@article{oai:nifs-repository.repo.nii.ac.jp:00000272, author = {NAGAOKA, Kenichi and ISOBE, Mitsutaka and SHINOHARA, Kouji and OSAKABE, Masaki and SHIMIZU, Akihiro and OKAMURA, Shoichi}, journal = {Plasma and Fusion Research}, month = {Jan}, note = {A directional Langmuir probe (DLP) method has been applied to measurement of energetic particles (ions) in a magnetically confined plasma. Two experimental demonstrations were performed in the compact helical system (CHS). One was a neutral beam modulation experiment and the other was the measurement of energetic ion loss induced by MHD bursts. The results of the DLP were consistent with those of a neutral particle analyzer (NPA) and a lost ion probe (LIP). These experiments show that this method is applicable outside and also inside the last closed flux surface.}, title = {Energetic Ion Measurements Using a Directional Probe}, volume = {Vol.1}, year = {2006} }