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Experimental test of the radial force balance equation in the compact helical system

2001; American Institute of Physics; Volume: 8; Issue: 1 Linguagem: Inglês

10.1063/1.1331097

1527-2419

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,

Particle accelerators and beam dynamics

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 0.3–2.0×1019 m−3.