Triggering and anti-interfering technology of diagnostic systems used in Z-pinch experiments
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摘要: 通过对时间关联信号的筛选、转换和延时等方法建立了用于8 MA脉冲功率装置上Z箍缩实验中诊断设备的触发网络，其输出触发信号与被测X射线之间的时间抖动小于2 ns，满足了纳秒级的诊断时间同步要求。采用屏蔽、接地等有效措施基本消除了放电产生的强电磁环境以及其它杂散信号对触发线缆和诊断设备的干扰，保证了诊断设备的正常工作和实验数据的质量。Abstract: The pulse power device will produce a strong electromagnetic environment in the process of discharge, which interferes with diagnostic systems in the experiment, leading to their failure to work properly. By selecting, transforming and delaying the time correlated signals, a trigger network has been established for diagnostic instruments in high energy density experiments on an 8 MA pulsed power device. The jitter of time interval between the trigger signal and the X-ray pulse is less than 2 ns, which meets the requirement to synchronize diagnostics with time resolution of nanosecond. Shielding and grounding techniques are used and effectively eliminate the jamming of strong electromagnetic environment and other stray signals produced by the discharge of the device, which also ensure the normal operation of diagnostic instruments and the quality of the experimental data.
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图 2 实验中测量的空间电磁信号以及信号的频谱特征
Figure 2. Electromagnetic signal measured in the experiment and the spectrum character of the signal
表 1 Z箍缩实验参试诊断系统
Table 1. Diagnostic systems used in Z-pinch experiments
diagnostic systems application laser probe system laser shadowgraph of imploding plasmas and density of coronal plasma or precursor gated X-ray pinhole camera X-ray framing image large format time-resolved pinhole camera high-resolution X-ray framing image X-ray streak camera X-ray streak image optical streak camera radial optical streak image multi-spectral or monochromatic X-ray time-integrated camera high-resolution time-integrated images of various spectrum flat spectral response XRD detector soft X-ray power and energy bolometer soft X-ray energy scintillator detector soft X-ray power and energy filtered XRD array soft X-ray power and energy time-integrated crystal spectrometer time-integrated X-ray line spectrum time-resolved crystal spectrometer time-resolved X-ray line spectrum transmission grating spectrometer time-integrated continuous spectrum axial gated X-ray pinhole camera axial X-ray framing image axial XRD array axial soft X-ray power and energy axial crystal spectrometer axial time-integrated X-ray spectrum thermo luminescent dosimeter radiation dose of gamma ray filtered Si-PIN array radiation dose rate of gamma ray 
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[1] Slutz S A, Herrmann M C, Vesey R A, et al. Pulsed-power-driven cylindrical liner implosions of laser preheated fuel magnetized with an axial field[J]. Physics of Plasmas, 2010, 17: 056303. doi: 10.1063/1.3333505 [2] Lebedev S V, Ciardi A, Ampleford D J, et al. Production of radiatively cooled hypersonic plasma jets and links to astrophysical jets[J]. Plasma Physics and Controlled Fusion, 2005, 47: B465-B479. doi: 10.1088/0741-3335/47/12B/S33 [3] Bailey J E, Chandler G A, Cohen D, et al. Radiation science using Z-pinch X rays[J]. Physics of Plasmas, 2002, 9(5): 2186-2194. doi: 10.1063/1.1459454 [4] 郑志坚, 丁永坤, 丁耀南, 等. 激光惯性约束聚变综合诊断系统[J]. 强激光与粒子束, 2003, 15(11):1073-1078. (Zheng Zhijian, Ding Yongkun, Ding Yaonan, et al. Recent progress and application of diagnostic technique in laser fusion[J]. High Power Laser and Particle Beams, 2003, 15(11): 1073-1078 [5] Nash T J, Derzon M S, Chandler G A, et al. Diagnostics on Z (invited)[J]. Review of Scientific Instruments, 2001, 72(1): 1167-1172. doi: 10.1063/1.1322618 [6] Deng Jianjun, Xie Weiping, Feng Suping, et al. Initial performance of the Primary Test Stand[C]//IEEE Transactions on Plasma Science. 2013, 41: 2580-2583. [7] Huang Xianbin, Zhou Shaotong, Dan Jiakun, et al. Preliminary experimental results of tungsten wire-array Z-pinches on primary test stand[J]. Physics of Plasmas, 2015, 22: 072707. doi: 10.1063/1.4926532 [8] Huang Xianbin, Ren Xiaodong, Dan Jiakun, et al. Radiation characteristics and implosion dynamics of Z-pinch dynamic hohlraums performed on PTS facility[J]. Physics of Plasmas, 2017, 24: 092704. doi: 10.1063/1.4998619 [9] Schneider M B, Sorce C, Loughman K, et al. Shielding a streak camera from hard X rays[J]. Review of Scientific Instruments, 2004, 75(10): 4040-4041. doi: 10.1063/1.1788889 [10] Ren X D, Huang X B, Zhou S T, et al. Diagnostics for Z-pinch implosion experiments on PTS[C]//9Th International Conference on Dense Z Pinches. 2014, 1639: 142-145. [11] 黄显宾, 邓建军, 杨礼兵, 等. “阳”加速器上的Z箍缩诊断技术[J]. 强激光与粒子束, 2010, 22(4):870-874. (Huang Xianbin, Deng Jianjun, Yang Libing, et al. Diagnostics on Yang accelerator for Z-pinch experiment[J]. High Power Laser and Particle Beams, 2010, 22(4): 870-874 doi: 10.3788/HPLPB20102204.0870 [12] 周少彤, 徐强, 黄显宾, 等. “聚龙一号”装置不同光子能段X射线积分成像系统研制[J]. 强激光与粒子束, 2015, 27:112004. (Zhou Shaotong, Xu Qiang, Huang Xianbin, et al. Development of multi-spectral X-ray time-integrated imaging system on primary test stand[J]. High Power Laser and Particle Beams, 2015, 27: 112004 [13] 周少彤. 基于闪烁体转换的软X射线辐射时空分辨诊断技术研究[D]. 绵阳: 中国工程物理研究院研究生院, 2018: 9-40.Zhou Shaotong. Temporal and spatial resolved diagnostic of soft X-ray based on the conversion of scintillator. Mianyang: Graduate School of China Academy of Engineering Physics, 2018: 9-40 [14] 张思群, 李晶, 王昆仑, 等. 应用于PTS装置的多通道X射线二极管阵列谱仪[J]. 强激光与粒子束, 2016, 28:085002. (Zhang Siqun, Li Jing, Wang Kunlun, et al. Multi-channel filtered X-ray diode array used on PTS facility[J]. High Power Laser and Particle Beams, 2016, 28: 085002 [15] 王昆仑, 任晓东, 黄显宾, 等. 用于“聚龙一号”上软X光通量探测的平响应X光二极管[J]. 强激光与粒子束, 2016, 28:045009. (Wang Kunlun, Ren Xiaodong, Huang Xianbin, et al. Flat spectral response XRD for diagnosing soft X-ray f1ux on PTS[J]. High Power Laser and Particle Beams, 2016, 28: 045009 doi: 10.11884/HPLPB201628.125009 [16] 任晓东, 黄显宾, 王昆仑, 等. 软X射线测量用电阻式薄膜量热计[J]. 强激光与粒子束, 2016, 28:075007. (Ren Xiaodong, Huang Xianbin, Wang Kunlun, et al. A resistive bolometer for measuring soft X-ray radiation energy[J]. High Power Laser and Particle Beams, 2016, 28: 075007 [17] 蔡红春, 黄显宾, 段书超, 等. 时间分辨晶体谱仪在Z箍缩等离子体中的应用[J]. 强激光与粒子束, 2013, 25(9):2385-2388. (Cai Hongchun, Huang Xianbin, Duan Shuchao, et al. Application of time-resolved crystal spectrometer in Z-pinch plasmas[J]. High Power Laser and Particle Beams, 2013, 25(9): 2385-2388 doi: 10.3788/HPLPB20132509.2385 [18] 李晶, 黄显宾, 谢卫平, 等. “阳”加速器Z箍缩实验用透射光栅谱仪[J]. 强激光与粒子束, 2010, 22(3):683-686. (Li Jing, Huang Xianbin, Xie Weiping, et al. Transmission grating spectrometer for Z-pinch experiment on Yang accelerator[J]. High Power Laser and Particle Beams, 2010, 22(3): 683-686 doi: 10.3788/HPLPB20102203.0683 -
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