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Discussion of radiation shielding optimization for proton cyclotron therapy system plants |
MENG Qingsen1, FU Yaping1, WANG Feng1, ZHANG Tianjue1, DANG Lei2 |
1. China Institute of Atomic Energy, Beijing 102413 China; 2. Nuclear and Radiation Safety Center, Beijing 102442 China |
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Abstract Objective To explore the radiation shielding optimization plan for a medical proton cyclotron developing and commissioning building at various commissioning stages.Methods According to the maximum source termsat different commissioning stages, we used the empirical formula to estimate the instantaneous dose rate at the point of interest outside the shield of the building, and optimized the building’s shielding ateach commissioning stage.Results When adding 1.0 m mobile concrete shielding blocks (“blocks” below) each to wall 3 and wall 4 at the cyclotron commissioning stage, 1.0 m blocks to wall 4 and 1.25 m blocks to wall 5 at the beam transport line commissioning stage, and 1.0 m blocks to wall 9 and 0.4 m blocks to the ceiling at the simulated treatment room commissioning stage, the dose rates at the points of interest outside the shield could meet the dose rate limit requirements.Conclusion The application of mobile concrete shielding blocks not only meets the shielding requirements, but also has economical and space-saving advantages, conforming to the principle of shielding optimization. This can be an approach to the optimization of radiation shielding for high-energy particle accelerators or similar scientific projects.
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Received: 20 January 2022
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[1] 王科慧, 李勇先, 张骏. 质子加速器在肿瘤治疗中的应用及辐射防护[J]. 四川环境,2017,36(S1):129-134. DOI: 10.14034/j.cnki.schj.2017.s1.027 Wang KH, Li YX, Zhang J. Application and rediation protection of proton accelerator in tumor therapy[J]. Sichuan Environ, 2017, 36(S1): 129-134. DOI: 10.14034/j.cnki.schj.2017.s1.027 [2] 金潇, 严源, 韩春彩. 高能质子治疗系统辐射环境影响评价关键问题探讨[J]. 中国辐射卫生,2020,29(1):65-68. DOI: 10.13491/j.issn.1004-714X.2020.01.015 Jin X, Yan Y, Han CC. Discussion on some key issues in radiation environmental impact assessment of high energy proton therapy system[J]. Chin J Radiol Health, 2020, 29(1): 65-68. DOI: 10.13491/j.issn.1004-714X.2020.01.015 [3] 刘原中, 唐鄂生, 李建平, 等. 高能质子加速器治疗系统应用中的环境安全问题[J]. 原子能科学技术,2004,38(S1):192-196. DOI: 10.3969/j.issn.1000-6931.2004.z1.046 Liu YZ, Tang ES, Li JP. The problems of environmental safety for application of high energy proton accelerator therapy system[J]. At Energy Sci Technol, 2004, 38(S1): 192-196. DOI: 10.3969/j.issn.1000-6931.2004.z1.046 [4] 赵木, 常晟, 尚自强. 质子治疗相关设备技术特点分析[J]. 医疗卫生装备,2019,40(3):81-84. DOI: 10.19745/j.1003-8868.2019073 Zhao M, Chang S, Shang ZQ. Technical analysis of proton therapeutic equipment[J]. Chin Med Equip J, 2019, 40(3): 81-84. DOI: 10.19745/j.1003-8868.2019073 [5] 王孝娃, 杜宁, 王岚. 上海市质子碳离子放射治疗设施辐射源关键点分析[J]. 中国医疗器械杂志,2020,44(6):476-480. DOI: 10.3969/j.issn.1671-7104.2020.06.002 Wang XW, Du N, Wang L, et al. Analysis of key points of radiation sources in proton and carbon ion radiotherapy facilities in shanghai[J]. Chin J Med Instrum, 2020, 44(6): 476-480. DOI: 10.3969/j.issn.1671-7104.2020.06.002 [6] 吴青彪, 彭毅, 王庆斌, 等. 恒健质子治疗装置的辐射与屏蔽设计[J]. 南方能源建设,2016,3(3):16-22. DOI: 10.16516/j.gedi.issn2095-8676.2016.03.003 Wu QB, Peng Y, Wang QB, et al. Radiation and shielding design of hengjian proton medical facility[J]. Southern Energy Constr, 2016, 3(3): 16-22. DOI: 10.16516/j.gedi.issn2095-8676.2016.03.003 [7] Wu QB, Wang QB, Liang TJ, et al. Study on patient-induced radioactivity during proton treatment in Hengjian proton medical facility[J]. Appl Radiat Isot, 2016, 115: 235-250. DOI: 10.1016/j.apradiso.2016.06.029 [8] 朱卫国, 梁婧, 侯长松, 等. 质子加速器治疗室辐射防护优化研究[J]. 中华放射医学与防护杂志,2019,39(9):707-710. DOI: 10.3760/cma.j.issn.0254-5098.2019.09.013 Zhu WG, Liang J, Hou CS, et al. Study on the optimization of radiation protection for therapeutic proton synchrotron[J]. Chin J Radiol Med Prot, 2019, 39(9): 707-710. DOI: 10.3760/cma.j.issn.0254-5098.2019.09.013 [9] 单超, 徐坤, 田源, 等. 质子治疗机房的屏蔽设计方案国内外比较[J]. 中华放射医学与防护杂志,2020,40(12):911-918. DOI: 10.3760/cma.j.issn.0254-5098.2020.12.004 Shan C, Xu K, Tian Y, et al. Shielding design scheme for proton therapy treatment rooms: comparison between Chinese and international radiation shielding standards for radiotherapy facilities[J]. Chin J Radiol Med Prot, 2020, 40(12): 911-918. DOI: 10.3760/cma.j.issn.0254-5098.2020.12.004 [10] 邹剑明, 许志强, 耿继武, 等. 基于蒙特卡罗方法的质子治疗室屏蔽陪护探讨[J]. 中国辐射卫生,2019,28(4):443-446. DOI: 10.13491/j.issn.1004-714X.2019.04.026 Zou JM, Xu ZQ, Geng JW, et al. Radiation shielding design of proton therapy treatment room based on the Monte Carlo method[J]. Chin J Radiol Health, 2019, 28(4): 443-446. DOI: 10.13491/j.issn.1004-714X.2019.04.026 [11] 田丽霞, 房冰冰, 朱光昊, 等. 质子束治疗中Bragg峰分布特性的SRIM模拟研究[J]. 中国辐射卫生,2021,30(1):91-93,122. DOI: 10.13491/j.issn.1004-714X.2021.01.020 Tian LX, Fang BB, Zhu GH, et al. Simulation on the Bragg peak distribution based on SRIM in proton therapy[J]. Chin J Radiol Health, 2021, 30(1): 91-93,122. DOI: 10.13491/j.issn.1004-714X.2021.01.020 [12] 闫卓, 徐榭, 陈志. 基于蒙特卡洛方法和数字体模的质子治疗设施屏蔽优化设计[J]. 中国医学物理学杂志,2020,37(12):1482-1489. DOI: 10.3969/j.issn.1005-202X.2020.12.002 Yan Z, Xu X, Chen Z, et al. Shielding optimization of proton therapy facilities based on Monte Carlo simulations and voxelized human phantoms[J]. Chin J Med Phys, 2020, 37(12): 1482-1489. DOI: 10.3969/j.issn.1005-202X.2020.12.002 [13] Böhlen TT, Cerutti F, Chin MPW, et al. The FLUKA code: developments and challenges for high energy and medical applications[J]. Nucl Data Sheets, 2014, 120: 211-214. DOI: 10.1016/j.nds.2014.07.049 [14] Agosteo S, Magistris M, Mereghetti A, et al. Shielding data for 100-250 MeV proton accelerators: attenuation of secondary radiation in thick iron and concrete/iron shields[J]. Nucl Instrum Methods Phys Res B, 2008, 266(15): 3406-3416. DOI: 10.1016/j.nimb.2008.05.002 [15] 中华人民共和国国家卫生和计划生育委员会. GBZ/T 201.5—2015 放射治疗机房的辐射屏蔽规范 第5部分: 质子加速器放射治疗机房[S]. 北京: 中国标准出版社, 2016. National Health and Family Planning Commission of the People's Republic of China. GBZ/T 201.5—2015 Radiation shielding requirements for radiotherapy room-part 5: radiotherapy room of proton accelerators[S]. Beijing: Standards Press of China, 2016. [16] Tesch K. A simple estimation of the lateral shielding for proton accelerators in the energy range 50 to 1000 MeV[J]. Radiat Prot Dosim, 1985, 11(3): 165-172. DOI: 10.1093/oxfordjournals.rpd.a079462 [17] 中华人民共和国国家卫生健康委员会. GBZ 121—2020 放射治疗放射防护要求[S]. 北京: 中国标准出版社, 2020. National Health Commission of the People's Republic of China. GBZ 121—2020 Requirements for radiological protection in radiotherapy[S]. Beijing: Standards Press of China, 2020.
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