@article{oai:nifs-repository.repo.nii.ac.jp:00007049,
 author = {Mitarai,  O. and Goto,  M. and Morisaki,  T. and Masuzaki,  T. and Ashikawa,  N.},
 journal = {Annual Report of National Institute for Fusion Science},
 month = {2016-03-15},
 title = {Estimation of the Particle Confinement Time of the Helium Ash in LHD},
 volume = {Annual Report Apr.2004 - Mar.2005},
 year = {}
}