@article{oai:nifs-repository.repo.nii.ac.jp:00006856,
 author = {Matsumoto,  Y. and Nishiura,  M. and Matsuoka,  K. and Sasao,  M. and Yamaoka,  H. and Wada,  M.},
 journal = {Annual Report of National Institute for Fusion Science},
 month = {2016-03-15},
 title = {Dependence of H- Extraction Probability on Gas Pressure and Filter Magnetic Field in a Volume-Type Negative Ion Source},
 volume = {Annual Report Apr.2003 - Mar.2004},
 year = {}
}