Achieving Stable Radiation Pressure Acceleration of Heavy Ions via Successive Electron Replenishment from Ionization of a High-Z Material Coating

被引：51

作者：

Shen, X. F. ^{[1
,2
,3
]}

Qiao, B. ^{[1
,2
,3
,4
]}

Zhang, H. ^{[1
,2
,5
]}

Kar, S. ^{[6
]}

Zhou, C. T. ^{[1
,2
,5
]}

Chang, H. X. ^{[1
,2
]}

Borghesi, M. ^{[6
]}

He, X. T. ^{[1
,2
,5
]}

机构：

[1] Peking Univ, HEDPS, State Key Lab Nucl Phys & Technol, Ctr Appl Phys & Technol, Beijing 100871, Peoples R China

[2] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

[3] Shanghai Jiao Tong Univ, Collaborat Innovat Ctr IFSA CICIFSA, Shanghai 200240, Peoples R China

[4] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China

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

[6] Queens Univ Belfast, Sch Math & Phys, Ctr Plasma Phys, Belfast BT7 1NN, Antrim, North Ireland

来源：

PHYSICAL REVIEW LETTERS | 2017年 / 118卷 / 20期

基金：

中国国家自然科学基金; 英国工程与自然科学研究理事会;

关键词：

LASER; SIMULATIONS;

D O I：

10.1103/PhysRevLett.118.204802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A method to achieve stable radiation pressure acceleration (RPA) of heavy ions from laser-irradiated ultrathin foils is proposed, where a high-Z material coating in front is used. The coated high-Z material, acting as a moving electron repository, continuously replenishes the accelerating heavy ion foil with comoving electrons in the light-sail acceleration stage due to its successive ionization under laser fields with Gaussian temporal profile. As a result, the detrimental effects such as foil deformation and electron loss induced by the Rayleigh-Taylor-like and other instabilities in RPA are significantly offset and suppressed so that stable acceleration of heavy ions are maintained. Particle-in-cell simulations show that a monoenergetic Al13+ beam with peak energy 3.8 GeV and particle number 10(10) (charge > 20 nC) can be obtained at intensity 10(22) W/cm(2).

引用

页数：5

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