Science. 1962 Oct 12;138(3537):145-6. doi: 10.1126/science.138.3537.145.
In a study of selected regions of high background radiation in Brazil, thallium-activated NaI crystals were used as density amplifiers for dosimeter film badges. Calibration experiments were made, and the field results are summarized.
在对巴西高本底辐射区进行的一项研究中,铊激活碘化钠晶体被用作剂量计胶片徽章的密度放大器。进行了校准实验,并总结了现场结果。