- 著者
- Yoshikawa M. Yasuhara R. Morimoto M. Shima Y. Kohagura J. Sakamoto M. Nakashima Y. Imai T. Yamada I. Kawahata K. Funaba H. Minami T.
- 出版者
- American Institute of Physics
- 雑誌
- Review of scientific instruments (ISSN:00346748)
- 巻号頁・発行日
- vol.83, no.10, pp.10E333, 2012-10
- 被引用文献数
- 17 6
In the GAMMA 10 tandem mirror, the typical electron density is comparable to that of the peripheral plasma of torus-type fusion devices. Therefore, an effective method to increase Thomson scattering (TS) signals is required in order to improve signal quality. In GAMMA 10, the yttrium-aluminum-garnet (YAG)-TS system comprises a laser, incident optics, light collection optics, signal detection electronics, and a data recording system. We have been developing a multi-pass TS method for a polarization-based system based on the GAMMA 10 YAG TS. To evaluate the effectiveness of the polarization-based configuration, the multi-pass system was installed in the GAMMA 10 YAG-TS system, which is capable of double-pass scattering. We carried out a Rayleigh scattering experiment and applied this double-pass scattering system to the GAMMA 10 plasma. The integrated scattering signal was made about twice as large by the double-pass system.