@article{oai:nifs-repository.repo.nii.ac.jp:00009232, author = {Tsushima, A. and Tanaka, M.Y. and Nagaoka, K. and Sakata, M.}, journal = {Annual Report of National Institute for Fusion Science}, month = {2016-03-14}, title = {Optimization of Directional Probes for Plasma Flow Measurements}, volume = {Annual Report Apr.1997 - Mar.1998}, year = {} }