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 14:
15. An apparatus for ultra-high vacuum (UHV) or extreme high vacuum (XHV), comprising:
two or more overlapping radiation shields within an inner vacuum space of a vacuum chamber, wherein the two or more overlapping radiation shields surround at least a portion of a target thereby blocking a majority of blackbody radiation from reaching the target;
means for reducing a temperature of the first radiation shield to <100K;
means for reducing a temperature of the second radiation shield to <25K;
means for reducing a temperature of the target to <4K, and wherein the means for reducing the temperature of the target is thermally isolated from both of the means for reducing the temperature of the first radiation shield and the means for reducing the temperature of the second radiation shield; and
means for interacting with the target via one or more apertures in the first and second radiation shields.