@article{oai:nifs-repository.repo.nii.ac.jp:00000329,
 author = {OZAKI,  Tetsuo and GONCHAROV,  Pavel and LYON,  Jim and LYON,  Jim and MURAKAMI,  Sadayoshi and SUDO,  Shigeru and NAKANISHI,  Hideya and Kojima,  Mamoru and YAMAUCHI,  Kenji and SHOJI,  Mamoru and KUMAZAWA,  Ryuhei and MUTOH,  Takashi and SEKI,  Tetsuo and WATARI, Tetsuo and SAITO,  Kenji and TORII,  Hiroki and TORII,  Hiroki and OKA,  Yoshihide and OSAKABE,  Masaki and TAKEIRI,  Yasuhiko and TSUMORI,  Katsuyoshi and KANEKO,  Osamu and OHDACHI,  Satoshi and SASAO,  Mamiko and SAKAKIBARA,  Satoru and Inagaki,  S. and PETERSON,  Byron and PETERSON,  Byron and KUBO,  Shin and SHIMOZUMA,  Takashi and IDEI,  Hiroshi and KAWAHATA,  Kazuo and NAKAMURA,  Yukio and NODA,  Nobuaki and OHYABU,  Nobuyoshi and MOTOJIMA,  Osamu and FUJIWARA,  Masami and Gl/G2, Experimental Group and Gl/G2, Experimental Group and OZAKI,  Tetsuo and GONCHAROV,  Pavel and MURAKAMI,  Sadayoshi and SUDO,  Shigeru and NAKANISHI,  Hideya and KOJIMA,  Mamoru and YAMAUCHI,  Kenji and SHOJI,  Mamoru and KUMAZAWA,  Ryuhei and MUTOH,  Takashi and SEKI,  Tetsuo and WATARI,  Tetsuo and SAITO,  Kenji and OKA,  Yoshihide and OSAKABE,  Masaki and TAKEIRI,  Yasuhiko and TSUMORI,  Katsuyosh and KANEKO,  Osamu and OHDACHI,  Stoshi and SASAO,  Mamiko and SAKAKIBARA,  Satoru and INAGAKI,  S. and KUBO,  Shin and SHIMOZUMA,  Takashi and IDEI,  Hiroshi and KAWAHATA,  Kazuo and NAKAMURA,  Yukio and OHYABU,  Nobuyoshi and MOTOJIMA,  Osamu},
 journal = {Journal of Plasma and Fusion Research SERIES, Journal of Plasma and Fusion Research SERIES},
 month = {Jan},
 note = {The spatial resolved energy spectra can be observed during a long discharge of NBI plasma by
continuously scanning the neutral particle analyzer. In these discharges, the plasmas are initiated by the ECH heating, after that NBI#2 (Co-injection) sustains the plasma during 40-60 seconds. The scanned pitch angle is from 44 degrees to 74 degrees. The injected neutral beam (hydrogen) energy of NBI#2 is only 130 keV because the original ion source polarity is negative. The shape of spectra is almost similar from 44 degrees to 53 degrees. However the spectra from 55 degrees are strongly varied. It reflects the injection pitch angle of the beam according to the simulation (53 degrees ot R* = 3.75 m in simulation). The beam keeps the pitch angle at incidence until the beam energy becomes to the energy, which the pitch angle scattering is occurred by the energy loss due to the electron collision. The low flux region can be observed around 10-15 keV, which is 15 times of the electron temperature. The energy region may be equal to the energy at which the pitch angle scattering is occurred. At the energy, the particle is scattered by the collision with the plasma ions and some of particles may run away from the plasma because they have a possibility to enter the loss cone. According to the simulation, the loss cone can be expected at the 10 keV with the small angular dependence. The depth of the loss cone is deep at the small pitch angle. The hollow in the spectrum may be concluded to be the loss cone as the tendency is almost agreed with the experimental result.},
 title = {High Energy Particle Measurements during Long Discharge in LHD},
 volume = {Vol.5},
 year = {2002}
}