A new 2 Kelvin Superconducting Half-Wave Cavity Cryomodule for PIP-II

[摘要] Argonne National Laboratory has developed and is implementing a novel 2 K superconducting cavity cryomodule operating at 162.5 MHz. This cryomodule is designed for the acceleration of 2 mA H-/proton beams from 2.1 to 10 MeV as part of the Fermilab Proton Improvement Project-II (PIP-II). This work is an evolution of techniques recently implemented in two previous heavy-ion accelerator cryomodules now operating at Argonne National Laboratory. The 2 K cryomodule is comprised of 8 half-wave cavities operated in the continuous wave mode with 8 superconducting magnets, one in front of each cavity. All of the solenoids and cavities operate off of a single gravity fed 2 K helium cryogenic system expected to provide up to 50 W of 2 K cooling. Here we review the mechanical design of the cavities and cryomodule which were developed using methods similar to those required in the ASME Boiler and Pressure Vessel Code. This will include an overview of the cryomodule layout, the alignment of the accelerator components via modifications of the cryomodule vacuum vessel and provide a status report on the cryomodule assembly.

[发布机构] Argonne National Laboratory, 9700 S. Cass Ave., Argonne; IL; 60439, United States^1;Fermi National Accelerator Laboratory, P.O. Box 500, Batavia; IL; 60510, United States^2;TechSource, Inc., 1475 Central Ave., Los Alamos; NM; 87544, United States^3

[效力级别] 物理学 [学科分类] 材料科学（综合）

[关键词] Argonne National Laboratory;Boiler and Pressure Vessel Code;Continuous wave modes;Cryogenic system;Heavy-ion accelerator;Mechanical design;Superconducting cavities;Vacuum vessel