摘要
本文提出了用平衡的观点研究辐射水平变化的必要性，人为活动可以导致居民所受辐射剂量的增加，也可使居民所受剂量减少。中国居民在１９８８年，乘飞机使所受集体剂量增加３．６×１０￣１人．Ｓｖ，但乘轮船、火车和汽车则使集体剂量减少５．３６×１０￣２人·Ｓｖ；居住在石煤渣砖的建筑中使集体剂量增加３．５×１０￣３人·Ｓｖ，但居住在混凝土建筑物中则使集体剂量减小３．７×１０￣３人·Ｓｖ。为了全面研究环境辐射水平的变化，仅研究可能引起辐射水平增高的人为活动是不够的。
The necessity of studying the variations in radiation levels from the balance view-point is discussed. Some human activities may increase, while others may decrease, radiationdose to population. In 1988,China's investigation showed that travel by air caused a raise ofpopulation collective dose by 3.6 × 10￣1 man·Sv, while travel by ship, train and vehicle leadto a drop of 5. 36×10￣2 man·Sv, and that dweliings of coal cinder brick decreased collectivedose by 3.5 × 10￣3 man·Sv, while buildings of reinforced concrete structure increased collective dose by 3.7×10￣3 man·Sv. It is inadequate to only study those activities which may increase radiation levels.
出处
《辐射防护》
CAS
CSCD
北大核心
1994年第3期161-165,共5页
Radiation Protection
