1. [1] DOE Handbook: Tritium Handling and Safe Storage, DOE-HDBK-1129-99 (1999).
2. [2] K. Akahane, N. Ezumi, Y. Uesugi, Y. Tanaka, M. Tanaka, and K. Nishimura, Fusion Sci. Technol. 60, 1343 (2011).
3. [3] A. Fridman, Plasma Chemistry (Cambridge University Press, New York, 2008).
4. [4] S. Kambara, R. Kuriyama, T. Osakabe and K. Yukimura, International Journal of Hydrogen Energy 33, 6792 (2008).
5. [5] T. Osakabe, S. Kambara, R. Kuriyama, A. Koyano, K. Yukimura and H. Moritomi, Journal of the Combustion Society of Japan 50, 136 (2008) in Japanese.