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Title: Performance of BNL-TSTA compound cryopump

Journal Article · · J. Vac. Sci. Technol.; (United States)
DOI:https://doi.org/10.1116/1.570855· OSTI ID:6361179

The Tritium Systems Test Assembly Vacuum Facility at Los Alamos Scientific Laboratory is intended to demonstrate realistic fuel supply and cleanup operations similar to those anticipated on fusion devices. The plasma exhaust gases are expected to be mixtures of helium and hydrogen isotopes which can be pumped most efficiently by cryopumping. A compound cryopump for on-line operation at TSTA using cryocondensation for hydrogen isotopes and cryosorption for helium has been designed by BNL and fabricated by Janis Research. The details of this compound cryopump are described in this paper. The performance of the pump during the pre-delivery testing at BNL, such as the heat load during operation and the pumping speed and pump capacity for helium and hydrogen, are also discussed in detail.

Research Organization:
Accelerator Department, Brookhaven National Laboratory, Upton, New York 11973
DOE Contract Number:
DE-ACOZ-76 CH00016
OSTI ID:
6361179
Journal Information:
J. Vac. Sci. Technol.; (United States), Vol. 18:3
Country of Publication:
United States
Language:
English