Two-point motional Stark effect diagnostic for Madison Symmetric Torus

被引:3
作者
Ko, J. [1 ]
Den Hartog, D. J. [1 ]
Caspary, K. J. [1 ]
Den Hartog, E. A. [1 ]
Pablant, N. A. [2 ]
Summers, H. P. [3 ]
机构
[1] Univ Wisconsin, Madison, WI 53706 USA
[2] Univ Calif San Diego, La Jolla, CA 92093 USA
[3] Univ Strathclyde, Glasgow G1 1XQ, Lanark, Scotland
关键词
BEAM EMISSION-SPECTROSCOPY; REVERSED-FIELD PINCH;
D O I
10.1063/1.3461995
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A high-precision spectral motional Stark effect (MSE) diagnostic provides internal magnetic field measurements for Madison Symmetric Torus (MST) plasmas. Currently, MST uses two spatial views-on the magnetic axis and on the midminor (off-axis) radius, the latter added recently. A new analysis scheme has been developed to infer both the pitch angle and the magnitude of the magnetic field from MSE spectra. Systematic errors are reduced by using atomic data from atomic data and analysis structure in the fit. Reconstructed current density and safety factor profiles are more strongly and globally constrained with the addition of the off-axis radius measurement than with the on-axis one only. (C) 2010 American Institute of Physics. [doi:10.1063/1.3461995]
引用
收藏
页数:3
相关论文
共 9 条
  • [1] Equilibrium reconstruction in the Madison Symmetric Torus reversed field pinch
    Anderson, JK
    Forest, CB
    Biewer, TM
    Sarff, JS
    Wright, JC
    [J]. NUCLEAR FUSION, 2004, 44 (01) : 162 - 171
  • [2] First charge exchange recombination spectroscopy and motional Stark effect results from the Madison Symmetric Torus reversed field pinch
    Craig, D
    Den Hartog, DJ
    Fiksel, G
    Davydenko, VI
    Ivanov, AA
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2001, 72 (01) : 1008 - 1011
  • [3] Advances in neutral-beam-based diagnostics on the Madison Symmetric Torus reversed-field pinch (invited)
    Den Hartog, D. J.
    Craig, D.
    Ennis, D. A.
    Fiksel, G.
    Gangadhara, S.
    Holly, D. J.
    Reardon, J. C.
    Davydenko, V. I.
    Ivanov, A. A.
    Lizunov, A. A.
    O'Mullane, M. G.
    Summers, H. P.
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2006, 77 (10)
  • [4] THE MADISON SYMMETRICAL TORUS
    DEXTER, RN
    KERST, DW
    LOVELL, TW
    PRAGER, SC
    SPROTT, JC
    [J]. FUSION TECHNOLOGY, 1991, 19 (01): : 131 - 139
  • [5] Hecht E., 2016, Optics, V5
  • [6] MAGNETIC-FIELD PITCH-ANGLE MEASUREMENTS IN THE PBX-M TOKAMAK USING THE MOTIONAL STARK-EFFECT
    LEVINTON, FM
    FONCK, RJ
    GAMMEL, GM
    KAITA, R
    KUGEL, HW
    POWELL, ET
    ROBERTS, DW
    [J]. PHYSICAL REVIEW LETTERS, 1989, 63 (19) : 2060 - 2063
  • [7] BEAM EMISSION-SPECTROSCOPY AS A COMPREHENSIVE PLASMA DIAGNOSTIC-TOOL
    MANDL, W
    WOLF, RC
    VONHELLERMANN, MG
    SUMMERS, HP
    [J]. PLASMA PHYSICS AND CONTROLLED FUSION, 1993, 35 (10) : 1373 - 1394
  • [8] SUMMERS HP, 1994, JETIR9406
  • [9] SELF-CALIBRATING MAGNETIC-FIELD DIAGNOSTICS IN-BEAM EMISSION-SPECTROSCOPY
    VOSLAMBER, D
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1995, 66 (04) : 2892 - 2903