公开(公告)号：US20230271105A1

公开(公告)日：2023-08-31

申请号：US18136733

申请日：2023-04-19

申请人： 1372934 B.C. Ltd.

发明人： Jacob Craig Petroff ,  Richard G. Harris

IPC分类号： B01D8/00 ,  F25B9/14 ,  F25B9/12 ,  F25D19/00 ,  F25B9/10

CPC分类号： B01D8/00 ,  F25B9/10 ,  F25B9/12 ,  F25B9/145 ,  F25D19/006

摘要： Systems and methods for improving the performance of dilution refrigeration systems are described. Filters and traps employed in the helium circuit of a dilution refrigerator may be modified to improve performance. Some traps may be designed to harness cryocondensation as opposed to cryoadsorption. A cryocondensation trap employs a cryocondensation surface having a high thermal conductivity and a high specific heat with a binding energy that preferably matches at least one contaminant but does not match helium. Multiple traps may be coupled in series in the helium circuit, with each trap designed to trap a specific contaminant or set of contaminants. Both cryocondensation and cryoadsorption may be exploited among multiple traps.