Plasma and Fusion Research
Volume 2, S1100 (2007)
Regular Articles
- National Institute for Fusion Science, Oroshi-cho, Toki-shi, Gifu, 509-5292, Japan
- 1)
- Tono Geoscience Center, Japan Atomic Energy Agency, Toki, Gifu, Japan
Abstract
The sizes of sample volumes, which determine the spatial resolution, are estimated by trajectory calculation for the heavy ion beam probe on LHD. The beam width, the divergence, and the beam energy difference are taken into account. From the points of view of the spatial resolution and the signal intensity, parallel beam is suitable for the injection beam. The size of the sample volume by the parallel beam with 10mm diameter is 42 mm. It is sufficient to measure the potential profile in the internal transport barrier in the LHD plasma. Taking into account the spatial profile of the beam, the spatial resolution will be better than 42 mm.
Keywords
heavy ion beam probe, HIBP, spatial resolution, sample volume
Full Text
References
- [1] R.L. Hickok, Rev. Sci. Instrum. 38, 142 (1967).
- [2] T. Ido et al., Rev. Sci. Instrum. 77, 10F523 (2006).
- [3] T.P. Crowley et al., Fusion Engineering and Design 34-35, 653 (1997).
- [4] T. Ido et al., Plasma Phys. Control. Fusion 41, 1013 (1999).
- [5] A. Taniike, M. Sasao, A. Fujisawa, H. Iguchi, Y. Hamada, J. Fujita, M. Wada, Y. Mori, IEEE Trans. Plasma Sci. 22, 430 (1994).
- [6] A. Taniike, M. Sasao, J. Fujita, Y. Hamada, M. Wada, Fusion Engineering and Design 34-35, 675 (1997).
- [7] T. Shimozuma et al., Plasma Phys. Control. Fusion 45, 1183 (2003).
- [8] Y. Takeiri et al., Phys. Plasmas 10, 1788 (2003).
- [9] K. Ida et al., Phys. Rev. Lett. 91, 085003 (2003).
This paper may be cited as follows:
T. IDO, A. SHIMIZU, M. NISHIURA, Y. HAMADA, S. KATO, A. NISHIZAWA and H. NAKANO, Plasma Fusion Res. 2, S1100 (2007).