STABLE OPERATION OF RF SYSTEMS FOR RIBF
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Abstract
At RIKEN RI-Beam Factory (RIBF), very heavy ion
beams like uranium are accelerated up to 345 MeV/u by
the RIKEN heavy ion linac (RILAC) and four ring cyclotrons,
the RIKEN Ring Cyclotron (RRC), the fixedfrequency
ring cyclotron (fRC), the intermediate-stage
ring cyclotron (IRC), and the superconducting ring cyclotron
(SRC) [1]. In order to provide high intensity beams
up to 1 pμA, all the RF systems must be stable enough for
a long term (a few weeks) within ± 0.1% in voltages and
±0.1 degrees in phases. For a stable operation of RIBF, we
have started to investigate a degree of stability of the RF
systems using a newly developed monitoring system [2].
The efforts to improve the stability will be described.IMP;Chinese Academy of Science