Emergency EPR dosimetry technique using vacuum-stored dry nails.
Emergency EPR dosimetry technique using vacuum-stored dry nails.
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DOI：
10.1016/j.radmeas.2016.02.014
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发表时间：
2016-05-01
影响因子：
2
通讯作者：
McKeever SW
中科院分区：
文献类型：
--
作者：
Sholom S;McKeever SW
用x波段EPR技术测试了人类手指和脚趾甲在不同条件下的储存情况。在g=2.005处的主辐射诱导信号表现出良好的稳定性。基于这一现象，提出了一种新的方案，将钉子作为应急EPR剂量计。在实验室暴露的样品上对剂量测定方案进行了测试，结果表明能够恢复0-10戈瑞区域的剂量，对于< 2戈瑞范围的剂量，估计不确定度约为0.3-0.4戈瑞，对于5-10戈瑞范围的剂量，不确定度增加到0.6-0.7戈瑞。
Human finger- and toenails have been tested with an X-band EPR technique for different conditions of nail storage. The main radiation-induced signal at g=2.005 demonstrated good stability if the samples were stored in a vacuum at room temperature after nail harvesting and irradiation. On the basis of this phenomenon, a new protocol is proposed to use the nails as possible emergency EPR dosimeters. The dosimetry protocol was tested on laboratory-exposed samples and demonstrated the ability to recover doses in the region 0-10 Gy with an estimated uncertainty of approximately 0.3-0.4 Gy for doses in the range < 2 Gy, increasing to 0.6-0.7 Gy for doses in the range 5-10 Gy.