| 张文艺,焦玲,潘志红,等.不同制备方法对牙釉质样品ESR信号的影响[J].中华放射医学与防护杂志,2005,25(3):283-285.ZHANG Wen_yi,JIAO Ling,PAN Zhi_hong,et al.Influences of different sample preparation methods on tooth enamel ESR signals[J].Chin J Radiol Med Prot,2005,25(3):283-285 |
| 不同制备方法对牙釉质样品ESR信号的影响 |
| Influences of different sample preparation methods on tooth enamel ESR signals |
| 投稿时间：2004-05-24 |
| DOI： |
| 中文关键词: 电子自旋共振 牙釉质 样品制备 灵敏度 剂量学 |
| 英文关键词:ESR Tooth enamel Sample preparation Sensitivity Dosimetry |
| 基金项目: |
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| 摘要点击次数: 3799 |
| 全文下载次数: 1956 |
| 中文摘要: |
| 目的 研究不同制备方法对牙釉质样品ESR信号的影响,有效地提高牙釉质样品ESR剂量学的灵敏度。方法 对无放射线照射史成年人臼齿分别用化学、机械以及机械加化学方法进行处理,制备牙釉质样品。利用电子自旋共振仪测定不同制备方法处理的样品在60Coγ射线照射不同剂量后的ESR信号。比较分析其灵敏度,从而寻求一种对牙釉质样品ESR信号影响较小的样品制备及处理方法。结果 不同方法处理的牙釉质样品的ESR信号,对60Coγ射线的响应有较明显的差异。结论 利用牙釉质ESR剂量学重建受照人员剂量时,尤其是使用附加照射法进行较低剂量重建时,选择合适的样品制备方法是十分重要的。 |
| 英文摘要: |
| Objective To study the influences of different sample preparation methods on tooth enamel ESR signals in order to reduce the effect of dentine on their sensitivities to radiation. Methods The enamel was separated from dentine of non_irradiated adult teeth by mechanical,chemical,or both methods.The samples of different preparations were scanned by an ESR spectrometer before and after irradiation. Results The response of ESR signals of samples prepared with different methods to radiation dose was significantly different. Conclusion (The selection) of sample preparation method is very important for dose reconstuction by tooth enamel ESR dosimetry,especially in the low dose range. |
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