Collective energy-spectrum broadening of a proton beam in a gas-discharge plasma

doi:10.1103/PhysRevE.103.063216

	Collective energy-spectrum broadening of a proton beam in a gas-discharge plasma
	Cheng, Rui 1,2,7; Hu, Zhang-Hu 3; Hui, De-Xuan 3; Zhao, Yong-Tao 1,4; Chen, Yan-Hong 1; Gao, Fei 3; Lei, Yu 1; Wang, Yu-Yu 1; Zhu, Bing-Li 5; Yang, Yang 5
刊名	PHYSICAL REVIEW E
	2021-06-28
卷号	103 期号:6 页码:5
ISSN号	2470-0045
DOI	10.1103/PhysRevE.103.063216
通讯作者	Hu, Zhang-Hu(zhanghu@dlut.edu.cn)
英文摘要	An accurate understanding of ion-beam transport in plasmas is crucial for applications in inertial fusion energy and high-energy-density physics. We present an experimental measurement on the energy spectrum of a proton beam at 270 keV propagating through a gas-discharge hydrogen plasma. We observe the energies of the beam protons changing as a function of the plasma density and spectrum broadening due to a collective beam-plasma interaction. Supported by linear theory and three-dimensional particle-in-cell simulations, we attribute this energy modulation to a two-stream instability excitation and further saturation by beam ion trapping in the wave. The widths of the energy spectrum from both experiment and simulation agree with the theory.
资助项目	National Key R&D Program of China[2017YFA0402300] ; National Natural Science Foundation of China[11775042] ; National Natural Science Foundation of China[11775278] ; National Natural Science Foundation of China[11875096] ; National Natural Science Foundation of China[12075046] ; National Natural Science Foundation of China[U1532263] ; National Natural Science Foundation of China[U1832175]
WOS关键词	INTENSE ION-BEAMS ; NEUTRALIZATION ; PROPAGATION
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000677991000003
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/136732]
专题	中国科学院近代物理研究所
通讯作者	Hu, Zhang-Hu
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Adv Energy Sci & Technol Guangdong Lab, Huizhou 516003, Peoples R China 3.Dalian Univ Technol, Sch Phys, Dalian 116024, Peoples R China 4.Xi An Jiao Tong Univ, Sch Phys, MOE Key Lab Nonequilibrium Synth & Modulat Conden, Xian 710049, Peoples R China 5.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710049, Peoples R China 6.Northwest Normal Univ, Coll Phys & Elect Engn, Lanzhou 730000, Peoples R China 7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Rui,Hu, Zhang-Hu,Hui, De-Xuan,et al. Collective energy-spectrum broadening of a proton beam in a gas-discharge plasma[J]. PHYSICAL REVIEW E,2021,103(6):5.
APA	Cheng, Rui.,Hu, Zhang-Hu.,Hui, De-Xuan.,Zhao, Yong-Tao.,Chen, Yan-Hong.,...&Yang, Jie.(2021).Collective energy-spectrum broadening of a proton beam in a gas-discharge plasma.PHYSICAL REVIEW E,103(6),5.
MLA	Cheng, Rui,et al."Collective energy-spectrum broadening of a proton beam in a gas-discharge plasma".PHYSICAL REVIEW E 103.6(2021):5.