| 吴伟章,于奡,戴光复,等.牙釉质EPR谱去卷积程序在剂量重建中的应用[J].中华放射医学与防护杂志,2005,25(3):281-282.WU Wei-zhang,YU Ao,DAI Guang-fu,et al.Application of enamel EPR deconvolution program in radiation dose reconstruction[J].Chin J Radiol Med Prot,2005,25(3):281-282 |
| 牙釉质EPR谱去卷积程序在剂量重建中的应用 |
| Application of enamel EPR deconvolution program in radiation dose reconstruction |
| 投稿时间：2004-06-08 |
| DOI： |
| 中文关键词: 牙釉质 EPR 拟合 剂量响应曲线 |
| 英文关键词:Enamel EPR Simulation Dose response curve |
| 基金项目: |
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| 摘要点击次数: 3429 |
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| 中文摘要: |
| 目的 探讨牙釉质电子顺磁共振(EPR)谱去卷积程序在小剂量区域剂量重建的应用。方法 用编写的EPR谱拟合程序拟合一系列用不同小剂量照射过的牙釉质样品EPR谱,得到相应的剂量信号(RIS)强度,线性回归得到剂量响应曲线,并分析拟合精度。结果 剂量响应曲线IRIS=14.04+0.768D(mGy),r=0.997,SD=19.8mGy。结论 这项技术将牙釉质EPR剂量重建的下限降低到约200mGy。 |
| 英文摘要: |
| Objective To investigate the application of enamel EPR deconvolution program in dose reconstruction in the low dose region. Methods A series of deconvolution procedure were composed to simulate the EPR spectra of the enamel samples irradiated by different low doses, and the corresponding radiation-induced signal (RIS) intensities were obtained. The dose-response curve was depicted by linear regression of RIS intensities versus the nominal doses. The accuracy of the spectra processing procedure was also discussed. Results The dose-response curve: IRIS=14.04+0.768D (mGy), the correlation coefficient was 0.997, and SD=19.8 mGy. Conclusion The technology can decrease the lower limit of the reconstructed enamel EPR dose to around 200 mGy. |
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