US 12,442,583 B2
Bolted joint conduction cooling apparatus for accelerator cavities
Ram Dhuley, Aurora, IL (US)
Assigned to Fermi Forward Discovery Group, LLC, Chicago, IL (US)
Filed by FERMI RESEARCH ALLIANCE, LLC, Batavia, IL (US)
Filed on May 3, 2021, as Appl. No. 17/306,481.
Claims priority of provisional application 63/023,811, filed on May 12, 2020.
Prior Publication US 2021/0356193 A1, Nov. 18, 2021
Int. Cl. F25D 19/00 (2006.01); H05H 7/02 (2006.01); H05H 7/20 (2006.01)
CPC F25D 19/006 (2013.01) [H05H 7/02 (2013.01); H05H 7/20 (2013.01); H05H 2007/025 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for assembling a conduction cooling system comprises:
mounting at least one cooling ring to a cavity;
configuring a conduction link comprising a ring mount configured to engage the cooling ring, a conduction bus, and ear-straps configured to connect the cooling ring to the conduction bus to be joined to the at least one cooling ring with at least one connection assembly comprising a bolt, and a nut; and
selecting materials of the at least one connection assembly to be different from the material of the at least one cooling ring, and the material of the conduction link, wherein the at least one connection assembly experiences greater thermal contraction than the at least one cooling ring and the conduction link when cooled.
 
12. A fast conduction cooling system comprising:
a cryocooler in thermal communication with a conduction cooling apparatus affixed to a cavity via a conduction path; and
a thermal switch in the conduction path between the cryocooler and the conduction cooling apparatus wherein a thermal conductance of the thermal switch decreases as a function of temperature.