HCN laser scattering on the JIPP T-IIU tokamak |
| |
| Authors: | K Kawahta T Tetsuka J Fujita M Nagatsu H Ohnishi S Okajima and T Iwasaki |
| |
| Institution: | (1) Institute of Plasma Physics, Nagoya University, Furo-cho, Chikusa-ku, 464-01 Nagoya, Japan;(2) Faculty of Engineering, Nagoya University, Furo-cho, Chikusa-ku, 464-01 Nagoya, Japan;(3) Faculty of Engineering, Chubu University, 1200, Matsumoto-cho, 487 Kasugai, Aichi, Japan |
| |
| Abstract: | A 4-channel HCN laser scattering system has been developed and applied to the JIPP T-IIU tokamak. Main aim of this system is to study microturbulence excited in the plasma, especially in the high power ICRF heating experiment. The observed density fluctuations are in a frequency range of the electron diamagnetic drift wave and have broad frequency spectra. The main part of the wavenumber is found to satisfy the condition of
. In the heating experiments, deterioration of the energy confinement time is observed, and the density fluctuation level increases with the increase of the heating power. |
| |
| Keywords: | HCN laser scattering density fluctuation tokamak plasma ICRF heating |
| 本文献已被 SpringerLink 等数据库收录！ |
|
