Construction of the Rare-RI Ring at RIKEN RI Beam Factory

Abstract

We are constructing an isochronous storage ring named “Rare-RI Ring (R3)” at RIKEN RI Beam Factory. R3 is the most favorable equipment for measuring the mass of rare-RIs in a precision of the order of ppm by using the relative TOF measurement method. Recently, we carried out a commissioning run using ⁷⁸Kr beam and the basic performances of R3 were verified. In this article, we describe the history of the past, the results of the commissioning run, and future prospects.