Energy emission by -ray from actinides in various types of spent fuels

Morita, Yasuji ; Tsubata, Yasuhiro

Energy emission by -ray from actinides was evaluated for various types of spent fuels (SF) to compare absorbed doses of solvents by -ray in extraction process. The spent fuels evaluated in the present study were LWR UO $_{2}$ fuel, LWR MOX fuel, FBR fuel with U and Pu (FBR(Pu)) and FBR fuel with MA recycle (FBR(MA)). When the solvent contains 0.4 M of U and Pu as the total concentration, the adsorbed dose rate of the solvent by -ray from the extracted U and Pu was 0.016 Gy/s for LWR UO $_{2}$ fuel cooled for 5 years. The dose rate for LWR-MOX, FBR(Pu) and for FBR(MA) was 6.4 times, 16.4 times and 15.8 times higher than that for LWR-UO $_{2}$ , respectively. The absorbed dose rate of the solvent which contains Am, Cm and rare earth elements with the total concentration of 0.04 M was 0.071 Gy/s for 5-year cooled LWR-UO $_{2}$ and 0.74 Gy/s for LWR-MOX.

Language	:	English
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Meeting title	:	3rd RRTD International Workshop on Development of Spent Fuel Management for increasing Nuclear Power Plants Rapidly
Held date	:	2006/12
Location (city)	:	Fukuoka
Location (country)	:	Japan
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Keywords	:	no keyword
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Registration No. : BB20062469
JAEA Abstracts No. :
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