- 著者
-
Ozawa A.
Uesaka T.
Wakasugi M.
- 出版者
- Oxford University Press
- 雑誌
- Progress of theoretical and experimental physics (ISSN:20503911)
- 巻号頁・発行日
- vol.2012, no.1, pp.03C009, 2012-12
- 被引用文献数
-
55
We describe the rare-RI (radioactive isotope) ring at the RI Beam Factory (RIBF). The main purpose of the rare-RI ring is to measure the mass of very neutron-rich nuclei, the production rates of which are very small (hence ‘rare RI’) and the lifetimes of which are predicted to be very short. In the rare-RI ring, there are two innovative pieces of apparatus: individual injection, which can realize the injection of 200 A MeV rare RIs one by one, and a cyclotron-like storage ring, which allows high isochronous magnetic fields with large angular and momentum acceptances. With these devices, we will achieve a 10−6 mass resolution, and will be able to access rare RIs, the production rate of which is down to 1 event/day/pnA. Construction of the rare-RI ring started in fiscal year 2012.