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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.
Hiroshi Takeda
Fusion Science and Technology | Volume 28 | Number 3 | October 1995 | Pages 964-969
Tritium Safety | 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-A30530
Articles are hosted by Taylor and Francis Online.
A series of experimental investigations in rats on metabolism and dosimetry of tritium in various chemical forms(water, amino acids, monosaccharide, fatty acids and nucleoside) have been performed in our laboratory. Based on these experimental results, the relative radiotoxicity of each tritiated compound was assessed. An average radiation dose to various tissues was used as an index to assess their relative radiotoxicity. The average doses were, respectively, higher by a factor of 2.3 – 5.2 for tritiated amino acids, 1.4 – 3.2 for tritiated fatty acids, 1.3 for tritiated glucose, 1.7 for tritiated thymidine, than those from tritiated water. Thus, it was estimated that the tritiated organic compounds is about 1.3 to 5.2 times more radiotoxic than tritiated water. From the result of present study, we propose that an Annual Limit on Intake(ALI) for organic tritium should be 5 times smaller than that for tritiated water currently recommended by the ICRP.