Abstract
The dependence of MAR on the plasma temperature near the divertor target is investigated by using the collisional-radiative model including the transport processes for plasma and neutral species, and the formation of neutral particles on the divertor target. In the model of the recycling process, the divertor region is divided into two regions, namely, the region 1 with the high plasma temperature of 10 eV and the region 2 with the low plasma temperature of 0.5 - 3 eV. It is shown that MAR hardly contributes to plasma recombination in the plasma temperature range of the region 2. This result supports the tokamak experimental results. The reasons for the small contributions of MAR to plasma recombination are the small ratio of nH2/ne and the re-ionization of the excited atoms.
| Original language | English |
|---|---|
| Pages (from-to) | 643-648 |
| Number of pages | 6 |
| Journal | Contributions to Plasma Physics |
| Volume | 46 |
| Issue number | 7-9 |
| DOIs | |
| Publication status | Published - 2006 |
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Keywords
- Collisional-radiative model
- Detached divertor plasma
- Hydrogen atom
- Hydrogen molecule
- Hydrogen recycling
- MAR
- Neutral transport
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
Cite this
The effect of plasma temperature on MAR in detached divertor plasma. / Miyamoto, K.; Fukano, A.; Hatayama, Akiyoshi.
In: Contributions to Plasma Physics, Vol. 46, No. 7-9, 2006, p. 643-648.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The effect of plasma temperature on MAR in detached divertor plasma
AU - Miyamoto, K.
AU - Fukano, A.
AU - Hatayama, Akiyoshi
PY - 2006
Y1 - 2006
N2 - The dependence of MAR on the plasma temperature near the divertor target is investigated by using the collisional-radiative model including the transport processes for plasma and neutral species, and the formation of neutral particles on the divertor target. In the model of the recycling process, the divertor region is divided into two regions, namely, the region 1 with the high plasma temperature of 10 eV and the region 2 with the low plasma temperature of 0.5 - 3 eV. It is shown that MAR hardly contributes to plasma recombination in the plasma temperature range of the region 2. This result supports the tokamak experimental results. The reasons for the small contributions of MAR to plasma recombination are the small ratio of nH2/ne and the re-ionization of the excited atoms.
AB - The dependence of MAR on the plasma temperature near the divertor target is investigated by using the collisional-radiative model including the transport processes for plasma and neutral species, and the formation of neutral particles on the divertor target. In the model of the recycling process, the divertor region is divided into two regions, namely, the region 1 with the high plasma temperature of 10 eV and the region 2 with the low plasma temperature of 0.5 - 3 eV. It is shown that MAR hardly contributes to plasma recombination in the plasma temperature range of the region 2. This result supports the tokamak experimental results. The reasons for the small contributions of MAR to plasma recombination are the small ratio of nH2/ne and the re-ionization of the excited atoms.
KW - Collisional-radiative model
KW - Detached divertor plasma
KW - Hydrogen atom
KW - Hydrogen molecule
KW - Hydrogen recycling
KW - MAR
KW - Neutral transport
UR - http://www.scopus.com/inward/record.url?scp=33749433381&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33749433381&partnerID=8YFLogxK
U2 - 10.1002/ctpp.200610057
DO - 10.1002/ctpp.200610057
M3 - Article
AN - SCOPUS:33749433381
VL - 46
SP - 643
EP - 648
JO - Contributions to Plasma Physics
JF - Contributions to Plasma Physics
SN - 0863-1042
IS - 7-9
ER -