Edge ion-to-electron temperature ratio in the Tore Supra tokamak

被引:55
作者
Kocan, M. [1 ]
Gunn, J. P. [1 ]
Pascal, J-Y [1 ]
Bonhomme, G. [2 ]
Fenzi, C. [1 ]
Gauthier, E. [1 ]
Segui, J-L [1 ]
机构
[1] CEA, IRFM, F-13108 St Paul Les Durance, France
[2] Nancy Univ, F-54506 Vandoeuvre Les Nancy, France
关键词
D O I
10.1088/0741-3335/50/12/125009
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Both ion and electron temperatures in the scrape-off layer ( SOL) of the Tore Supra tokamak were measured by a retarding field analyzer during an ohmic density scan. SOL T-i was found to be higher than T-e by a factor of 4-7. The ion-to-electron temperature ratio tau decreases with increasing density. Core T-i and T-e measurements in Tore Supra combined with a multi-machine database of tau measurements show that tau > 1 also in the edge of the confined plasma and increases with radius.
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页数:10
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共 27 条
  • [1] SOL plasma profiles under radiative and detached divertor conditions in JT-60U
    Asakura, N
    Koide, Y
    Itami, K
    Hosogane, N
    Shimizu, K
    TsujiIio, S
    Sakurai, S
    Sakasai, A
    [J]. JOURNAL OF NUCLEAR MATERIALS, 1997, 241 : 559 - 563
  • [2] THE EFFECT OF A BIAS POTENTIAL ON DEUTERIUM TRAPPING IN THE CARBON THERMAL-DESORPTION PROBE ON DITE
    ERENTS, SK
    STANGEBY, PC
    [J]. JOURNAL OF NUCLEAR MATERIALS, 1982, 111 (NOV-) : 165 - 167
  • [3] A DC probe diagnostics for fast electron temperature measurements in tokamak edge plasmas
    Gunn, JP
    Devynck, P
    Pascal, JY
    Adámek, J
    Duran, I
    Hron, M
    Stöckel, J
    Zácek, F
    Barina, O
    Hrach, R
    Vicher, M
    Van Oost, G
    [J]. CZECHOSLOVAK JOURNAL OF PHYSICS, 2002, 52 (10) : 1107 - 1114
  • [4] Guo H Y., 1996, Contrib. Plasma Phys, V36, P81, DOI [10.1002/ctpp.19960360113, DOI 10.1002/CTPP.19960360113]
  • [5] HOTHKER K, 1990, REV SCI INSTRUM, V61, P114, DOI 10.1063/1.1141884
  • [6] Spectroscopic measurements of the ion temperature profile in front of a limiter in TEXTOR-94
    Huber, A
    Pospieszczyk, A
    Unterberg, B
    Brix, M
    Mertens, P
    Philipps, V
    Schweer, B
    [J]. PLASMA PHYSICS AND CONTROLLED FUSION, 2000, 42 (05) : 569 - 578
  • [7] A FLUID THEORY OF ION COLLECTION BY PROBES IN STRONG MAGNETIC-FIELDS WITH PLASMA-FLOW
    HUTCHINSON, IH
    [J]. PHYSICS OF FLUIDS, 1987, 30 (12) : 3777 - 3781
  • [8] Progress toward steady-state operation on Tore Supra
    Jacquinot, J
    Hoang, GT
    [J]. PLASMA SCIENCE & TECHNOLOGY, 2004, 6 (01) : 2101 - 2108
  • [9] Simulation of the plasma-wall interaction in a tokamak with the Monte Carlo code ERO-TEXTOR
    Kirschner, A
    Philipps, V
    Winter, J
    Kögler, U
    [J]. NUCLEAR FUSION, 2000, 40 (05) : 989 - 1001
  • [10] Ion temperature measurements in the tokamak scrape-off layer
    Kocan, M.
    Panek, R.
    Stockel, J.
    Hron, M.
    Gunn, J. P.
    Dejarnac, R.
    [J]. JOURNAL OF NUCLEAR MATERIALS, 2007, 363 (1436-1440) : 1436 - 1440