@techreport{oai:nifs-repository.repo.nii.ac.jp:00010000, author = {"Murakami, S. and Yamada, H. and Wakasa, A. and Sasao, M. and Isobe, M. and Ozaki, T. and Goncharov, P. and Saida, T. and Lyon, J. F. and Osakabe, M. and Narihara, K. and Tanaka, K. and Inagaki, H. and Morita, S. and Ida, K. and Miyazawa, J. and Idei, H. and Ikeda, K. and Kubo, S. and Kumazawa, R. and Mutoh, T. and Oka, Y. and Saito, K. and Seki, T. and Takeiri, Y. and Torii, Y. and Tumori, K. and Watari, T. and Watanabe, K. Y. and Funaba, H. and Yokoyama, M. and Maassberg, H. and Beidler, C. D. and Itoh, K. and Kaneko, O. and Komori, A. and Akiyama, T. and Ashikawa, N. and Emoto, M. and Goto, M. and Kawahata, K. and Kawazome, H. and Khlopenkov, K. and Kobuchi, T. and Kostrioukov, A. and Liang, Y. and Masuzaki, S. and Minami, T. and Morisaki, T. and Muto, S. and Nagayama, Y. and Nakamura, Y. and Nakanishi, H. and Narushima, Y. and Nishimura, K. and Noda, N. and Notake, T. and Nozato, H. and Ohdachi, S. and Ohyabu, N. and Peterson, B. J. and Sagara, A. and Sakakibara, S. and Sakamoto, R. and Sato, K. and Sato, M. and Shimozuma, T. and Shoji, M. and Suzuki, H. and Takeuchi, N. and Tamura, N. and Toi, K. and Tokuzawa, T. and Xu, Y. and Yamada, I. and Yamamoto, S. and Yamamoto, T. and Yoshimura, Y. and Yoshinuma, M. and Tanaka, M. and Okamura, S. and Yoshimura, S. and Nagaoka, K. and Satow, T. and Imagawa, S. and Mito, T. and Ohtake, I. and Uda, T. and Ohkubo, K. and Sudo, S. and Yamazaki, K. and Matsuoka, K. and Motojima, O. and Hamada, Y. and Fujiwara, M."}, month = {Oct}, note = {"An optimized configuration of the neoclassical transport and the energetic particle confinement to a level typical of so-called ""advanced stellarators"" is found by shifting the magnetic axis position in LHD. Electron heat transport and NBI beam ion deistribution are investigated in low-collisionality LHD plasma in order to study the magnetic field optimization effect on the thermal plasma transport and the energetic particle confinement. A higher electron temperature is obtained in the optimized configuration, and the transport analysis suggests a considerable effect of neoclassical transport on the electron heat transport assuming the ion-root level of radial electric field. Also a higher energetic ion distribution of NBI beam ions is observed showing the improvement of the energetic particle confinement. These obtained results support a future reactor design by magnetic field optimization in a non-axisymmetric configuration."}, title = {A Demonstration of Magnetic Field Optimization in LHD}, year = {2002} }