High-flux angularly uniform proton beams from multiple laser interaction with wire-hemisphere targets  

作　　者：Xiangrui Jiang Debin Zou Mingyang Yu Na Zhao Lixiang Hu Jianming Ouyang Fuqiu Shao Wenhui Tang Tongpu Yu 

机构地区：[1]Department of Physics,National University of Defense Technology,Changsha,China [2]Department of Nuclear Science and Technology,National University of Defense Technology,Changsha,China [3]College of Engineering Physics,Shenzhen Technology University,Shenzhen,China [4]School of Microelectronics and Physics,Hunan University of Technology and Business,Changsha,China

出　　处：《High Power Laser Science and Engineering》2024年第6期97-105,共9页高功率激光科学与工程(英文版)

基　　金：supported by the National Natural Science Foundation of China(Nos.12105362,12175310,12275356and 12305268);the Natural Science Foundation of Hunan Province(Nos.2022JJ20042,2021JJ40653 and2020JJ5031);the Scientific Research Foundation of Hunan Provincial Education Department(No.22B0655);the Hunan Provincial Innovation Foundation for Postgraduate(No.CX20210006)

摘　　要：A scheme for generating high-flux angularly uniform proton beams with high laser-to-proton energy conversion efficiency is proposed. Three laser beams are focused on a microwire array attached to a solid-density hemispheric target. The laser-driven hot electrons from the front of the microwire hemisphere generate a hot-electron sheath in the hollow behind it, so that the protons on its back are accelerated by target normal sheath acceleration. The accelerated protons are of high flux, as well as angularly and energetically uniform. The scheme should be useful for applications involving warm dense matter, such as isochoric heating and modification of materials, as well as for proton therapy and inertial confinement fusion.

关 键 词：angular uniformity high-flux proton beams multiple lasers 

分 类 号：O572.341[理学—粒子物理与原子核物理] TN249[理学—物理]