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NRC wants input on Hermes 2 test reactor construction permit
The Nuclear Regulatory Commission is seeking input on its draft environmental assessment and draft finding of no significant impact for Kairos Power’s application to build the Hermes 2 test reactor facility in Oak Ridge, Tenn.
Alexander I. Livshits, Yuji Hatano, Kuniaki Watanabe
Fusion Science and Technology | Volume 41 | Number 3 | May 2002 | Pages 882-886
Material Interaction and Permeation | Proceedings of the Sixth International Conference on Tritium Science and Technology Tsukuba, Japan November 12-16, 2001 | doi.org/10.13182/FST02-A22711
Articles are hosted by Taylor and Francis Online.
Superpermeable membranes based on Group Va metals can be applied in fusion devices for a short way separation of D/T mixtures from He, for an active control of particle fluxes and as a general-purpose D/T pump that may be used in particularly in tritium handling systems. Superpermeable membranes being used for D/T separation from helium are able to drastically reduce the tritium load on the He pump (cryopump), while tritium accumulation in the membrane itself does not exceed a few g for a machine of ITER scale. A possible way to decrease the tritium inventory in the membrane is to combine a higher dissociative barrier at the upstream surface with the operation at higher temperature. Compression of permeating D/T attainable with superpermeable membranes is totally determined by the sticking coefficient of thermal hydrogen molecules at the upstream surface. The degree of compression has a significant effect on the tritium inventory and the inventory dependence on the state of the downstream surface.1 Permanent address: Bonch-Bruyevich University, 61 Moika, St. Petersburg 191186, Russia