Enhancement of Magnetic Vortex Acceleration by Laser Interaction with Near-Critical Density Plasma inside a Hollow Conical Target

被引：2

作者：

Li, Xueming ^{[1
]}

Chao, Yue ^{[2
,3
]}

Xie, Rui ^{[4
]}

Liu, Deji ^{[1
]}

Zhou, Yuanzhi ^{[2
,3
]}

Zhang, Shutong ^{[2
,3
]}

Yang, Tian ^{[1
]}

Liu, Zhanjun ^{[1
,3
,5
]}

Cao, Lihua ^{[1
,3
,5
]}

Zheng, Chunyang ^{[1
,3
,5
]}

机构：

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

[2] Peking Univ, Sch Phys, HEDPS, Ctr Appl Phys & Technol, Beijing 100871, Peoples R China

[3] Peking Univ, Coll Engn, Beijing 100871, Peoples R China

[4] China Acad Engn Phys, Inst Mat, Jiangyou 621908, Sichuan, Peoples R China

[5] Peking Univ, Ctr Appl Phys & Technol, HEDPS, Beijing 100871, Peoples R China

来源：

LASER AND PARTICLE BEAMS | 2022年 / 2022卷

基金：

中国国家自然科学基金;

关键词：

ION-ACCELERATION; GENERATION; BEAMS;

D O I：

10.1155/2022/5671790

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effects of magnetic vortex acceleration (MVA) are investigated with two-dimensional particle-in-cell (PIC) simulations by laser interaction with near-critical density (NCD) plasma inside a hollow conical plasma. Energetic and collimated proton beams can be accelerated by a longitudinal charge-separation field. Energetic protons with a peak energy of 220 MeV are produced in PIC simulations. Compared with a uniform NCD plasma, both the cutoff energy and collimation of proton beams are improved remarkably. Furthermore, the influence of different gap sizes of cone tip is taken into account. For optimizing magnetic vortex acceleration, the gap size of the cone tip is suggested to match the focal spot size of laser pulse.

引用

页数：6

共 31 条

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