@article{oai:nifs-repository.repo.nii.ac.jp:00003561,
 author = {"Akiyama,  T. and Yasuhara,  R. and Tokuzawa,  T. and Isobe,  M. and Kawahata,  K. and Nakayama,  K. and Okajima,  S."},
 journal = {Annual Report of National Institute for Fusion Science},
 title = {Electron Density Measurement System for DEMO-relevant Helical Plasmas},
 volume = {Annual Report Apr.2011 - Mar.2012}
}