Progress on the Liquid Hydrogen Absorber for the Mice Cooling Channel
Progress on the Liquid Hydrogen Absorber for the Mice Cooling Channel
复制标题
小鼠冷却通道液氢吸收剂的研究进展
DOI：
10.1109/pac.2005.1590908
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
S. Ishimoto
中科院分区：
文献类型：
--
作者：
M. Cummings;S. Ishimoto
本文介绍了国际μ子电离冷却实验（MICE）液氢吸收器的设计进展。吸收器由一个21升的容器组成，其中装有液氢（1.5公斤）或液氦（2.63公斤）。致冷剂容器位于用于MICE的超导聚焦磁体的暖孔内。磁体的目的是在吸收器内提供近光β区域。出于安全原因，用于氢吸收器的真空容器与用于超导磁体的真空容器以及围绕RF腔或检测器的真空分离。吸收器有两个直径为300 mm的薄铝窗。吸收器周围的真空容器具有一对薄铝窗，其将吸收器真空空间与相邻的真空空间分开。吸收器将使用内置于吸收器壁中的热交换器进行冷却。用液氮将吸收塔冷却到80 K。液氦完成吸收器的冷却，并在吸收器中冷凝氢气。吸收器也可以填充有液氦以测量氦中的μ子冷却。
This report describes the progress made on the design of the liquid hydrogen absorber for the international Muon Ionization Cooling Experiment (MICE). The absorber consists of a 21-liter vessel that contains liquid hydrogen (1.5 kg) or liquid helium (2.63 kg). The cryogen vessel is within the warm bore of the superconducting focusing magnet for MICE. The purpose of the magnet is to provide a low beam beta region within the absorber. For safety reasons, the vacuum vessel for the hydrogen absorber is separated from the vacuum vessel for the superconducting magnet and the vacuum that surrounds the RF cavities or the detector. The absorber has two 300 mm-diameter thin aluminum windows. The vacuum vessel around the absorber has a pair of thin aluminum windows that separate the absorber vacuum space from adjacent vacuum spaces. The absorber will be cooled using a heat exchanger that is built into the absorber walls. Liquid nitrogen is used to cool the absorber to 80 K. Liquid helium completes the absorber cool down and condenses hydrogen in the absorber. The absorber may also be filled with liquid helium to measure muon cooling in helium.