Cool-down test of HWR cryomodule for RAON

IF 0.2 Q4 PHYSICS, APPLIED

Progress in Superconductivity and Cryogenics Pub Date : 2015-12-31 DOI:10.9714/PSAC.2015.17.4.043

Youngkwon Kim, M. K. Lee, Y. W. Jo, J. Choi, Hyobong Kim, W. Kim, Hyungjun Kim

引用次数: 0

Abstract

The heavy ion accelerator that will be built in Daejeon utilizes four types of superconducting cavities. Cryomodules holding the superconducting cavities in them supply thermal insulation for cavities operating in 4.3 K or 2.1 K. A Prototype of cryomodule which holds two HWR (Half Wave Resonator) cavities was fabricated and tested. Since the operating temperature of the HWR is 2.1 K, the superfluid helium was generated with warm vacuum pumping system. The cyromodule was successfully cooled down below lambda point temperature of helium and any detectable leak was not observed during the test. The static thermal load at 4.2 K was measured. The result and the experience for the cool-down below lambda point of helium are reported in this paper.

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用于RAON的HWR低温模块冷却试验

将在大田建设的重离子加速器利用4种超导腔。含有超导腔的低温模组为工作在4.3 K或2.1 K的腔提供隔热。制作了一个包含两个半波谐振腔的低温模块原型并进行了测试。由于HWR的工作温度为2.1 K，因此采用热真空抽气系统产生超流氦。cyromodule被成功地冷却到低于氦的λ点温度，并且在测试期间没有观察到任何可检测的泄漏。测量了4.2 K时的静态热负荷。本文报道了氦在λ点以下冷却的结果和经验。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Progress in Superconductivity and Cryogenics PHYSICS, APPLIED-

CiteScore

0.40

自引率

33.30%

发文量

期刊介绍： Progress in Superconductivity and Cryogenics is the official publication of The Korea Institute of Applied Superconductivity and Cryogenics and the Korean Superconductivity Society. It was launched in 1999, and accepts original research articles and review papers on research on superconductivity and related fields of physics, electronic devices, materials science, large-scale applications for magnets, power and energy, and cryogenics. The Journal is published quarterly in March, June, September, and December each year. Supplemental issues are published occasionally. The official title of the journal is ''Progress in Superconductivity and Cryogenics'' and the abbreviated title is ''Prog. Supercond. Cryog.'' All submitted manuscripts are peer-reviewed by two reviewers. The text must be written in English. All the articles in this journal are KCI and SCOPUS as of 2015. The URL address of the journal is http://psac.kisac.org where full text is available. This work was supported by the Korean Federation of Science and Technology Societies grant funded by the Korea government.