Development and initial operation of the pellet charge exchange diagnostic on LHD heliotron. - Goncharov, P. R.; Saida, T.; Tamura, N.; Ozaki, T.; Sasao, M.; Isobe, M.; Sudo, S.; Khlopenkov, K. V.; Krasilnikov, A. V.; Sergeev, V. Yu. (Review of Scientific Instruments, 2003)