検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

核燃料サイクル施設からの放射能放出に伴う環境$$gamma$$線線量率変動の定量化に関する研究(学位論文)

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

竹安 正則

Takeyasu, Masanori

核燃料サイクル施設からの放射能放出に伴う環境$$gamma$$線線量率の変動の定量化を目的として、再処理施設運転に伴う環境$$gamma$$線線量率変動の準実時間定量化のための計算コード・システム(SIERRA-II)の開発、SIERRA-IIを用いた再処理施設運転に伴う環境$$gamma$$線線量率変動の定量化へ向けた検討、降雨により地表へ降下した雨水中$$^{222}$$Rn壊変生成物濃度の測定と大気中$$^{222}$$Rn壊変生成物降雨洗浄モデルの構築、降雨時に$$^{85}$$Krが放出されたときの環境$$gamma$$線線量率の変動の定量化を行ったものである。本研究により、開発したSIERRA-IIを用いて再処理施設運転時の環境$$gamma$$線線量率の変動を実用的な精度で定量化できることが明らかとなった。

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.

Access

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.