The influence of target material and thickness on proton energy and angular distribution

被引：3

作者：

Su LuNing ^{[1
]}

Liu BiCheng ^{[1
,2
]}

Lin XiaoXuan ^{[1
]}

Liu Feng ^{[1
]}

Du Fei ^{[1
]}

Liu XiaoLong ^{[1
]}

Zheng Yi ^{[1
]}

Ge XuLei ^{[1
]}

Li YuTong ^{[1
]}

Sheng ZhengMing ^{[1
,3
,4
]}

Chen LiMing ^{[1
]}

Wang WeiMin ^{[1
]}

Ma JingLong ^{[1
]}

Lu Xin ^{[1
]}

Wei ZhiYi ^{[1
]}

Chen JiaEr ^{[2
]}

Zhang Jie ^{[1
,3
,4
]}

机构：

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

[2] Peking Univ, Inst Heavy Ion Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China

[3] Shanghai Jiao Tong Univ, Key Lab Laser Plasmas, Minist Educ, Shanghai 200240, Peoples R China

[4] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China

来源：

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY | 2013年 / 56卷 / 02期

基金：

中国国家自然科学基金;

关键词：

laser-driven; proton; acceleration; LASER-PULSES; PLASMA; DENSITY;

D O I：

10.1007/s11433-012-4961-9

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The paper has studied the influence of target material and thickness on energy and angular distributions of the protons generated by using an 800 nm, 60 fs, 0.24 J laser pulse to irradiate solid target foils. The results show that the initial density and thickness of the targets will affect the formation of the acceleration sheath fields in the target normal direction. For the same target thickness, using lower density target materials can obtain a higher proton maximum energy. However, lower density targets tend to be deformed due to the shock waves launched by the laser pulses, making the proton spatial distribution more divergent.

引用

页码：457 / 461

页数：5

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