Evaluation of charcoal sorbents for helium cryopumping in fusion reactors

Journal Article · Thu Jan 01 00:00:00 EST 1987 · J. Vac. Sci. Technol., A; (United States)

DOI:https://doi.org/10.1116/1.574141· OSTI ID:7054477

Tobin, A G; Sedgley, D W; Batzer, T H; Call, W R

Improved methods for cryopumping helium were developed for application to fusion reactors where high helium generation rates are expected. In this study, small coconut charcoal granules were utilized as the sorbent, and braze alloys and low temperature curing cements were used as the bonding agents for attachment to a copper support structure. Problems of scale-up of the bonding agent to a 40 cm diam panel were also investigated. Our results indicate that acceptable helium pumping performance of braze bonded and cement bonded charcoals can be achieved over the range of operating conditions expected in fusion reactors.

• Research Organization: Grumman Corporation, Bethpage, New York 11714
• OSTI ID: 7054477
• Journal Information: J. Vac. Sci. Technol., A; (United States), Vol. 5:1
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHARCOAL
SORPTIVE PROPERTIES
CRYOPUMPS
PERFORMANCE
HELIUM
PUMPING
THERMONUCLEAR REACTORS
OPERATION
ADSORBENTS
ELEMENTS
EQUIPMENT
FLUIDS
GASES
LABORATORY EQUIPMENT
NONMETALS
PUMPS
RARE GASES
SURFACE PROPERTIES
VACUUM PUMPS
700209* - Fusion Power Plant Technology- Component Development & Materials Testing