On intense proton beam generation and transport in hollow cones

作     者：J.J.Honrubia A.Morace M.Murakami J.J. Honrubia;A. Morace;M. Murakami

作者机构：ETSI Aeronautica y del EspacioUniversidad Politecnica de MadridMadridSpain Institute of Laser EngineeringOsaka UniversityOsakaJapan 

出 版 物：《Matter and Radiation at Extremes》 (极端条件下的物质与辐射（英文）)

年 卷 期：2017年第2卷第1期

页      面：28-36页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 0807[工学-动力工程及工程热物理] 0827[工学-核科学与技术] 0703[理学-化学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：This work has been partially supported by the grant numberENE2014-54960-R of the Spanish Ministry of Economy andCompetitiveness the COST Action MP1208 and the Co-ordinated Research Project of IAEA F13016 

主　　题：Inertial fusion energy Ion fast ignition Laser driven ion acceleration 

摘      要：Proton generation,transport and interaction with hollow cone targets are investigated by means of two-dimensional PIC simulations.A scaled-down hollow cone with gold walls,a carbon tip and a curved hydrogen foil inside the cone has been *** acceleration is driven by a 10^(20) W·cm^(-2) and 1 ps laser pulse focused on the hydrogen *** show an important surface current at the cone walls which generates a magnetic *** magnetic field is dragged by the quasi-neutral plasma formed by fast protons and co-moving electrons when they propagate towards the cone *** a result,a tens of kT B z field is set up at the cone tip,which is strong enough to deflect the protons and increase the beam divergence *** propose using heavy materials at the cone tip and increasing the laser intensity in order to mitigate magnetic field generation and proton beam divergence.