Research advancements of small-scale flash X-ray machine

Hu Hanpeng; Huang Yaqi; Zhang Zhenming; Zhang Xiulu; Yuan Changying

doi:10.11884/HPLPB202436.240020

Volume 36 Issue 5

Apr. 2024

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Hu Hanpeng, Huang Yaqi, Zhang Zhenming, et al. Research advancements of small-scale flash X-ray machine[J]. High Power Laser and Particle Beams, 2024, 36: 055004. doi: 10.11884/HPLPB202436.240020

Citation:

Hu Hanpeng, Huang Yaqi, Zhang Zhenming, et al. Research advancements of small-scale flash X-ray machine[J]. High Power Laser and Particle Beams, 2024, 36: 055004. doi: 10.11884/HPLPB202436.240020

Hu Hanpeng, Huang Yaqi, Zhang Zhenming, et al. Research advancements of small-scale flash X-ray machine[J]. High Power Laser and Particle Beams, 2024, 36: 055004. doi: 10.11884/HPLPB202436.240020

Citation:

Hu Hanpeng, Huang Yaqi, Zhang Zhenming, et al. Research advancements of small-scale flash X-ray machine[J]. High Power Laser and Particle Beams, 2024, 36: 055004. doi: 10.11884/HPLPB202436.240020

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Research advancements of small-scale flash X-ray machine

doi: 10.11884/HPLPB202436.240020

1.
School of Nuclear Science and Technology, Southwest University of Science and Technology, Mianyang 621000, China
2.
School of Mathematics and Physics, Southwest University of Science and Technology, Mianyang 621000, China

Received Date: 2024-01-15
Accepted Date: 2024-03-24
Rev Recd Date: 2024-03-24

Available Online: 2024-03-30

Publish Date: 2024-04-28

Abstract

Abstract

Flash X-ray radiography is often used to photograph the internal structure and hydrodynamic behavior of high-speed moving objects, and has gradually expanded to the fields of industrial flaw detection, precision system state detection and so on. This paper summarizes the research process and progress of small flash X-ray machine (SFXM), relating to four main technical routes of Marx generator, pulse forming line, fast pulse linear transformer, high-voltage transformer, and two key components of X-ray diode and switches. The research status of small flash X-ray radiography system is discussed, and the shortcomings of mature commercial small X-ray machines abroad and domestic commercial products are explored, The development trend of SFXM in the future is analyzed, which provides reference and basis for the research and development of SFXM and the exploration of commercial popularization.
- compact,
- Marx generator,
- gas switch,
- flash photography,
- commercialization

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References(59)

References

[1]	Wei Hao, Sun Jiahui, Zhang Pengfei, et al. Development of a 4-MV, 80-kA-induction voltage adder for flash X-ray radiography[J]. IEEE Transactions on Plasma Science, 2019, 47(11): 5030-5036. doi: 10.1109/TPS.2019.2946685
[2]	Xie Weiping, Xia Minghe, Guo Fan, et al. Design and performance of a pulsed power-driven X-ray source for flash radiography[J]. Physical Review Accelerators and Beams, 2021, 24: 110401. doi: 10.1103/PhysRevAccelBeams.24.110401
[3]	吴红光, 曹科峰, 梁川, 等. 150kV脉冲X光机[J]. 强激光与粒子束, 2010, 22(4):941-944 doi: 10.3788/HPLPB20102204.0941 Wu Hongguang, Cao Kefeng, Liang Chuan, et al. 150kV pulsed X-ray system[J]. High Power Laser and Particle Beams, 2010, 22(4): 941-944 doi: 10.3788/HPLPB20102204.0941
[4]	李洪涛, 王传伟, 王凌云, 等. 500 kV全固态Marx发生器[J]. 强激光与粒子束, 2012, 24(4):917-920 doi: 10.3788/HPLPB20122404.0917 Li Hongtao, Wang Chuanwei, Wang Lingyun, et al. 500 kV all-solid-state Marx generator[J]. High Power Laser and Particle Beams, 2012, 24(4): 917-920 doi: 10.3788/HPLPB20122404.0917
[5]	吴红光, 赵延安, 王晓, 等. 200kV闪光照相测试系统[J]. 强激光与粒子束, 2013, 25(6):1401-1404 doi: 10.3788/HPLPB20132506.1401 Wu Hongguang, Zhao Yan’an, Wang Xiao, et al. 200-kV flash X-ray radiographic test system[J]. High Power Laser and Particle Beams, 2013, 25(6): 1401-1404 doi: 10.3788/HPLPB20132506.1401
[6]	梁川, 席璐璘, 周林, 等. 便携式150kV闪光X光源研制及应用[J]. 强激光与粒子束, 2014, 26:045033 doi: 10.3788/HPLPB20142604.45033 Liang Chuan, Xi Lulin, Zhou Lin, et al. Investigation and application of a portable 150 kV flash X-ray system[J]. High Power Laser and Particle Beams, 2014, 26: 045033 doi: 10.3788/HPLPB20142604.45033
[7]	吴红光, 丁明军, 赵延安, 等. 快前沿紧凑型X光机研制[J]. 强激光与粒子束, 2014, 26:055005 doi: 10.3788/HPLPB20142605.55005 Wu Hongguang, Ding Mingjun, Zhao Yan’an, et al. Compact fast raising-edge X-ray system[J]. High Power Laser and Particle Beams, 2014, 26: 055005 doi: 10.3788/HPLPB20142605.55005
[8]	吴红光, 李玺钦, 刘金锋, 等. 150kV脉冲X射线测试系统[J]. 强激光与粒子束, 2015, 27:065005 doi: 10.3788/HPLPB20152706.65005 Wu Hongguang, Li Xiqin, Liu Jinfeng, et al. 150-kV pulsed X-ray test system[J]. High Power Laser and Particle Beams, 2015, 27: 065005 doi: 10.3788/HPLPB20152706.65005
[9]	吴红光, 马成刚, 冯元伟, 等. 450 kV数字化X光照相诊断系统[J]. 强激光与粒子束, 2016, 28:014003 doi: 10.11884/HPLPB201628.014003 Wu Hongguang, Ma Chenggang, Fen Yuanwei, et al. 450 kV digital X-ray diagnostic system[J]. High Power Laser and Particle Beams, 2016, 28: 014003 doi: 10.11884/HPLPB201628.014003
[10]	伍友成, 何泱, 戴文峰, 等. 基于快Marx发生器的紧凑型重频脉冲驱动源[J]. 高电压技术, 2017, 43(12):4032-4038 Wu Youcheng, He Yang, Dai Wenfeng, et al. Compact repetitive pulsed power system based on fast Marx generator[J]. High Voltage Engineering, 2017, 43(12): 4032-4038
[11]	伍友成, 何泱, 戴文峰, 等. 高功率紧凑型重频快Marx脉冲驱动源[J]. 强激光与粒子束, 2017, 29:055003 doi: 10.11884/HPLPB201729.170040 Wu Youcheng, He Yang, Dai Wenfeng, et al. High power compact repetitive fast Marx pulsed power source[J]. High Power Laser and Particle Beams, 2017, 29: 055003 doi: 10.11884/HPLPB201729.170040
[12]	伍友成, 杨宇, 何泱, 等. 重复频率低阻抗紧凑Marx脉冲功率源[J]. 强激光与粒子束, 2018, 30:075002 doi: 10.11884/HPLPB201830.170453 Wu Youcheng, Yang Yu, He Yang, et al. Compact repetitive Marx generator with low impedance[J]. High Power Laser and Particle Beams, 2018, 30: 075002 doi: 10.11884/HPLPB201830.170453
[13]	邓明海. 300kV脉冲X射线源辐射特性及其应用研究[D]. 绵阳: 中国工程物理研究院, 2020 Deng Minghai. Investigation on radiation performance and application from 300kV pulsed X-ray source[D]. Mianyang: China Academy of Engineering Physics, 2020
[14]	耿力东, 谢卫平, 羊强, 等. 基于PFN-Marx技术的200 keV脉冲X射线源设计与实验[J]. 强激光与粒子束, 2022, 34:085002 doi: 10.11884/HPLPB202234.210573 Geng Lidong, Xie Weiping, Yang Qiang, et al. Design and experiments of the 200 keV pulse X-ray source based on PFN-Marx technology[J]. High Power Laser and Particle Beams, 2022, 34: 085002 doi: 10.11884/HPLPB202234.210573
[15]	宋法伦, 金晓, 李飞, 等. 20 GW紧凑Marx型重复频率脉冲驱动源研制进展[J]. 强激光与粒子束, 2017, 29:020101 doi: 10.11884/HPLPB201729.160510 Song Falun, Jin Xiao, Li Fei, et al. Progress on 20 GW compact repetitive Marx generator development[J]. High Power Laser and Particle Beams, 2017, 29: 020101 doi: 10.11884/HPLPB201729.160510
[16]	Platts D, Hockaday M P, Beck D, et al. Compact flash X-ray units[C]//Digest of Technical Papers. Tenth IEEE International Pulsed Power Conference. 1995: 892-896.
[17]	Boyer C N, Holland G E, Seely J F. Intense source of nanosecond duration 10-KeV to 250-KeV X rays[C]//Proceedings of SPIE 4781, Advances in Laboratory-Based X-Ray Sources and Optics III. 2005: 42-53.
[18]	Patel A S, Senthil K, Menon R, et al. A 500 kV, 10 kA, 40 ns coaxial Marx generator pulser for cable fed flash X-ray system[J]. Review of Scientific Instruments, 2022, 93: 104708. doi: 10.1063/5.0106045
[19]	Menon K R, Patel A S, Senthil K, et al. Characterization of flash X-ray source from a Marx-based pulse power system[J]. IEEE Transactions on Plasma Science, 2021, 49(8): 2359-2363. doi: 10.1109/TPS.2021.3092055
[20]	Li Rong, Qi Rong. Design of a new type of solid-state coaxial Blumlein pulse forming line[J]. IEEE Transactions on Plasma Science, 2018, 46(9): 3201-3208. doi: 10.1109/TPS.2018.2846750
[21]	马勋. 器件固态化重频X光机关键技术研究[D]. 绵阳: 中国工程物理研究院, 2015 Ma Xun. Investigation on all-soild-state flash X-ray generator with repetitive frame[D]. Mianyang: China Academy of Engineering Physics, 2015
[22]	耿玖源, 杨建华, 舒挺, 等. 10 GW甘油介质双螺旋Blumlein脉冲形成线[J]. 强激光与粒子束, 2023, 35:065004 doi: 10.11884/HPLPB202335.230005 Geng Jiuyuan, Yang Jianhua, Shu Ting, et al. 10 GW dual-spiral Blumlein pulse forming lines in glycerol medium[J]. High Power Laser and Particle Beams, 2023, 35: 065004 doi: 10.11884/HPLPB202335.230005
[23]	李祥伟, 常安碧, 宋法伦, 等. PCB板折叠形成线模块设计与实验[J]. 强激光与粒子束, 2013, 25(7):1826-1830 doi: 10.3788/HPLPB20132507.1826 Li Xiangwei, Chang Anbi, Song Falun, et al. Design and experimental investigation of folded parallel-plate pulse forming line based on PCB[J]. High Power Laser and Particle Beams, 2013, 25(7): 1826-1830 doi: 10.3788/HPLPB20132507.1826
[24]	邵元正. 同轴螺旋Blumlein线波形改善技术研究[D]. 长沙: 国防科学技术大学, 2015 Shao Yuanzhen. Study on the coaxial spiral Blumlein line output waveform optimization[D]. Changsha: National University of Defense Technology, 2015
[25]	陈林, 王勐, 邹文康, 等. 中物院快脉冲直线型变压器驱动源技术研究进展[J]. 高电压技术, 2015, 41(6):1798-1806 Chen Lin, Wang Meng, Zou Wenkang, et al. Recent advances in fast linear transformer driver in CAEP[J]. High Voltage Engineering, 2015, 41(6): 1798-1806
[26]	周良骥, 邓建军, 陈林, 等. 快脉冲直线变压器驱动源模块的原理及实验[J]. 强激光与粒子束, 2006, 18(10):1749-1752 Zhou Liangji, Deng Jianjun, Chen Lin, et al. Design and experiment of linear transformer driver stage[J]. High Power Laser and Particle Beams, 2006, 18(10): 1749-1752
[27]	陈林, 周良骥, 谢卫平, 等. 100kA快脉冲直线变压器驱动源模块[J]. 强激光与粒子束, 2010, 22(6):1407-1410 doi: 10.3788/HPLPB20102206.1407 Chen Lin, Zhou Liangji, Xie Weiping, et al. Research on 100 kA fast linear transformer driver stage[J]. High Power Laser and Particle Beams, 2010, 22(6): 1407-1410 doi: 10.3788/HPLPB20102206.1407
[28]	周良骥, 邓建军, 陈林, 等. 1MA直线型变压器驱动源模块设计[J]. 强激光与粒子束, 2010, 22(3):465-468 doi: 10.3788/HPLPB20102203.0465 Zhou Liangji, Deng Jianjun, Chen Lin, et al. Design of 1MA linear transformer driver stage[J]. High Power Laser and Particle Beams, 2010, 22(3): 465-468 doi: 10.3788/HPLPB20102203.0465
[29]	陈林, 邹文康, 谢卫平, 等. 1MV/100kA快脉冲直线型变压器驱动源装置设计[J]. 高电压技术, 2012, 38(4):935-940 Chen Lin, Zou Wenkang, Xie Weiping, et al. Design of the 1mV/100kA fast linear transformer driver generator[J]. High Voltage Engineering, 2012, 38(4): 935-940
[30]	陈林, 周良骥, 蒋吉昊, 等. 基于方波LTD的3 MV闪光照相驱动器设计[J]. 强激光与粒子束, 2017, 29:115001 doi: 10.11884/HPLPB201729.170189 Chen Lin, Zhou Liangji, Jiang Jihao, et al. Design of 3 MV flash radiographic driver based on square pulse LTD[J]. High Power Laser and Particle Beams, 2017, 29: 115001 doi: 10.11884/HPLPB201729.170189
[31]	梁天学, 孙凤举, 邱爱慈, 等. 百ns直线型脉冲变压器模块仿真及初步试验[J]. 高电压技术, 2007, 33(7):18-21 Liang Tianxue, Song Fengju, Qiu Aici, et al. Simulation and primary experimentation of fast linear transformer driver module[J]. High Voltage Engineering, 2007, 33(7): 18-21
[32]	梁天学, 姜晓峰, 孙凤举, 等. 300kA直线型变压器驱动源模块实验研究[J]. 强激光与粒子束, 2012, 24(3):655-658 doi: 10.3788/HPLPB20122403.0655 Liang Tianxue, Jiang Xiaofeng, Song Fengju, et al. Experimental investigation of 300kA fast linear transformer driver stage[J]. High Power Laser and Particle Beams, 2012, 24(3): 655-658 doi: 10.3788/HPLPB20122403.0655
[33]	郭帆, 贾伟, 谢霖燊, 等. 基于半导体开关和LTD技术的高重频快沿高压脉冲源[J]. 强激光与粒子束, 2016, 28:055002 doi: 10.11884/HPLPB201628.055002 Guo Fan, Jia Wei, Xie Linshen, et al. High power high repetitive frequency generator based on MOSFET and LTD technology[J]. High Power Laser and Particle Beams, 2016, 28: 055002 doi: 10.11884/HPLPB201628.055002
[34]	孙凤举, 姜晓峰, 魏浩, 等. 一种多级串联共用外腔体新结构LTD[J]. 强激光与粒子束, 2017, 29:025001 doi: 10.11884/HPLPB201729.160507 Sun Fengju, Jiang Xiaofeng, Wei Hao, et al. Novel configuration linear transformer driver with multistages in series sharing common cavity shell[J]. High Power Laser and Particle Beams, 2017, 29: 025001 doi: 10.11884/HPLPB201729.160507
[35]	王志国, 孙凤举, 姜晓峰, 等. FLTD大规模气体开关同步触发技术研究[J]. 现代应用物理, 2022, 13:040407 Wang Zhiguo, Sun Fengju, Jiang Xiaofeng, et al. Synchronous trigger technology for large-scale gas switches of FLTD[J]. Modern Applied Physics, 2022, 13: 040407
[36]	康强, 常安碧, 李名加, 等. 带脉冲形成线的1.0 MV 100Hz紧凑型Tesla变压器的研制[J]. 强激光与粒子束, 2006, 18(3):451-454 Kang Qiang, Chang Anbi, Li Mingjia, et al. Development of a 1.0 MV 100Hz compact Tesla transformer with PFL[J]. High Power Laser and Particle Beams, 2006, 18(3): 451-454
[37]	刘金亮, 张瑜, 程新兵, 等. 一种结构紧凑重频高压ns脉冲电源的设计[J]. 高电压技术, 2009, 35(1):54-58 Liu Jinliang, Zhang Yu, Chen Xinbing, et al. Design of a compact repetitive high-voltage nanosecond pulse generator[J]. High Voltage Engineering, 2009, 35(1): 54-58
[38]	石磊, 朱郁丰, 卢彦雷, 等. 紧凑Tesla变压器型纳秒脉冲源[J]. 强激光与粒子束, 2014, 26:125001 doi: 10.3788/HPLPB20142612.125001 Shi Lei, Zhu Yufeng, Lu Yanlei, et al. Compact GW nanosecond pulse generator based on Tesla transformer[J]. High Power Laser and Particle Beams, 2014, 26: 125001 doi: 10.3788/HPLPB20142612.125001
[39]	杨林森. 高功率Tesla变压器的理论设计和仿真研究[D]. 宜昌: 三峡大学, 2020 Yang Linsen. Theoretical design and simulation research of high power Tesla transformer[D]. Yichang: China Three Gorges University, 2020
[40]	Zhou Lin, Ye Mingtian, Qi Jianming, et al. A compact nanosecond pulse generator for X-ray radiographies[J]. Review of Scientific Instruments, 2021, 92: 124711. doi: 10.1063/5.0070794
[41]	李名加, 许州, 金晓. 三谐振高压脉冲变压器理论分析与模拟[J]. 强激光与粒子束, 2008, 20(11):1923-1927 Li Mingjia, Xu Zhou, Jin Xiao. Theoretic analysis and simulation of triple resonance pulse transformer[J]. High Power Laser and Particle Beams, 2008, 20(11): 1923-1927
[42]	李名加. 基于三谐振脉冲变压器的脉冲功率源研究[D]. 绵阳: 中国工程物理研究院, 2011 Li Mingjia. Research on pulse power source based on three resonant pulse transformer[D]. Mianyang: China Academy of Engineering Physics, 2011
[43]	李名加, 许州, 辛佳祺, 等. 三谐振高压脉冲变压器[J]. 强激光与粒子束, 2012, 24(3):697-702 doi: 10.3788/HPLPB20122403.0697 Li Mingjia, Xu Zhou, Xin Jiaqi, et al. Triple resonance pulse transformer[J]. High Power Laser and Particle Beams, 2012, 24(3): 697-702 doi: 10.3788/HPLPB20122403.0697
[44]	李名加, 周林, 章法强, 等. 基于双锥形绕组铁芯变压器的三谐振脉冲变压器[J]. 强激光与粒子束, 2016, 28:015002 doi: 10.11884/HPLPB201628.015002 Li Mingjia, Zhou Lin, Zhang Faqiang, et al. Triple resonance pulse transformer based on taper dual-winding magnetic core transformer[J]. High Power Laser and Particle Beams, 2016, 28: 015002 doi: 10.11884/HPLPB201628.015002
[45]	张小强, 赵光义, 周林, 等. 500 kV亚纳秒脉冲X光机研制[J]. 强激光与粒子束, 2018, 30:025004 doi: 10.11884/HPLPB201830.170389 Zhang Xiaoqiang, Zhao Guangyi, Zhou Lin, et al. Design of 500 kV sub-nanosecond pulsed X-ray generator[J]. High Power Laser and Particle Beams, 2018, 30: 025004 doi: 10.11884/HPLPB201830.170389
[46]	税荣杰, 陈学秒, 王桂吉, 等. 较高场畸变系数的大电流三电极气体开关[J]. 强激光与粒子束, 2023, 35:065003 doi: 10.11884/HPLPB202335.220349 Shui Rongjie, Chen Xuemiao, Wang Guiji, et al. High-current three-electrode gas switch with high field distortion coefficient[J]. High Power Laser and Particle Beams, 2023, 35: 065003 doi: 10.11884/HPLPB202335.220349
[47]	付佳斌, 王凌云, 何泱, 等. 基于光导开关的激光二极管触发三电极气体开关研究[J]. 强激光与粒子束, 2022, 34:095003 doi: 10.11884/HPLPB202234.210536 Fu Jiabin, Wang Lingyun, He Yang, et al. LD triggered three-electrode gas switch based on photoconductive semiconductor[J]. High Power Laser and Particle Beams, 2022, 34: 095003 doi: 10.11884/HPLPB202234.210536
[48]	罗城, 丛培天, 张天洋, 等. 气体火花开关电极烧蚀研究综述[J]. 强激光与粒子束, 2020, 32:105001 doi: 10.11884/HPLPB202032.200114 Luo Cheng, Cong Peitian, Zhang Tianyang, et al. Review of the research on electrode erosion of gas spark switch[J]. High Power Laser and Particle Beams, 2020, 32: 105001 doi: 10.11884/HPLPB202032.200114
[49]	饶俊峰, 洪凌锋, 郭龙跃, 等. 多路Marx并联高压脉冲电源研究[J]. 强激光与粒子束, 2020, 32:055001 doi: 10.11884/HPLPB202032.190472 Rao Junfeng, Hong Lingfeng, Guo Longyue, et al. Investigation of high voltage pulse generators with Marx generators in parallel[J]. High Power Laser and Particle Beams, 2020, 32: 055001 doi: 10.11884/HPLPB202032.190472
[50]	袁建强, 李洪涛, 刘宏伟, 等. 大功率光导开关研究[J]. 强激光与粒子束, 2010, 22(4):791-794 doi: 10.3788/HPLPB20102204.0791 Yuan Jianqiang, Li Hongtao, Liu Hongwei, et al. Study on high-power photoconductive semiconductor switches[J]. High Power Laser and Particle Beams, 2010, 22(4): 791-794 doi: 10.3788/HPLPB20102204.0791
[51]	袁建强. 光触发大功率半导体开关研究进展[C]//2018年版中国工程物理研究院科技年报. 2018: 108-114 Yuan Jianqiang. Research progress of light triggered high power semiconductor switches[C]//Annual Report of Science and Technology of China Academy of Engineering Physics. 2018: 108-114
[52]	袁建强, 谢卫平, 周良骥, 等. 光导开关研究进展及其在脉冲功率技术中的应用[J]. 强激光与粒子束, 2008, 20(1):171-176 Yuan Jianqiang, Xie Weiping, Zhou Liangji, et al. Developments and applications of photoconductive semiconductor switches in pulsed power technology[J]. High Power Laser and Particle Beams, 2008, 20(1): 171-176
[53]	田野. 基于光导开关的Marx发生器研究[D]. 西安: 西安电子科技大学, 2021 Tian Ye. Research on Marx generator based on photoconductive switches[D]. Xi’an: Xidian University, 2021
[54]	Ma Xun, Deng Jianjun, Liu Hongwei, et al. Development of all-solid-state flash X-ray generator with photoconductive semiconductor switches[J]. Review of Scientific Instruments, 2014, 85: 093307. doi: 10.1063/1.4895829
[55]	Yuan Qi, Deng Zichen, Ding Weidong, et al. New advances in solid-state pulse generator based on magnetic switches[J]. Review of Scientific Instruments, 2022, 93: 051501. doi: 10.1063/5.0079583
[56]	Gao Jingming, Li Song, Yang Hanwu, et al. A novel compact solid-state high power pulse generator based on magnetic switch and square waveform pulse transformer[J]. Review of Scientific Instruments, 2023, 94: 014707. doi: 10.1063/5.0110453
[57]	梁川, 谢敏, 章林文, 等. 高能闪光X射线二极管设计与模拟[J]. 强激光与粒子束, 2008, 20(2):331-334 Liang Chuan, Xie Min, Zhang Linwen, et al. Design and simulation of high energy flash X-ray tube[J]. High Power Laser and Particle Beams, 2008, 20(2): 331-334
[58]	马勋, 袁建强, 刘宏伟, 等. 工业X光二极管重复频率实验研究[J]. 强激光与粒子束, 2016, 28:025007 doi: 10.11884/HPLPB201628.025007 Ma Xun, Yuan Jianqiang, Liu Hongwei, et al. Research on repetitive rate of industrial X-ray diode[J]. High Power Laser and Particle Beams, 2016, 28: 025007 doi: 10.11884/HPLPB201628.025007
[59]	黄新超. 国内外工业便携式X射线机的发展[J]. 无损检测, 2015, 37(10):87-90 Huang Xinchao. The development of domestic and foreign industrial portable X-ray generator[J]. Nondestructive Testing, 2015, 37(10): 87-90