@techreport{oai:nifs-repository.repo.nii.ac.jp:00010065,
 author = {"Nishizawa,  A. and Hamada,  Y. and Kawasumi,  Y. and Iguchi,  H."},
 month = {May},
 note = {"Utilizing multiple sintering, we have considerably increased the lifetime of a thallium (TI) zeolite ion source used in single-ended electrostatic accelerators.  The obtained lifetime of a small ion source (6.4 mm in diameter and 10 mm long) is about 4400 muAh(70 muAh/mm^3 for TI material)."},
 title = {Increase of Lifetime of Thallium Zeolite Ion Source for Single-Ended Accelerator},
 year = {1995}
}