the analyzer in the vertical direction. From those spectra, the radial profile of the ion temperature is derived by means of the nonlinear optimization method.}
journal = []
volume = {27:86}
journal type = {AC}
place = {Japan}
year = {1980}
month = {Feb}
}
title = {Ion temperature measurement by neutral energy analyzer in high-field tokamak TRIAM-1}
author = {Nakamura, K, Hiraki, N, Toi, K, and Itoh, S}
abstractNote = {The measurement of the ion temperature of the TRIAM-1 tokamak plasma is carried out by using a seven-channel neutral energy analyzer. The temporal and spatial variations of the ion temperature have been obtained with the spatial resolution of +-4.3 mm and the temporal resolution of 100 ..mu..sec. The energy range of the analyzed neutral particles is from 0.2 to 8 keV. The energy spectrum in the TRIAM-1 plasma without the strong gas puffing usually consists of two-component Maxwellian; the one represents the thermal part which is a superposition of the contribution from a hot region (T sub(i) = 100 - 300 eV) and that from an edge region (T sub(i) asymptotically equals 50 eV), and the other represents the superthermal part (T sub(i) asymptotically equals 1 keV). The neutral particle energy spectra at several vertical positions are obtained by scanning the analyzer in the vertical direction. From those spectra, the radial profile of the ion temperature is derived by means of the nonlinear optimization method.}
journal = []
volume = {27:86}
journal type = {AC}
place = {Japan}
year = {1980}
month = {Feb}
}