Divertor simulation experiment and its future research plan making use of a large tandem mirror device by Nakashima, Y, Takeda, H, Hosoi, K, Yonenaga, R, Katanuma, I, Ichimura, K, Ichimura, M, Imai, T, Ishii, T, Kariya, T, Kiwamoto, Y, Minami, R, Miyata, Y, Ozawa, H, Shidara, H, Yamaguchi, Y, Yoshikawa, M, Asakura, N, Hatayama, A, Higashizono, Y, Kado, S, Masuzaki, S, Nishino, N, Ohno, N, Ueda, Y