Study on the determination of the variation of environmental gamma-ray dose rate due to radioactivity discharged from nuclear fuel cycle facility (Thesis)

Takeyasu, Masanori

The following studies were carried out with the purpose that the variation of environmental gamma-ray dose rate was determined due to radioactivity released from nuclear fuel cycle facility; Development of calculation code system (SIERRA-II) in order to determine in quasi-real time the variation of environmental gamma-ray dose rate due to the operation of reprocessing facility, examination for determining the variation of the dose rate during the operation using SIERRA-II, measurement of the concentration of $^{222}$ Rn decay products in rainwater, and construction of the wet scavenging model for the atmospheric $^{222}$ Rn decay products, determination of the variation of environmental gamma-ray dose rate due to the released $^{85}$ Kr during rainfall. By these studies, it became clear that the developed SIERRA-II could determined the variation of environmental gamma-ray dose rate during the operation of reprocessing plant with practical accuracy.

Language	:	Japanese
Report No.	:	JAEA-Review 2013-016
Pages	:	92 Pages
Publication Year/Month	:	2013/07
Patent information	:
PDF	:	JAEA-Review-2013-016.pdf:3.65MB
Paper URL	:	https://doi.org/10.11484/jaea-review-2013-016
Keywords	:	no keyword
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Registration No. : RV20130016
JAEA Abstracts No. : 41000987

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