System for liquefying or freezing xenon

Details System for liquefying or freezing xenon System for liquefying or freezing xenon

2006-11-21

2006-11-21

Doerrler, William C. (Department: 3744)

Refrigeration

Cryogenic treatment of gas or gas mixture

Solidification

C062S606000

Reexamination Certificate

active

07137274

ABSTRACT:
Apparatus for producing liquid or solid xenon comprises a duct12having an inlet14for receiving gaseous xenon and an outlet16for outputting gaseous xenon at a reduced temperature to a nozzle located in a vacuum chamber60. A housing18extends about the duct and contains a halocarbon coolant in thermal contact with the duct, and a second duct24in thermal contact with the halocarbon coolant for conveying a flow of liquid nitrogen through the housing18to control the temperature of the halocarbon. In view of the difference in the pressure of the xenon gas output from the duct and the pressure in the chamber, the thus-cooled gas is caused to liquefy or solidify in the vicinity of the nozzle.

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