Study on thermal decomposition behavior of sodium hydride with TG-DTA

Kawaguchi, Munemichi

In decommissioning sodium-cooled fast reactors, the thermal decomposition behavior of tritium is important from the viewpoint of reducing the exposed radiation for the operators during dismantling of the cold trap equipment. In this study, the thermal decomposition temperature and rate of sodium hydride (95.3%, Sigma-Aldrich) were estimated from the TG-DTA measurements. The change of the chemical composition for the thermal decomposition was measured with X-Ray Diffraction analysis.

Language	:	Japanese
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Meeting title	:	日本原子力学会2020年春の年会
Held date	:	2020/03
Location (city)	:	福島
Location (country)	:	日本
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Keywords	:	高速炉; 廃止措置; コールドトラップ; 水素化ナトリウム; 熱分解
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Registration No. : BB20191688
JAEA Abstracts No. :
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