Simulation and source design of large area uniform bremsstrahlung field

Ding Baiwen; Hao Jianhong; Zhang Fang; Zhao Qiang; Fan Jieqing; Dong Zhiwei

doi:10.11884/HPLPB202436.240175

Volume 36 Issue 12

Nov. 2024

Turn off MathJax

Article Contents

Article Navigation > High Power Laser and Particle Beams > 2024 > 36(12): 124003

Ding Baiwen, Hao Jianhong, Zhang Fang, et al. Simulation and source design of large area uniform bremsstrahlung field[J]. High Power Laser and Particle Beams, 2024, 36: 124003. doi: 10.11884/HPLPB202436.240175

Citation:

Ding Baiwen, Hao Jianhong, Zhang Fang, et al. Simulation and source design of large area uniform bremsstrahlung field[J]. High Power Laser and Particle Beams, 2024, 36: 124003. doi: 10.11884/HPLPB202436.240175

Citation:

PDF( 1187 KB)

Simulation and source design of large area uniform bremsstrahlung field

doi: 10.11884/HPLPB202436.240175

1.
School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China
2.
Institute of Applied Physics and Computational Mathematics, Beijing 100094, China

Received Date: 2024-05-21
Accepted Date: 2024-09-18
Rev Recd Date: 2024-09-18

Available Online: 2024-10-16

Publish Date: 2024-11-08

Abstract

Abstract

Bremsstrahlung diode is an important device for obtaining large area uniform bremsstrahlung field in laboratory. In this paper, based on Monte Carlo method, a model of single and double ring parallel electron beam bombarding tantalum target is established to simulate the process of bremsstrahlung field generated by ring diode. The electron beam energy is 1.5 MeV, the tantalum target thickness is 200 μm, and the dose of bremsstrahlung field generated by a single ring electron beam 10 cm behind the target is simulated by detector counting method. For single-ring diode structure, the inner diameter of the ring is the main factor affecting the bremsstrahlung field uniformity behind the target, and the larger the inner diameter, the worse the central dose uniformity. Compared with the inner diameter of the ring, the ring width mainly affects the dose of the radiation field, but has little influence on the uniformity. When the inner diameter of a single ring is 19 cm and the outer diameter is 20 cm, a uniform radiation field with a maximum area of 2290.221 cm² can be obtained. When the inner diameter of a single ring is 19 cm and the outer diameter is 20 cm, a uniform radiation field with a maximum area of 2290.221 cm² can be obtained. The double-loop diode structure can obtain a larger area of uniform radiation field than the single-loop structure. However, the variation of the outer ring diameter leads to multi-level peaks in the dose distribution of the radiation field, which also affects the homogeneity of each region of the radiation field. The simulation results show that by adding a concentric outer ring with an inner diameter of 43.5 cm and an outer diameter of 44.167 cm to the outside of the single ring structure, the radiation field area meeting the uniformity requirement can be increased to 7238.229 cm².
- X-ray,
- ring diode,
- bremsstrahlung,
- Monte Carlo method,
- homogeneity

FullText(HTML)

References(22)

References

[1]	刘锡三. 高功率脉冲技术[M]. 北京: 国防工业出版社, 2005 Liu Xisan. High pulsed power technology[M]. Beijing: National Defense Industry Press, 2005
[2]	张催, 张益海, 商宏杰, 等. X射线管原始谱和透射谱的测量及应用[J]. 原子能科学技术, 2016, 50(10):1859-1865 doi: 10.7538/yzk.2016.50.10.1859 Zhang Cui, Zhang Yihai, Shang Hongjie, et al. Measurement and application of original spectrum and transmission spectrum of X-ray tube[J]. Atomic Energy Science and Technology, 2016, 50(10): 1859-1865 doi: 10.7538/yzk.2016.50.10.1859
[3]	杨强, 葛良全, 谷懿, 等. 微型X射线管靶材厚度理论计算与出射光谱模拟研究[J]. 光谱学与光谱分析, 2013, 33(4):1130-1134 doi: 10.3964/j.issn.1000-0593(2013)04-1130-05 Yang Qiang, Ge Liangquan, Gu Yi, et al. Theoretical calculation and simulation research on micro X-ray tube target thickness and spectra[J]. Spectroscopy and Spectral Analysis, 2013, 33(4): 1130-1134 doi: 10.3964/j.issn.1000-0593(2013)04-1130-05
[4]	Salvat F, Fernández-Varea J M, Sempau J, et al. Monte Carlo simulation of bremsstrahlung emission by electrons[J]. Radiation Physics and Chemistry, 2006, 75(10): 1201-1219. doi: 10.1016/j.radphyschem.2005.05.008
[5]	刘锡三. 强流粒子束及其应用[M]. 北京: 国防工业出版社, 2007 Liu Xisan. Intense particle beams and its applications[M]. Beijing: National Defense Industry Press, 2007
[6]	赖祖武. 抗辐射电子学[M]. 北京: 国防工业出版社, 1998 Lai Zuwu. Radiation hardening electronics[M]. Beijing: National Defense Industry Press, 1998
[7]	何辉, 禹海军, 王毅, 等. 4 MeV闪光X光机轫致辐射靶设计[J]. 强激光与粒子束, 2019, 31:125102 doi: 10.11884/HPLPB201931.190273 He Hui, Yu Haijun, Wang Yi, et al. Design of bremsstrahlung target of 4 MeV flash X-ray machine[J]. High Power Laser and Particle Beams, 2019, 31: 125102 doi: 10.11884/HPLPB201931.190273
[8]	邱爱慈. 脉冲X射线模拟源技术的发展[J]. 中国工程科学, 2000, 2(9):24-28 doi: 10.3969/j.issn.1009-1742.2000.09.004 Qiu Aici. The development of technology for pulsed X ray simulators[J]. Engineering Science, 2000, 2(9): 24-28 doi: 10.3969/j.issn.1009-1742.2000.09.004
[9]	邱爱慈, 吕敏. 闪光二号── 一台太瓦级脉冲电子束加速器及其应用[J]. 物理, 1995, 24(6):325-331 Qiu Aici, Lü Min. Flash-Ⅱ, a TW pulsed electron beam accelerator and its application[J]. Physics, 1995, 24(6): 325-331
[10]	杨实, 任书庆, 丛培天, 等. “闪光二号”加速器适应性改造[J]. 强激光与粒子束, 2016, 28:015103 doi: 10.11884/HPLPB201628.015103 Yang Shi, Ren Shuqing, Cong Pentian, et al. Transformation of the Flash-Ⅱ accelerator[J]. High Power Laser and Particle Beams, 2016, 28: 015103 doi: 10.11884/HPLPB201628.015103
[11]	Bloomquist D D, Stinnett R W, Mcdaniel D H, et al. Saturn: a large area X-ray simulation accelerator[C]//Presented at the 6th Institute of Electrical and Electronic Engineers Pulsed Power Conference. 1987.
[12]	李进玺, 吴伟, 刘逸飞, 等. 多路并联二极管辐射场剂量均匀性研究[J]. 辐射研究与辐射工艺学报, 2023, 41:050703 Li Jinxi, Wu Wei, Liu Yifei, et al. Study on the dose uniformity of multi-channel parallel diode[J]. Journal of Radiation Research and Radiation Processing, 2023, 41: 050703
[13]	彭博, 黄宁, 王鹏, 等. 10~50 keV的X射线管轫致辐射能谱的解析计算[J]. 原子能科学技术, 2023, 57(6):1233-1242 doi: 10.7538/yzk.2022.youxian.0570 Peng Bo, Huang Ning, Wang Peng, et al. Analytical calculation of bremsstrahlung spectrum for X-ray tube at 10-50 keV[J]. Atomic Energy Science and Technology, 2023, 57(6): 1233-1242 doi: 10.7538/yzk.2022.youxian.0570
[14]	钦佩, 唐斌, 傅玉川, 等. 低能电子轫致辐射的蒙特卡罗模拟[J]. 辐射研究与辐射工艺学报, 2009, 27(6):337-340 doi: 10.3969/j.issn.1000-3436.2009.06.004 Qin Pei, Tang Bin, Fu Yuchuan, et al. Monte Carlo simulation on the bremsstrahlung of low energy electrons[J]. Journal of Radiation Research and Radiation Processing, 2009, 27(6): 337-340 doi: 10.3969/j.issn.1000-3436.2009.06.004
[15]	蒯斌, 邱爱慈, 王亮平, 等. 强脉冲超硬X射线产生技术研究[J]. 强激光与粒子束, 2005, 17(11):1739-1743 Kuai Bin, Qiu Aici, Wang Liangping, et al. Generation of intense pulsed super-hard X-ray[J]. High Power Laser and Particle Beams, 2005, 17(11): 1739-1743
[16]	钟甜城. 耦合磁绝缘传输线的大面积轫致辐射二极管设计[D]. 北京: 中国工程物理研究院, 2017 Zhong Tiancheng. Design of large area-bremsstrahlung diode coupled with MITL[D]. Beijing: China Academy of Engineering Physics, 2017
[17]	邵文成, 孙普男, 代文江. 高能电子在加速器靶物质中射程的数值模拟[J]. 原子能科学技术, 2008, 42(11):992-996 doi: 10.7538/yzk.2008.42.11.0992 Shao Wencheng, Sun Punan, Dai Wenjiang. Numerical simulation on range of high-energy electron moving in accelerator target[J]. Atomic Energy Science and Technology, 2008, 42(11): 992-996 doi: 10.7538/yzk.2008.42.11.0992
[18]	魏熙晔, 李泉凤, 严慧勇. 高能电子束轫致辐射特性的理论研究[J]. 物理学报, 2009, 58(4):2313-2319 doi: 10.3321/j.issn:1000-3290.2009.04.030 Wei Xiye, Li Quanfang, Yan Huiyong. Theoretical study on bremsstrahlung of high energy electrons[J]. Acta Physica Sinica, 2009, 58(4): 2313-2319 doi: 10.3321/j.issn:1000-3290.2009.04.030
[19]	Metropolis N, Ulam S. The Monte Carlo method[J]. Journal of the American Statistical Association, 1949, 44(247): 335-341. doi: 10.1080/01621459.1949.10483310
[20]	Adekitan A I. Monte Carlo analysis/simulation[D]. Ibadan: Ibadan University of Technology, 2014.
[21]	Fisher I Z. Applications of the Monte Carlo method in statistical physics[J]. Soviet Physics Uspekhi, 1960, 2: 783.
[22]	Sanford T W L, Mock R C. An intense large-volume uniform source of bremsstrahlung for pulsed gamma ray simulation[J]. IEEE Transactions on Nuclear Science, 1992, 39(6): 2060-2069. doi: 10.1109/23.211404