Thermal Design and Performance results of the first High-Beta Cryo-module for HIE-ISOLDE at CERN

[摘要] The High Energy and Intensity HIE-ISOLDE is a facility under construction at CERN whose target is ultimately, after the installation of six cryo-modules, to produce radioactive ion beams at 10MeV/u maximum energy in order to significantly expand the nuclear physics programme carried out by REX-ISOLDE. Since thermal control is essential to the performance of the whole cryo-module, a combination of a passive (materials, coatings, and surface finishes) and active (cryogenic loops, heaters) control has been designed to keep the cryostat operating within the allowable thermal budget. A numerical model based on Finite Element has been developed in order to generate a faithful global mapping of temperatures and heat fluxes inside the cryo-module. The numerical model, combined with the experimental results of the first test campaign, will serve as an optimization tool for the future cryo-modules in terms of improvement in the global and specific heat loads management.

[发布机构] CERN, Geneva 23; CH-1211, Switzerland^1

[效力级别] 物理学 [学科分类] 材料科学（综合）

[关键词] Global mapping;Optimization tools;Radioactive ion beams;Surface finishes;Test campaign;Thermal budget;Thermal control;Thermal designs