Optimization of proton beam quality by obliquely incident laser pre-pulse

被引：2

作者：

Rahman, O. ^{[1
,2
,3
]}

Li, Tian-Cheng ^{[1
]}

Sheng, Zheng-Mao ^{[1
]}

机构：

[1] Zhejiang Univ, Inst Fus Theory & Simulat, Sch Phys, Hangzhou 310058, Peoples R China

[2] Zhejiang Univ, Sch Math Sci, Hangzhou 310058, Peoples R China

[3] Mawlana Bhashani Sci & Technol Univ, Dept Phys, Tangail 1902, Bangladesh

来源：

PHYSICS OF PLASMAS | 2023年 / 30卷 / 05期

基金：

中国国家自然科学基金;

关键词：

ACCELERATION; GENERATION; ENHANCEMENT; REGIME;

D O I：

10.1063/5.0130810

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

An investigation has been made to enhance the proton acceleration through the use of an additional obliquely incident lower intense pre-pulse. We observed by means of two-dimensional particle-in-cell simulation that the surface plasma waves can be generated on a flat target using a low-intensity pre-pulse, which is beneficial for enhancing the laser self-focusing and consequently boosting the proton acceleration. We noticed that the proton acceleration is driven by a hybrid acceleration process. The obtained proton beam peak energy and the maximum energy are found to increase by about 205% and 68%, respectively, for the case with pre-pulse in comparison to the cases where the pre-pulse is absent. Moreover, significant degradation of the proton beam energy spread and angular divergence are also seen.

引用

页数：6