| 王建超,徐辉,尉可道,岳保荣.3种无源固体探测器对低能X射线能量响应的研究[J].中华放射医学与防护杂志,2010,30(6):735-736 |
| 3种无源固体探测器对低能X射线能量响应的研究 |
| Energy dependence of three passive solid detectors on low energy X-ray |
| 投稿时间：2009-12-17 |
| DOI： |
| 中文关键词: 乳腺X射线摄影 固体探测器 能量响应 剂量测量 |
| 英文关键词:Mammography Solid detector Energy dependence Dose measurement |
| 基金项目:科技部科研院所社会公益研究专项(2004BIB1J035) |
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| 中文摘要: |
| 目的 研究3种无源固体探测器对低能X射线的能量响应,评估在乳腺X射线摄影检查中测量入射体表剂量和估算平均腺体剂量的可行性。方法 选用LiF(Mg,Ti)和LiF(Mg,Cu,P)热释光(TL)材料和A12O3:C光致发光(OSL)材料的固体探测器,在Mo/Mo低能X射线机上,管电压25～40kV范围的10种线质分别曝光相同的空气比释动能。结果 给出管电压在25kV～40kV范围的10种辐射线质时TL和OSL能量响应,分别小于25％和11％。结论 A12O3:C光释光探测器用于乳腺X射线摄影日常质量控制和入射体表剂量测量具有相当大的潜力。 |
| 英文摘要: |
| Objective To assess the feasibility of ESD measurements in the mammography by the comparative study of energy dependence of the three passive solid detectors on low energy X-ray. Methods Two thermoluminescent TL) detectors (LiF(Mg,Ti) and LiF(Mg,Cu,P) and one optically stimulated luminescence (OSL) detector(A12O3:C) were irradiated for the same air kerma by ten kinds of beam quality between 25-40 kV in a Mo/Mo low energy X-ray generator,respectively. Results The energy dependences of TL and OSL were 25% and 11% between 25-40 kV, respectively. Conclusions A considerable potential for OSL detector can be used in routine quality control and ESD measurements in the mammography. |
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