首页|Characterization of radiation drive by measuring the localized re-emitted flux from the capsule in inertial confinement fusion experiments

Characterization of radiation drive by measuring the localized re-emitted flux from the capsule in inertial confinement fusion experiments

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We present for the first time characterization of the time-dependent radiation drive on the capsule by measuring the localized re-emitted flux at Shenguang-Ⅲ prototype laser facility. The drive flux was obtained with measured re-emitted flux from the capsule and radiation fluxes from the hohlraum wall, in combination with radiation hydrodynamic simulations. It revealed that the temporal behavior of the drive flux was quite distinguished from the radiation flux from the hohlraum wall, and the drive flux was approximately 6 eV (12 eV) lower than the measured flux at up 55° (up 30°). This technique presents a novel way for the assessment of the drive flux, both in cylindrical hohlraums and novel hohlraums with more than two laser entrance holes. Pre-processed radiation hydrodynamic simulations indicate that this technique can also be applied in integrated implosion experiments utilizing standard fusion capsule with carbon-hydrogen ablators.

inertial confinement fusionradiation fluxradiation hydrodynamic simulationsdrive fluxdrive deficithohlraum physics

Xufei Xie、Changshu Wu、Jinwen Chen、Shenye Liu、Lifei Hou、Huabin Du、Hongbo Cai、Liang Guo、Kuan Ren、Zhichao Li、Dong Yang、Sanwei Li、Fengjun Ge、Xin Li、Yunbao Huang、Longfei Jing、Wanli Shang、Yaoyuan Liu、Xiaohua Jiang、Xiayu Zhan、Yimeng Yang、Feng Wang、Haien He、Shiyang Zou、Jiamin Yang、Shaoen Jiang、Baohan Zhang、Yongkun Ding

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Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China

Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China

Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China, Center for Applied Physics and Technology, HEDPS, and College of Engineering, Peking University, Beijing 100871, China

Mechatronics School of Guangdong University of Technology, Guangzhou 510080, China

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2022

10.1088/1741-4326/ac8fa2

Nuclear fusion

Nuclear fusion

SCI
ISSN：0029-5515
年,卷(期)：2022.62(12)
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