1. Slow RI-beams from projectile fragment separators
- Author
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Kunihiro Okada, Koji Noda, Toshiyuki Kubo, Yoshihisa Ishida, Hirokane Kawakami, Hitoshi Ohyama, Yukari Matsuo, Shunsuke Ohtani, Yasushi Kanai, Tadashi Kambara, Yoshimitsu Fukuyama, Yasunori Yamazaki, Takashi Nakamura, Takao M. Kojima, Atsushi Yoshida, Youichi Nakai, Nagayasu Ohshima, Ichiro Katayama, Michiharu Wada, and Tetsu Sonoda
- Subjects
Nuclear and High Energy Physics ,Projectile ,Chemistry ,Fragment (computer graphics) ,Separator (oil production) ,Trapping ,Nuclear physics ,Physics::Accelerator Physics ,Atomic physics ,Nuclear Experiment ,Instrumentation ,Beam energy ,Beam (structure) ,Overall efficiency - Abstract
The projectile fragment separator provides a wide variety of short-lived RI-ions with less restrictions on their chemical property or lifetime limit. The beam energy and quality is, however, not adequate for low-energy beam experiments, in particular for trapping experiments. Recently, one has proposed to obtain a low-energy beam from an energetic RI-beam leaving a projectile fragment separator by using a large gas-catcher and an rf ion-guide system. In off-line and in on-line test experiments, the principle of the rf ion-guide was proven. An overall efficiency of 0.2% for 70 MeV/u 8 Li from the RIKEN projectile fragment separator (RIPS) was obtained so far.
- Published
- 2003