Patent ID: 11946598
Assignee: THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 9:
10. A method for ultra-high vacuum (UHV) or extreme high vacuum (XHV), comprising:
providing two or more overlapping radiation shields within an inner vacuum space of a vacuum chamber, the two or more overlapping radiation shields covering at least 90% 4π steradians around a target;
thermally coupling a first cooling element unit to a first of the two or more overlapping radiation shields;
thermally coupling a second cooling element unit to a second of the two or more overlapping radiation shields;
thermally coupling a third cooling element unit to the target, the third cooling element unit thermally isolated from the first and second radiation shields;
cooling the first radiation shield to <100K;
cooling the second radiation shield to <25K;
cooling the target to <4K; and
interacting an elongated tool with the target through one or more apertures in the first and second radiation shields, while maintaining the at least 90% 4π steradians coverage around the target.