| 李海亮,梁红日,朱建国,陈英民,高泽宇,刘芳,李全太.有用线束朝向迷路内墙的加速器机房辐射屏蔽计算[J].中华放射医学与防护杂志,2013,33(4):427-430 |
| 有用线束朝向迷路内墙的加速器机房辐射屏蔽计算 |
| Radiation shielding for medical linear accelerator room with useful beam towards its maze |
| 投稿时间：2012-10-25 |
| DOI：10.3760/cma.j.issn.0254-5098.2013.04.027 |
| 中文关键词: 医用直线加速器 屏蔽 辐射防护 |
| 英文关键词:Medical linear accelerator Shielding Radiation protection |
| 基金项目:卫生行业科研专项(201002009) |
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| 中文摘要: |
| 目的 探讨有用线束朝向迷路内墙的放射治疗机房的辐射屏蔽计算方法。方法 根据国家职业卫生标准GBZ/T 201.2对某改建机房进行屏蔽计算,并与实际检测结果进行比较。结果 迷路入口处瞬时剂量率的理论计算结果和实际检测结果,防护门内分别为89和86 μSv/h,防护门外分别为5.7和6.2 μSv/h,理论计算结果与实际检测结果具有较好的一致性。结论 通过理论计算结果与检测结果的比较,验证了理论计算方法的准确性。 |
| 英文摘要: |
| Objective To study the calculational method for the radiotherapy facilities of the medical linear accelerator's useful beam towars its maze. Methods The shielding calculation was made under the relevant national standards for a radiotherapy treatment room and compared with the test results. Results The dose rates at the maze entrance as calculated and measured were 89 and 86 μSv/h inside the maze door, as well as 5.7 and 6.2 μSv/h outside the maze door, respectively. The calculated results were consistent with measured results. Conclusions By comparison of calculated results with measured results, the accuracy of the theoretical calculation method could be verified. |
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