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Wakefield and stopping power of a hydrogen ion beam pulse with low drift velocity in hydrogen plasmas

Published online by Cambridge University Press:  23 March 2015

Ling-Yu Zhang ,
Xiao-Ying Zhao ,
Xin Qi ,
Guo-Qing Xiao ,
Wen-Shan Duan  and
Lei Yang
Ling-Yu Zhang
Affiliation:
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China Joint Laboratory of Atomic and Molecular Physics of NWNU & IMP CAS, Northwest Normal University, Lanzhou, China University of Chinese Academy of Sciences, Beijing, China
Xiao-Ying Zhao
Affiliation:
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China Joint Laboratory of Atomic and Molecular Physics of NWNU & IMP CAS, Northwest Normal University, Lanzhou, China
Xin Qi*
Affiliation:
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China Joint Laboratory of Atomic and Molecular Physics of NWNU & IMP CAS, Northwest Normal University, Lanzhou, China
Guo-Qing Xiao
Affiliation:
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China Joint Laboratory of Atomic and Molecular Physics of NWNU & IMP CAS, Northwest Normal University, Lanzhou, China
Wen-Shan Duan
Affiliation:
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China Joint Laboratory of Atomic and Molecular Physics of NWNU & IMP CAS, Northwest Normal University, Lanzhou, China
Lei Yang*
Affiliation:
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China Joint Laboratory of Atomic and Molecular Physics of NWNU & IMP CAS, Northwest Normal University, Lanzhou, China Department of Physics, Lanzhou University, Lanzhou, China
*
Address correspondence and reprint requests to: Xin Qi and Lei Yang, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China and Joint Laboratory of Atomic and Molecular Physics of NWNU & IMP CAS, Northwest Normal University, Lanzhou 730070, China. E-mail: qixin2002@impcas.ac.cn, lyang@impcas.ac.cn
Address correspondence and reprint requests to: Xin Qi and Lei Yang, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China and Joint Laboratory of Atomic and Molecular Physics of NWNU & IMP CAS, Northwest Normal University, Lanzhou 730070, China. E-mail: qixin2002@impcas.ac.cn, lyang@impcas.ac.cn
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Abstract

A two-dimensional particle-in-cell (PIC) simulation is carried out to study the wakefield and stopping power for a hydrogen ion beam pulse with low drift velocity propagation in hydrogen plasmas. The plasma is assumed to be collisionless, uniform, non-magnetized, and in a steady state. Both the pulse ions and plasma particles are treated by the PIC method. The effects of the beam density on the wakefield and stopping power are then obtained and discussed. It is found that as the beam densities increase, the oscillation wakefield induced by the beam become stronger. Besides, the first oscillation wakefield behind the bunch is particularly stronger than others. Moreover, it is found that the stationary stopping power increases linearly with the increase of the beam density in the linear/semilinear region.

Keywords

Beam–plasma interactionParticle-in-cellWakefieldStopping power
Type
Research Article
Information
Laser and Particle Beams , Volume 33 , Issue 2 , June 2015 , pp. 215 - 220
Copyright
Copyright © Cambridge University Press 2015 

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