Experimental Investigations into Cryosorption Pumping of Plasma Exhaust: Status Report
Fusion Science and Technology / Volume 14 / Number 2P2A / September 1988 / Pages 541-545
Tritium Processing / Proceedings of the Third Topical Meeting on Tritium Technology in Fission, Fusion and Isotopic Applications (Toronto, Ontario, Canada, May 1-6, 1988) / dx.doi.org/10.13182/FST88-A25189
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Within the framework of the European Fusion Technology Programme the Karlsruhe Nuclear Research Centre has been awarded a contract for the development of cryosorption panels for compound cryopumps of the NET plasma exhaust pumping system. This task includes the development of a bonding technique for porous sorbent materials with metal substrates and a test programme for development and optimization of cryopanels. A variety of material combinations for sorbent, bonding and substrate were evaluated and listed in a test matrix. Bonding tests involving soldering, cementing and plasma spraying techniques have been carried out. About 300 sorption specimens have been prepared. The resistance to thermal stress of the sorbent / substrate bond has been studied in thermal cycling tests.
