Simulations of hot electron transport in radiation-ablated plasma

作     者：赵斌 陶弢 闫锐 郑坚 Bin Zhao;Tao Tao;Rui Yan;Jian Zheng

作者机构：Department of Mathematics and PhysicsNanjing Institute of TechnologyNanjing 211167China IFSA Collaborative Innovation CenterShanghai Jiao Tong UniversityShanghai 200240China Department of Modern MechanicsUniversity of Science and Technology of ChinaHefei 230026China School of Nuclear Science and TechnologyUniversity of Science and Technology of ChinaHefei 230026China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2023年第32卷第8期

页      面：336-341页

核心收录：

学科分类：08[工学] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 0702[理学-物理学] 

基　　金：Project supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDA25050600) the DCI joint team。 

主　　题：hot electron ablation indirect-drive ICF radiation-ablated plasmas 

摘      要：The transport of hot electrons in inertial confinement fusion(ICF)is integrated issue due to the coupling of hydrodynamic evolution and many physical processes.A hot electron transport code is developed and coupled with the radiation hydrodynamic code MULTI1D in this study.Using the code,the slowing-down process and ablation process of the hot electron beam are simulated.The ablation pressure scaling law of hot electron beam is confirmed in our simulations.The hot electron transport is simulated in the radiation-ablated plasmas relevant to indirect-drive ICF,where the spatial profile of hot electron energy deposition is presented around the shock compressed region.It is shown that the hot electron can prominently increase the total ablation pressure in the early phase of radiation-ablated plasma.So,our study suggests that a potential-driven symmetric mechanism may occur under the irradiation of asymmetric hot electron beam.The possible degradation from the hot electron transport and preheating is also discussed.