Experimental verification of the consistency of the radiation flux measurement in localized spatial regions
-
摘要: 在间接驱动惯性约束聚变实验研究中，平响应X射线探测器（FXRD）和空间分辨辐射流探测器（SRFD）都是测量辐射流常用的方式，SRFD探测器可以测量空间局部范围的辐射流，具有避开非目标区域信号干扰的优势，但是长期以来，缺乏直接判断两种辐射流探测器测量一致性的实验证据。介绍了神光100 kJ装置上基于小平面靶的一致性实验，兼顾了两种探测器的视场范围和信号强度，实验结果表明两种探测器获得的辐射流平均差异约4.6%，具有较好的一致性。最后，辐射流体模拟程序给出的辐射流结果与实验整体趋势基本接近，尽管在上升沿和下降沿处存在一定差异，可能与程序精细建模有关。该工作为局部区域辐射流精密测量和相关实验研究奠定了良好基础。Abstract: In experimental studies of indirect drive inertial confinement fusion, both flat-response X-ray detector (FXRD) and space-resolving flux detector (SRFD) are commonly used to measure the radiation flux. The SRFD can measure radiation flux in localized spatial regions, thus avoiding signal disruption from non-targeted regions. However, direct experimental evidence has long been lacking to determine the consistency between SRFD and FXRD. In this paper, we introduce the experimental design of consistency measurement of the SRFD detector and FXRD detector at Shenguang 100 kJ facility, based on a small-plane target, which considers the field-of-view and signal amplitude of the two detectors. The experimental results show that the average difference in the radiation flux obtained by the two detectors is approximately 4.6%, which shows good consistency. Finally, the radiation flux given by the radiation hydrodynamic simulation is reasonably close to the experiment, with some differences in the behavior at the rising edge and decreasing edge. It is possibly related to the details of the simulation model. This work provides a good foundation for experimental studies related to the precision measurement of X-ray radiation flux in a local spatial region.
-
Key words:
- X-ray flux /
- re-emitted flux /
- diagnostic technology /
- inertial confinement fusion /
- gold planar target
-
图 1 SRFD和FXRD探测器测量一致性考核实验排布图
Figure 1. Schematic diagram of the experimental setup for the comparison of the SRFD detector and FXRD detector
图 3 FXRD、SRFD、MXRD辐射流测量结果对比(左轴)，激光平均功率(右轴)
Figure 3. Comparison of radiation flux obtained by FXRD, SRFD and MXRD (left). Average temporal shape of laser power (right)
图 4 辐射流模拟结果(左轴)，总激光功率密度(右轴)
Figure 4. Simulation of the radiation flux (left axis). Total laser power intensity (right axis)
-
[1] Li Zhichao, Jiang Xiaohua, Liu Shenye, et al. A novel flat-response x-ray detector in the photon energy range of 0.1-4 keV[J]. Review of Scientific Instruments, 2010, 81: 073504. doi: 10.1063/1.3460269 [2] 宋天明, 杨家敏, 易荣清, 等. 软X光能谱仪求辐射能流的改进方法[J]. 强激光与粒子束, 2010, 22(11):2617-2620 doi: 10.3788/HPLPB20102211.2617Song Tianming, Yang Jiamin, Yi Rongqing, et al. Improved method to calculate radiation flux from soft X-ray spectrometer[J]. High Power Laser and Particle Beams, 2010, 22(11): 2617-2620 doi: 10.3788/HPLPB20102211.2617 [3] 宋天明, 李三伟, 易荣清, 等. 蒙特卡罗采样法辐射温度测量不确定度分析[J]. 强激光与粒子束, 2012, 24(10):2351-2354 doi: 10.3788/HPLPB20122410.2351Song Tianming, Li Sanwei, Yi Rongqing, et al. Uncertainty analysis for diagnosis of radiation temperature using Monte-Carlo sampling[J]. High Power Laser and Particle Beams, 2012, 24(10): 2351-2354 doi: 10.3788/HPLPB20122410.2351 [4] 赵恒炜, 陶弢, 袁鹏, 等. 平响应X射线二极管复合滤片参数的算法优化[J]. 强激光与粒子束, 2023, 35:092003 doi: 10.11884/HPLPB202335.220406Zhao Hengwei, Tao Tao, Yuan Peng, et al. Optimization algorithm for compound filter parameters of flat response X-ray diode[J]. High Power Laser and Particle Beams, 2023, 35: 092003 doi: 10.11884/HPLPB202335.220406 [5] 丁永坤, 江少恩, 刘慎业, 等. 激光聚变研究中心聚变靶物理实验和诊断技术研究进展[J]. 强激光与粒子束, 2013, 25(12):3077-3081 doi: 10.3788/HPLPB20132512.3077Ding Yongkun, Jiang Shao’en, Liu Shenye, et al. Recent progress on physical experiment and target diagnostics in Research Center of Laser Fusion[J]. High Power Laser and Particle Beams, 2013, 25(12): 3077-3081 doi: 10.3788/HPLPB20132512.3077 [6] Schneider M B, Jones O S, Meezan N B, et al. Images of the laser entrance hole from the static x-ray imager at NIF[J]. Review of Scientific Instruments, 2010, 81: 10E538. doi: 10.1063/1.3491316 [7] Chen Hui, Woods D T, Jones O S, et al. Understanding ICF hohlraums using NIF gated laser-entrance-hole images[J]. Physics of Plasmas, 2020, 27: 022702. doi: 10.1063/1.5128501 [8] Chen Hui, Woods D T, Farmer W A, et al. Understanding the deficiency in inertial confinement fusion hohlraum x-ray flux predictions using experiments at the National Ignition Facility[J]. Physical Review E, 2024, 110: L013201. doi: 10.1103/PhysRevE.110.L013201 [9] MacLaren S A, Schneider M B, Widmann K, et al. Novel characterization of capsule x-ray drive at the National Ignition Facility[J]. Physical Review Letters, 2014, 112: 105003. doi: 10.1103/PhysRevLett.112.105003 [10] Ren Kuan, Liu Shenye, Hou Lifei, et al. Direct measurement of x-ray flux for a pre-specified highly-resolved region in hohlraum[J]. Optics Express, 2015, 23(19): A1072-A1080. doi: 10.1364/OE.23.0A1072 [11] Ren Kuan, Liu Shenye, Xie Xufei, et al. First exploration of radiation temperatures of the laser spot, re-emitting wall and entire hohlraum drive source[J]. Scientific Reports, 2019, 9: 5050. doi: 10.1038/s41598-019-41424-6 [12] 袁永腾, 侯立飞, 涂绍勇, 等. X光能点、放大倍率及针孔尺寸对空间分辨的影响[J]. 强激光与粒子束, 2014, 26:022001 doi: 10.3788/HPLPB20142602.22001Yuan Yongteng, Hou Lifei, Tu Shaoyong, et al. Effect of X-ray wavelength, pinhole aperture and magnification on spatial resolution[J]. High Power Laser and Particle Beams, 2014, 26: 022001 doi: 10.3788/HPLPB20142602.22001 [13] Xie Xufei, Hou Lifei, Cai Hongbo, et al. Measurement of time-dependent drive flux on the capsule for indirectly driven inertial confinement fusion experiments[J]. Physical Review Letters, 2022, 128: 075001. doi: 10.1103/PhysRevLett.128.075001 [14] 陈伯伦, 杨正华, 胡昕, 等. 神光系列激光装置内爆烧蚀压缩过程测量[J]. 强激光与粒子束, 2020, 32:092010Chen Bolun, Yang Zhenghua, Hu Xin, et al. Implosion ablated convergence measurement on Shenguang laser facilities[J]. High Power Laser and Particle Beams, 2020, 32: 092010 [15] 涂绍勇, 蒋炜, 尹传盛, 等. 激光间接驱动柱几何内界面减速段的流体力学不稳定性实验研究[J]. 强激光与粒子束, 2024, 36:122001Tu Shaoyong, Jiang Wei, Yin Chuansheng, et al. Experimental study on the hydrodynamic instability of the decelerated inner interface in indirect-driven cylindrical implosions[J]. High Power Laser and Particle Beams, 2024, 36: 122001 [16] 李欣, 戴振生, 郑无敌. ICF点火靶定标关系与稳定性优化设计研究[J]. 强激光与粒子束, 2015, 27:032012 doi: 10.3788/HPLPB20152703.32012Li Xin, Dai Zhensheng, Zheng Wudi. Scaling formula of ICF ignition targets and study of targets optimized in stability performance[J]. High Power Laser and Particle Beams, 2015, 27: 032012 doi: 10.3788/HPLPB20152703.32012 [17] Xie X, Ren K, Du H, et al. Investigation of the geometrical efficiency for the two-dimensional space-resolving flux detector in inertial confinement fusion[J]. Journal of Instrumentation, 2017, 12: P08021. doi: 10.1088/1748-0221/12/08/P08021 [18] Zheng Wanguo, Zhang X, Wei X, et al. Status of the SG-III solid-state laser facility[J]. Journal of Physics: Conference Series, 2008, 112: 032009. doi: 10.1088/1742-6596/112/3/032009 [19] Ramis R, Meyer-Ter-Vehn J. MULTI-IFE—a one-dimensional computer code for Inertial Fusion Energy (IFE) target simulations[J]. Computer Physics Communications, 2016, 203: 226-237. doi: 10.1016/j.cpc.2016.02.014 [20] Ramis R, Schmalz R, Meyer-Ter-Vehn J. MULTI — a computer code for one-dimensional multigroup radiation hydrodynamics[J]. Computer Physics Communications, 1988, 49(3): 475-505. doi: 10.1016/0010-4655(88)90008-2 [21] Meng Guangwei, She Jun, Song Tianming, et al. Theoretical investigations on x-ray transport in radiation transport experiments on the Shenguang-III prototype laser facility[J]. Matter and Radiation at Extremes, 2022, 7: 025901. doi: 10.1063/5.0043745 [22] Zhang Zhiyu, Zhao Yang, Han Xiaoying, et al. Self-consistent and precise measurement of time-dependent radiative albedo of gold based on specially symmetrical triple-cavity Hohlraum[J]. Matter and Radiation at Extremes, 2024, 9: 037601. doi: 10.1063/5.0177038 [23] Xie Xufei, Wu Changshu, Chen Jinwen, et al. Characterization of radiation drive by measuring the localized re-emitted flux from the capsule in inertial confinement fusion experiments[J]. Nuclear Fusion, 2022, 62: 126008. doi: 10.1088/1741-4326/ac8fa2 -
下载:
点击查看大图
图(5)
计量
- 文章访问数: 10
- HTML全文浏览量: 8
- PDF下载量: 0
- 被引次数: 0
