Roman-Lopez J, Piña López Y I, Cruz-Zaragoza E, Marcazzó J
CONACYT-Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, A.P.70-543, 04510 Ciudad de México, México.
Facultad de Ciencias, Universidad Nacional Autónoma de México, 04510 Ciudad de México, México.
Appl Radiat Isot. 2018 Aug;138:60-64. doi: 10.1016/j.apradiso.2017.05.001. Epub 2017 May 3.
In this work, the continuous wave - optically stimulated luminescence (CW-OSL) emissions of natural salt minerals, collected from Dead Sea in summer of 2015, were studied. The CW-OSL dose response of natural salt showed a linear range between 0.5Gy and 10Gy of gamma radiation of Co. Samples exposed at 3Gy exhibited good repeatability with a variation coefficient of 4.6%. The CW-OSL response as function of the preheating temperature (50-250°C) was analyzed. An increase of 15% of the CW-OSL response was observed in NaCl samples during storage period of 336h. The results showed that the natural Dead Sea salt minerals could be applied as natural dosimeter of gamma radiation.
在这项工作中，对2015年夏季从死海采集的天然盐矿的连续波 - 光激发发光（CW - OSL）发射进行了研究。天然盐的CW - OSL剂量响应在钴源γ辐射0.5Gy至10Gy之间呈现线性范围。在3Gy照射下的样品具有良好的重复性，变异系数为4.6%。分析了CW - OSL响应随预热温度（50 - 250°C）的变化情况。在336小时的储存期内，观察到氯化钠样品的CW - OSL响应增加了15%。结果表明，天然死海盐矿可作为γ辐射天然剂量计。
