论文部分内容阅读
目前,热致发光被用于检验全世界10万多名从事放射性工作的人员每天或每个月所承受的照射量。很可能暴露在α、β或γ射线以及中子辐射下的人员携带的不是人们熟悉的薄膜徽章,而是一个塑料小盒,内有一片或几片LiF、CaSO_4、CaF_2或LiB_4O_7一类热致发光的剂量测定材料。过去,为了读出累积辐射量,必须将薄片从徽章上取下放在加热器上。温度上升至400℃左右时,薄片发射出一定量的可见光,标明剂量大小。用这种传统的加热技术测定热致发光的剂量,有效加热
Currently, luminescence is used to test the daily or monthly exposure of more than 100,000 working radiographers around the world. It is likely that people exposed to α, β or γ-rays and neutron radiation are not familiar with the thin-film badges, but rather a plastic cell containing one or more films of LiF, CaSO 4, CaF 2, or LiB 4 O 7 Luminescent dosimetric material. In the past, in order to read the cumulative amount of radiation, the sheet must be removed from the badge on a heater. The temperature rises to about 400 ℃, the sheet emits a certain amount of visible light, indicating the dose size. Using this traditional heating technique, the thermoluminescent dose is measured and heated efficiently