强激光与粒子束2024，Vol.36Issue(1)：112-116,5.DOI:10.11884/HPLPB202436.230440
拍瓦激光驱动纳米刷靶高品质质子束的产生
Generation of high-quality proton beam in nanobrush targets driven by PW laser pulse
摘要
Abstract
High-energy proton beam sources produced by ultra-intense laser acceleration have wide application prospects in basic physics,materials science,biomedical research and other fields.Based on SILEX-Ⅱ device of Laser Fusion Research Center,the experimental studies on proton acceleration of nanobrush targets driven by high-contrast femtosecond PW laser pulse have been carried out.Plasma mirror technology was used to further improve the laser contrast,which effectively reduces the influence of pre-pulse on the structure of the nanobrush target.Compared with planar target,the proton cut-off energy of nanobrush targets increased to 1.5 times,and the proton beam yield increased by nearly one order of magnitude.This successfully verifies the enhancement of nanobrush targets on laser ion acceleration at ultra-high power density,and the improved uniformity of the proton beam spatial distribution.These results provide a technical way for the generation and application of high-quality proton beam sources.关键词
纳米刷靶/激光离子加速/等离子体镜/高品质质子束Key words
nanobrush targets/laser ion acceleration/plasma mirror/high-quality proton beam分类
物理学引用本文复制引用
杨月,温家星,谭放,闫永宏,王子涛,周凯南,陈忠靖,吴玉迟,周维民,谷渝秋,赵宗清,孙斌,邓志刚,滕建,贺书凯,张博,王少义,张智猛,于明海..拍瓦激光驱动纳米刷靶高品质质子束的产生[J].强激光与粒子束,2024,36(1):112-116,5.基金项目
国家自然科学基金项目(11975214、12175212) （11975214、12175212）
