The BIBA (Busan Ion Beam Accelerator) is a compact linear accelerator facility using the 28 GHz ECRIS (Electron Cyclotron Resonance Ion Source) at the KBSI (Korea Basic Science Institute). The superconducting magnets of the 28 GHz ECRIS produce high magnetic fields for strong confinement of plasmas in an ion source chamber. For stable operation of the superconducting magnets, performance of cryostat system is very essential. However, the cryostat system produces significant quantities of the heating due to conduction from room temperature. In addition, part of the X-ray radiation produced by the collisions of the electrons within the ion source chamber is absorbed by the cold mass of the superconducting magnet, leading to an additional heat load in the cryostat system. In this paper, a study on the performance of the cryostat system for 28 GHz ECRIS is performed to improve the cooling efficiency of the cryostat system.

中文翻译：

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韩国基础科学研究所 28 GHz 电子回旋共振离子源低温恒温器系统性能研究

BIBA（釜山离子束加速器）是使用 KBSI（韩国基础科学研究所）的 28 GHz ECRIS（电子回旋共振离子源）的紧凑型直线加速器设施。28 GHz ECRIS 的超导磁体产生强磁场，以强约束离子源室中的等离子体。为了使超导磁体稳定运行，低温恒温器系统的性能至关重要。然而，低温恒温器系统由于从室温传导而产生大量热量。此外，离子源室内电子碰撞产生的部分 X 射线辐射被超导磁体的冷物质吸收，导致低温恒温器系统中的额外热负荷。在本文中，