DECONTAMINATION METHOD AND DEVICE FOR TRITIUM-CONTAMINATED METAL

PROBLEM TO BE SOLVED: To provide a decontamination method and a device for a tritium-contaminated metal having safety, simplicity, easy-handleability necessary for removing solution tritium. SOLUTION: A metal material including tritium is stored in a hot air furnace 10 for generating temperature-con...

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Bibliographic Details
Main Authors MISUMI MASAHIRO, HIRATA SHINGO, FURUTA YUJI, YAMAZAKI SEIICHIRO, KANAI KAZUKI
Format Patent
LanguageEnglish
Published 30.09.2004
Edition7
Subjects
DECONTAMINATION ARRANGEMENTS THEREFOR
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
PHYSICS
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT
TREATING RADIOACTIVELY CONTAMINATED MATERIAL
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Summary:PROBLEM TO BE SOLVED: To provide a decontamination method and a device for a tritium-contaminated metal having safety, simplicity, easy-handleability necessary for removing solution tritium. SOLUTION: A metal material including tritium is stored in a hot air furnace 10 for generating temperature-controllable circulating hot air. Firstly, tritium adhering to/adsorbed on the material surface is purged by heating it with the hot air below 200°C. Secondly, the solution tritium is purged to recovery tritium by heating it with the hot air raised from 200 to 600°C and keeping the state. After elapse of a sufficient release time, the hot air furnace 10 is cooled down to 100°C or below to release tritium, and the metal material having the internal tritium concentration lowered to a safe level is taken out. COPYRIGHT: (C)2004,JPO&NCIPI
Bibliography:Application Number: JP20030058192