[1]王武,李旭浩,金献测. 医用直线加速器机房迷路改进设计研究[J].中国医学物理学杂志,2019,36(5):501-505.[doi:DOI:10.3969/j.issn.1005-202X.2019.05.002]
 WANG Wu,LI Xuhao,JIN Xiance. Improvement of linear accelerator treatment room maze[J].Chinese Journal of Medical Physics,2019,36(5):501-505.[doi:DOI:10.3969/j.issn.1005-202X.2019.05.002]
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 医用直线加速器机房迷路改进设计研究()
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《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
36卷
期数:
2019年第5期
页码:
501-505
栏目:
医学放射物理
出版日期:
2019-05-25

文章信息/Info

Title:
 Improvement of linear accelerator treatment room maze
文章编号:
1005-202X(2019)05-0501-05
作者:
 王武1李旭浩2金献测2
 1.温州医科大学附属第一医院医学工程处, 浙江 温州 325000; 2.温州医科大学附属第一医院放化疗科, 浙江 温州 325000
Author(s):
 WANG Wu1 LI Xuhao2 JIN Xiance2
 1. Department of Medical Engineering, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China; 2. Department of Radiotherapy and Chemotherapy, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
关键词:
 直线加速器机房设计辐射防护迷路辐射剂量计算
Keywords:
 Keywords: linear accelerator treatment room design radiation protection maze irradiation dose calculation
分类号:
R318; TU28
DOI:
DOI:10.3969/j.issn.1005-202X.2019.05.002
文献标志码:
A
摘要:
 在原有医用直线加速器机房基础上,依据NCRP151报告,对加速器机房迷路进行改进,从而改变门口屏蔽厚度,使到达门口的剂量降低至合理剂量范围内,消除公众对辐射的恐惧心理。经改进设计发现,直接延长迷路达到24.4 m时,射线到达门口的辐射剂量为20.00 ?Sv/week;改成90°拐弯延长迷路4.42 m时,射线到达门口的辐射剂量为19.60 ?Sv/week;改成180°拐弯延长迷路2.7 m时,射线到达门口的辐射剂量为18.53 ?Sv/week。改成180°拐弯迷路和90°拐弯迷路不仅可以减少迷路的延长距离,在造价上相对于传统安装的铅门也有优势。总之,医用直线加速器机房的迷路使用180°角拐弯延长法可最大程度降低有效剂量,并获得较高的性价比。
Abstract:
 Abstract: The purpose of this study is to improve the design of a linear accelerator treatment room maze based on NCRP151 report, so as to change the thickness of shielding door, decreasing the radiation dose at the gate and eliminating the public panic on radiation. The calculations after improvements reveal that the radiation dose at the gate is 20.00 ?Sv/week when the direct extension length of maze reaches 24.4 m; that the radiation dose at the gate is 19.60 ?Sv/week for a maze with an extension length of 4.42 m and a 90° bend; and that the radiation dose at the gate is 18.53 ?Sv/week for a maze with an extension length of 2.7 m and a 180° bend. The mazes with 90° and 180° bends not only decrease the necessary extension length, but also reduce the cost for gate and maze construction. In a conclusion, a linear accelerator treatment room maze with an extension of 180° bends can minimize the effective dose and achieve a high cost-effectiveness.

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备注/Memo

备注/Memo:
 【收稿日期】2018-12-20
【基金项目】国家自然科学基金(11675122);温州市重大科技专项(20-
18ZY016)
【作者简介】王武,工程师,研究方向:医学工程设备管理和维修,E-mail: 1123097608@qq.com;李旭浩,研究方向:放疗技术,E-mail: billy07@wzhospital.cn
【通信作者】金献测,博士,正高级工程师,研究方向:医学物理和放射治疗物理,E-mail: jinxc1979@hotmail.com
更新日期/Last Update: 2019-05-23