24th International Workshop on ECR Ion Sources (ECRIS'20)

Improvement of the Cryostat System Performance of 28-Ghz Electron Cyclotron Resonance Ion Source of the Biba by a Radiation Shielding

30 Sept 2020, 08:25

10m

Poster

Speaker

Mi-Sook Won (Korea Basic Science Institute, Busan)

Description

The BIBA (Busan Ion Beam Accelerator) is a compact
linear accelerator facility using the 28 GHz ECRIS at
the KBSI (Korea Basic Science Institute). Our goal is
to generate high current fast neutrons using the
heavy ion interaction with a proton target. For a
stable operation of the superconducting magnets, the
performance of cryostat system is very essential at
the 28 GHz ECRIS. However, the emitted x-ray from
inner plasma chamber contributes to increase an
extra heat load to the cryostat system by absorbing
the cold mass of the superconducting magnet.
Therefore, we have measured X-ray spectra from the
28 GHz ECR ion source and tried to improve the
performance of the Cryostat System by a radiation
shielding. In this paper, we will present the test
results of X-ray emission on 28GHz KBSI ECRIS and
improved cooling system performance.