【摘要】：UO2芯塊的輻射特性以α輻射為主,裝載燃料芯塊或燃料組件的貨包其外部γ輻射水平一般在μSv水平。通常認(rèn)為即使在芯塊裸露狀態(tài)下對(duì)事故處理人員帶來(lái)的有效劑量也是較低的。但對(duì)鈾同位素及子體在衰變過(guò)程中發(fā)射的β射線和單能電子所產(chǎn)生的弱貫穿輻射卻一直未引起足夠重視。本文采用不同蒙卡計(jì)算程序估算了直接接觸和佩戴手套接觸芯塊所受的劑量,并結(jié)合某芯塊運(yùn)輸實(shí)例進(jìn)行了事故工況的弱貫穿輻射影響評(píng)價(jià),亦可作為開(kāi)展相關(guān)輻射防護(hù)優(yōu)化之借鑒。
[Abstract]:The radiation characteristics of UO2 pellets are mainly 偽 radiation. The external 緯 radiation level of packages loaded with fuel pellets or fuel assemblies is generally at 渭 Sv level. It is generally considered that the effective dose to the accident handler is low even when the pellet is exposed. However, the weak penetrating radiation produced by the 尾-ray and single energy electrons emitted by uranium isotopes and their daughters during decay has not been paid enough attention to. In this paper, the dose of direct contact and glove contact pellets is estimated by using different Monka calculation programs, and the impact assessment of weak penetrating radiation under accident condition is carried out in combination with an example of pellet transportation. It can also be used as a reference for optimization of radiation protection.
【作者單位】： 中國(guó)輻射防護(hù)研究院;上海應(yīng)用物理研究所;
【分類(lèi)號(hào)】：TL73

【共引文獻(xiàn)】

相關(guān)期刊論文 前10條

1 閆永宏;魏來(lái);溫賢倫;吳玉遲;趙宗清;張博;朱斌;洪偉;曹磊峰;姚澤恩;谷渝秋;;Calibration and Monte Carlo simulation of a single-photon counting charge-coupled device for single-shot X-ray spectrum measurements[J];Chinese Optics Letters;2013年11期

2 劉星;曹學(xué)香;李公平;魏龍;，

本文編號(hào)：2153324