(EXP1/09) First Plasmas in Heliotron J
T. Obiki1), T. Mizuuchi1),
K. Nagasaki1), H. Okada1), S. Besshou2),
F. Sano1), K. Kondo2), Y. Liu1),
Y. Nakamura2), K. Hanatani1),
M. Nakasuga2), M. Wakatani2),
T. Hamada1), Y. Manabe1), H. Shidara1),
O. Yamagishi2), K. Aizawa2),
W. L. Ang1), Y. I. Ikeda1),
Y. Kawazome2),
T. Kobayashi1), S. Maeno2),
T. Takamiya1), M. Takeda1),
K. Tomiyama2), Y. Ijiri1), T. Senju1),
K. Yaguchi1), K. Sakamoto1), K. Toshi1),
M. Shibano1)
1) Institute of Advanced Energy, Kyoto University,
Gokasho, Uji, Japan.
2) Graduate School of Energy Science, Kyoto University, Gokasho, Uji,
Japan.
Abstract. Results obtained in the initial experiment phase of Heliotron J
are reported. The electron beam mapping of the magnetic surfaces has
revealed that the observed surfaces are in basic agreement with the
calculated ones based on the measured ambient field around the device. For
53.2-GHz second harmonic ECH hydrogen plasmas, a fairly wide resonance range
for breakdown by the
TE02 mode has been observed in Heliotron J as
compared with that of Heliotron E. With ECH injection powers up to
400kW, diamagnetic stored energies up to 0.7 kJ were obtained without
the optimized density control.
IAEA 2001