@article{oai:nifs-repository.repo.nii.ac.jp:00011131,
 author = {OGAWA,  Kunihiro and ISOBE,  Mitsutaka and TOI,  Kazuo and WATANABE,  F. and SPONG,  Donald A. and SHIMIZU,  Akihiro and OSAKABE,  Masaki and DARROW,  Douglass S. and OHDACHI,  Satoshi and SAKAKIBARA,  Satoru and LHD, Experiment Group},
 issue = {4},
 journal = {Plasma Science and Technology},
 month = {Apr},
 note = {Beam-ion losses induced by fast-ion-driven toroidal Alfvén eigenmodes (TAE) were measured with a scintillator-based lost fast-ion probe (SLIP) in the large helical device (LHD). The SLIP gave simultaneously the energy E and the pitch angle χ = arccos(υ///υ) distribution of the lost fast ions. The loss fluxes were investigated for three typical magnetic configurations of Rax_vac = 3.60 m, 3.75 m, and 3.90 m, where Rax_vac is the magnetic axis position of the vacuum field. Dominant losses induced by TAEs in these three configurations were observed in the E/χ regions of 50∼190 keV/40°, 40∼170 keV/25°, and 30∼190 keV/30°, respectively. Lost-ion fluxes induced by TAEs depend clearly on the amplitude of TAE magnetic fluctuations, Rax_vac and the toroidal field strength Bt. The increment of the loss fluxes has the dependence of (bTAE/Bt)s. The power s increases from s = 1 to 3 with the increase of the magnetic axis position in finite beta plasmas.},
 title = {Magnetic Configuration Effects on Fast Ion Losses Induced by Fast Ion Driven Toroidal Alfvén Eigenmodes in the Large Helical Device},
 volume = {14},
 year = {2012}
}