PROBE EDGE MEASUREMENTS IN JET X-POINT PLASMAS FOR VARIOUS HEATING AND PLASMA CONDITIONS

被引:12
|
作者
TAGLE, JA [1 ]
CLEMENT, S [1 ]
LOARTE, A [1 ]
DEKOCK, L [1 ]
HARBOUR, PJ [1 ]
OBRIEN, D [1 ]
ERENTS, SK [1 ]
JANESCHITZ, G [1 ]
NICHOLSON, C [1 ]
VINCE, J [1 ]
机构
[1] CULHAM LAB,AEA FUSION,ABINGDON OX14 3DB,OXON,ENGLAND
关键词
D O I
10.1016/S0022-3115(06)80069-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
An edge database is presented for divertor discharges in JET with various configurations: single null upper/lower (SNU/SNL), double null (DN), delB drift towards or away from the target and various divertor target materials (Be and C). We present the scaling of the scrape-off layer (SOL) parameters (i.e. density, temperature and their radial profiles) with main plasma parameters for divertor discharges with: I(p) = 3.2 MA, [n(e)BAR] = 1-7 X 10(19) m-3 and B(t) = 2.2-3.4 T. Results are presented for ohmic, L-Mode and H-mode discharges with additional heating (NBI and ICRH) up to 10 MW. The parameters were measured in the main SOL and at the divertor plates. A comparison is made for discharges when gas puffing was used either at the midplane OT at the X-point. The results are compared with similar scalings obtained in limiter plasmas and with the predictions by simple SOL models.
引用
收藏
页码:409 / 414
页数:6
相关论文
共 50 条
  • [1] X-point heating, potentials, and temperature asymmetries in edge plasmas
    Cohen, RH
    Xu, X
    Schaeffer, MJ
    [J]. CONTRIBUTIONS TO PLASMA PHYSICS, 2000, 40 (3-4) : 437 - 442
  • [2] Turbulent transport studies in JET edge plasmas in X-point configurations
    Garcia-Cortés, I
    Loarte, A
    Balbín, R
    Bleuel, J
    Chankin, A
    Davies, SJ
    Endler, M
    Erents, SK
    Hidalgo, C
    Matthews, GF
    [J]. JOURNAL OF NUCLEAR MATERIALS, 2001, 290 : 604 - 608
  • [3] HEAT PULSE ANALYSIS IN JET LIMITER AND X-POINT PLASMAS
    CARDOZO, NJL
    DEHAAS, JCM
    [J]. NUCLEAR FUSION, 1990, 30 (03) : 521 - 532
  • [4] THE JET PLASMA BOUNDARY WITH LIMITER AND X-POINT DISCHARGES
    STOTT, PE
    [J]. JOURNAL OF NUCLEAR MATERIALS, 1989, 162 : 3 - 13
  • [5] Heating and acceleration at X-point reconnection
    Nocera, L
    Pegoraro, F
    Bulanov, SV
    Bertin, G
    [J]. PHYSICA SCRIPTA, 1996, T63 : 197 - 202
  • [6] X-point effect on edge stability
    Saarelma, S.
    Kwon, O. J.
    Kirk, A.
    [J]. PLASMA PHYSICS AND CONTROLLED FUSION, 2011, 53 (02)
  • [7] MHD and fluid instabilities at the plasma edge in the presence of a separatrix and X-point
    Myra, JR
    D'Ippolito, DA
    Xu, XQ
    Cohen, RH
    [J]. CONTRIBUTIONS TO PLASMA PHYSICS, 2000, 40 (3-4) : 352 - 361
  • [8] Langmuir probe measurements in the lower x-point vicinity of the ASDEX Upgrade divertor
    Tsalas, M
    Tsois, N
    Rohde, V
    Neuhauser, J
    [J]. JOURNAL OF NUCLEAR MATERIALS, 2005, 337 (1-3) : 751 - 755
  • [9] Linear eigenvalue code for edge plasma in full tokamak X-point geometry
    Baver, D. A.
    Myra, J. R.
    Umansky, M. V.
    [J]. COMPUTER PHYSICS COMMUNICATIONS, 2011, 182 (08) : 1610 - 1620
  • [10] Resistive X-point modes in tokamak boundary plasmas
    Myra, JR
    D'Ippolito, DA
    Xu, XQ
    Cohen, RH
    [J]. PHYSICS OF PLASMAS, 2000, 7 (06) : 2290 - 2293