Study on electron spin resonance dosimetry of dog tooth enamel

JIAO Ling; ZHANG Wenyi; DING Yanqiu; QU Ximei; WANG Liqin; WANG Caixia; BAI Guilin

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Study on electron spin resonance dosimetry of dog tooth enamel

更新时间：2023-03-27

- Study on electron spin resonance dosimetry of dog tooth enamel
- Journal of Radiation Research and Radiation Processing Vol. 29, Issue 4, Pages: 254-256(2011)
- 作者机构：
  
  1.中国医学科学院放射医学研究所　天津分子核医学重点实验室　天津　300192
  2.内蒙古自治区锡林郭勒盟疾病预防控制中心　锡林浩特市　026005
- 作者简介：
- 基金信息：
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JIAO Ling, ZHANG Wenyi, DING Yanqiu, et al. Study on electron spin resonance dosimetry of dog tooth enamel. [J]. Journal of Radiation Research and Radiation Processing 29(4):254-256(2011)
DOI：

JIAO Ling, ZHANG Wenyi, DING Yanqiu, et al. Study on electron spin resonance dosimetry of dog tooth enamel. [J]. Journal of Radiation Research and Radiation Processing 29(4):254-256(2011) DOI：

摘要

对4组狗牙釉质样品分别进行不同剂量,137,Cs γ射线的照射。使用电子自旋共振（Electron spin resonance，ESR）谱仪测量所有样品照射前的ESR固有信号强度，根据照射不同剂量后的ESR信号强度，研究不同剂量的γ射线照射后狗牙釉质所产生的ESR信号强度的变化。结果表明，,137,Cs γ射线照射前，狗牙釉质的ESR固有信号平均值为20.8±2.9，明显低于人的39.5；狗牙釉质照射后产生的剂量学信号强度随着照射吸收剂量而线性增强，每个样品质量为100 mg，其ESR剂量学峰的辐射响应为（37.1±2.1）Gy,-1,，与人牙釉质样品的辐射响应的平均值36.3 Gy,-1,非常接近。所以当人类牙釉质样品缺乏时，可以用相同辐射环境中的狗牙釉质作为替代品，进行剂量重建。

Abstract

Four groups dog tooth enamel samples were irradiated with different dose by ,137,Cs γ-rays. Their electron spin resonance (ESR) spectra pre- and post-irradiated were measured and the changes of ESR signal intensities were analyzed. The results showed that the average intensity of native signals of dog tooth samples was 20.8±2.9, much weaker than that of human 39.5; the dosimetric signal intensities of dog tooth enamel increased with the absorbed doses; the mass of each sample is 100 mg. The average irradiation response of dog tooth enamel samples was (37.1±2.1) Gy,-1, very close to that of human tooth samples (36.3 Gy,-1,). The dog tooth can be used for retrospective dosimetry when human tooth are difficult to collect.

关键词

γ射线狗牙釉质电子自旋共振剂量学剂量重建

Keywords

γ-raysDog tooth enamelElectron spin resonance (ESR)DosimetryDose Reconstruction

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