@article{oai:repo.qst.go.jp:00045285,
 author = {Wakasugi, Masanori and Noda, Akira and Shirai, Toshiyuki and et.al and 白井 敏之},
 issue = {16},
 journal = {Physical Review Letters},
 month = {Apr},
 note = {A novel internal target has been developed, which will make electron scattering off short-lived radioactive nuclei possible in an electron storage ring. An "ion trapping" phenomenon in the electron storage ring was successfully utilized for the first time to form the target for electron scattering. Approximately 7E6 stable 133Cs ions were trapped along the electron beam axis for 85 ms at an electron beam current of 80 mA. The collision luminosity between the stored electrons and trapped Cs ions was determined to be 2:4(8)E25 cm-2s-1 by measuring elastically scattered electrons.},
 pages = {164801-1--164801-4},
 title = {Novel Internal Target for Electron Scattering off Unstable Nuclei},
 volume = {100},
 year = {2008}
}