Q-band electron paramagnetic resonance dosimetry in tooth enamel: biopsy procedure and determination of dose detection limit
Q-band electron paramagnetic resonance dosimetry in tooth enamel: biopsy procedure and determination of dose detection limit
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牙釉质中的 Q 波段电子顺磁共振剂量测定：活检程序和剂量检测限的确定
DOI：
10.1007/s00411-013-0511-8
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发表时间：
2014
影响因子：
1.7
通讯作者：
R. Reyes
中科院分区：
文献类型：
--
作者：
A. Romanyukha;F. Trompier;R. Reyes
高频q波段（37 GHz）电子顺磁共振（EPR）剂量测定允许使用牙釉质微型活检程序获得的样品进行快速（即测量时间<15分钟）剂量测量。我们开发并测试了一种新的程序，用于进行牙釉质活检以进行此类剂量测量。最近使用牙釉质微型探针在q波段进行EPR剂量测量的经验表明，可以从辐射事故的受害者身上快速获得少量牙釉质（2-10毫克）。可以在很短的时间内进一步进行准确的剂量评估，为医疗提供重要信息。在这里，估计5和10 mg样品的q波段EPR剂量检测限分别为367和248 mGy。这些值与牙釉质常规x波段EPR测定的关键参数相当。
High-frequency Q-band (37 GHz) electron paramagnetic resonance (EPR) dosimetry allows to perform fast (i.e., measurement time <15 min) dose measurements using samples obtained from tooth enamel mini-biopsy procedures. We developed and tested a new procedure for taking tooth enamel biopsy for such dose measurements. Recent experience with EPR dose measurements in Q-band using mini-probes of tooth enamel has demonstrated that a small amount of tooth enamel (2–10 mg) can be quickly obtained from victims of a radiation accident. Accurate dose assessments can further be carried out in a very short time to provide important information for medical treatment. Here, the Q-band EPR dose detection limit for 5 and 10 mg samples is estimated to be 367 and 248 mGy, respectively. These values are comparable to the critical parameters determined for conventional X-band EPR in tooth enamel.