Observation of a high degree of stopping for laser-accelerated intense proton beams in dense ionized matter

被引：52

作者：

Ren, Jieru ^{[1
]}

Deng, Zhigang ^{[2
]}

Qi, Wei ^{[2
]}

Chen, Benzheng ^{[1
,3
]}

Ma, Bubo ^{[1
]}

Wang, Xing ^{[1
]}

Yin, Shuai ^{[1
]}

Feng, Jianhua ^{[1
]}

Liu, Wei ^{[1
,4
]}

Xu, Zhongfeng ^{[1
]}

Hoffmann, Dieter H. H. ^{[1
]}

Wang, Shaoyi ^{[2
]}

Fan, Quanping ^{[2
]}

Cui, Bo ^{[2
]}

He, Shukai ^{[2
]}

Cao, Zhurong ^{[2
]}

Zhao, Zongqing ^{[2
]}

Cao, Leifeng ^{[2
]}

Gu, Yuqiu ^{[2
]}

Zhu, Shaoping ^{[2
,5
,6
]}

Cheng, Rui ^{[7
]}

Zhou, Xianming ^{[1
,8
]}

Xiao, Guoqing ^{[7
]}

Zhao, Hongwei ^{[7
]}

Zhang, Yihang ^{[9
,10
]}

Zhang, Zhe ^{[9
,10
]}

Li, Yutong ^{[9
,10
]}

Wu, Dong ^{[3
]}

Zhou, Weimin ^{[2
]}

Zhao, Yongtao ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Phys, MOE Key Lab Nonequilibrium Synth & Modulat Conden, Xian 710049, Peoples R China

[2] China Acad Engn Phys, Laser Fus Res Ctr, Sci & Technol Plasma Phys Lab, Mianyang 621900, Sichuan, Peoples R China

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

[4] Xian Technol Univ, Xian 710021, Peoples R China

[5] Inst Appl Phys & Computat Math, Beijing 100094, Peoples R China

[6] China Acad Engn Phys, Grad Sch, Beijing 100088, Peoples R China

[7] Chinese Acad Sci, Inst Modern Phys, Lanzhou 710049, Peoples R China

[8] Xianyang Normal Univ, Xianyang 712000, Peoples R China

[9] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

[10] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China

来源：

NATURE COMMUNICATIONS | 2020年 / 11卷 / 01期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

ENERGY-LOSS; HEAVY-IONS; PLASMA; FUSION; ELECTRON; DRIVEN; RADIOGRAPHY; PARTICLES; RADIATION; IGNITION;

D O I：

10.1038/s41467-020-18986-5

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Intense particle beams generated from the interaction of ultrahigh intensity lasers with sample foils provide options in radiography, high-yield neutron sources, high-energy-density-matter generation, and ion fast ignition. An accurate understanding of beam transportation behavior in dense matter is crucial for all these applications. Here we report the experimental evidence on one order of magnitude enhancement of intense laser-accelerated proton beam stopping in dense ionized matter, in comparison with the current-widely used models describing individual ion stopping in matter. Supported by particle-in-cell (PIC) simulations, we attribute the enhancement to the strong decelerating electric field approaching 1 GV/m that can be created by the beam-driven return current. This collective effect plays the dominant role in the stopping of laser-accelerated intense proton beams in dense ionized matter. This finding is essential for the optimum design of ion driven fast ignition and inertial confinement fusion.

引用

页数：7

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