Application of the space-resolv!ig flux delector for radiation measurenmnts from an octahedral-aperture spherical hohlraum

作者：Xie, Xufei; Du, Huabing; Chen, Jinwen; Liu, Shenye^*; Li, Zhichao; Yang, Dong; Huang, Yunbao; Ren, Kuan; Hou, Lifei; Li, Sanwei; Guo, Liang; Jiang, Xiaohua; Huo, Wenyi; Chen, Yaohua; Ren, Guoli; Lan, Ke; Wang, Feng; Jiang, Shaoen; Ding, Yongkun

来源：Review of Scientific Instruments, 2018, 89(6): 063502.

DOI：10.1063/1.5028124

• INERTIAL CONFINEMENT FUSION
• PHYSICS BASIS
• IGNITION
• DRIVE
• TARGETS

Space-resolving flux detection is an important technique for the diagnostic of the radiation field within the hohlraum in inertial confinement fusion, especially for the radiation field diagnostic in the novel spherical hohlraum with octahedral six laser entrance holes (LEHs), where localized measurements are necessary for the discrimination of the radiation flux from different LEHs. A novel space-resolving flux detector (SRFD) is developed at the SG-III laser facility for the radiation flux measurement in the first campaign of the octahedral spherical hohlraum energetics experiment. The principle and configuration of the SRFD system is introduced. The radiation flux from the wall of a gas-filled octahedral spherical hohlraum is measured for the first time by placing the SRFD system at the equatorial position of the SG-III laser facility, aiming at the hohlraum wall through one of the six LEHs. The absolute radiation flux from the re-emission area on the hohlraum wall is measured, and good consistency is found between the experimental data and the calculated data from a three-dimensional view factor analysis. Published by AIP Publishing.

• 出版日期2018-6
• 单位中国工程物理研究院激光聚变研究中心; 北京应用物理与计算数学研究所; 北京大学; 广东工业大学; 上海交通大学; 中国工程物理研究院