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College students help develop waste-measuring device at Hanford
A partnership between Washington River Protection Solutions (WRPS) and Washington State University has resulted in the development of a device to measure radioactive and chemical tank waste at the Hanford Site. WRPS is the contractor at Hanford for the Department of Energy’s Office of Environmental Management.
V. V. Kirsanov
Fusion Science and Technology | Volume 28 | Number 3 | October 1995 | Pages 1200-1204
Tritium Properties and Interaction with Material | Proceedings of the Fifth Topical Meeting on Tritium Technology In Fission, Fusion, and Isotopic Applications Belgirate, Italy May 28-June 3, 1995 | doi.org/10.13182/FST95-A30572
Articles are hosted by Taylor and Francis Online.
Simultaneous effects of radiation induced defects and gas atoms of various types in the near surface layers of the first wall material of a fusion reactor produced rather intricate pictures of their interaction and diffusion. This work describes our attempt, by using computer simulation methods, to look into He and H interaction reactions with radiation - induced vacancies and interstitial atoms, to determine the more movable defect formations that are responsible for gas migration. More movable mixed helium-vacancy cluster is discovered (H+2V). Reactions of pushing out helium from substitutional position by self - interstitial atom as well as hydrogen by helium atom which has come to it have been discovered. It is shown that the latter reaction pointing out the possible competition between He and H, while occupying vacancy trap, can cause He permeability reduction compared to hydrogen permeability, that is to supposed affect gas porosity formation.