Experimental test of the radial force balance equation in the compact helical system
Author(s) -
K. Ida,
A. Fujisawa,
H. Iguchi,
Y. Yoshimura,
T. Minami,
S. Okamura,
Satoshi Nishimura,
M. Isobe,
S. Kado,
Y. Liang,
I. Nomura,
K. Tanaka,
M. Osakabe,
C. Takahashi,
K. Matsuoka
Publication year - 2001
Publication title -
physics of plasmas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.75
H-Index - 160
eISSN - 1089-7674
pISSN - 1070-664X
DOI - 10.1063/1.1331097
Subject(s) - physics , atomic physics , plasma , electric field , ion , rotation (mathematics) , ionization , charge exchange , radial velocity , electron , beam (structure) , plasma diagnostics , nuclear physics , optics , astrophysics , stars , geometry , mathematics , quantum mechanics
Experimental test of the radial force balance equation was done in the Compact Helical System Heliotron/Torsatron [S. Okamura et al. Nucl. Fusion 39, 1337 (1999)]. A radial electric field is measured with a heavy ion beam probe, while plasma rotation and drift velocity of fully ionized carbon are measured with charge exchange spectroscopy. The two measurements agree with each other to within 10% of the radial electric field in a wide range of electron densities of 0.3 2.0X10^19 m^ 3
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