A study of radon emitted from building materials using plastic α-track detectors
A study of radon emitted from building materials using plastic α-track detectors
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使用塑料 α 径迹探测器研究建筑材料释放的氡气
DOI：
10.1088/0031-9155/25/4/007
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发表时间：
1980
影响因子：
3.5
通讯作者：
R. Bull
中科院分区：
文献类型：
--
作者：
F. Abu;J. Fremlin;R. Bull
由硝酸纤维素LR-115（Pathe Kodak）和CR-39制成的胶片已被用于长期测量建筑材料散发的氡-222及其在房屋内的放射性。从粉碎花岗岩砖的发散被发现是从砖内产生的，而在粘土砖，它起源于表面层。在用粘土砖建造的房屋内，空气中的氡活度平均为22 mBq 1-1（0.57 pCi 1-1），而在密封在砖上的密闭容器内，平均平衡活度为40 mBq 1-1 pCi 1-1）。
Films made from cellulose nitrate LR-115 (Pathe Kodak) and CR-39 have been used for long-term measurements of the radon-222 emanation from building materials and the resultant activity inside houses. The emanation from crushed granite bricks is found to be produced from within the brick while in the clay bricks it originates in the surface layers only. The airborne radon activity inside houses constructed from clay brick is found on average to be 22 mBq 1-1 (0.57 pCi 1-1) while inside a closed vessel sealed to the brick the average equilibrium activity is 40 mBq 1-1 pCi 1-1).