Positron acceleration in plasma bubble wakefield driven by an ultraintense laser

Journal Article · Thu Jan 14 23:00:00 EST 2016 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4939209· OSTI ID:22493839

Hou, Ya-Juan; Wan, Feng; Sang, Hai-Bo; Xie, Bai-Song ^[1]

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1. Key Laboratory of Beam Technology and Material Modification of Ministry of Education, and College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875 (China)

The dynamics of positrons accelerating in electron-positron-ion plasma bubble fields driven by an ultraintense laser is investigated. The bubble wakefield is obtained theoretically when laser pulses are propagating in the electron-positron-ion plasma. To restrict the positrons transversely, an electron beam is injected. Acceleration regions and non-acceleration ones of positrons are obtained by the numerical simulation. It is found that the ponderomotive force causes the fluctuation of the positrons momenta, which results in the trapping of them at a lower ion density. The energy gaining of the accelerated positrons is demonstrated, which is helpful for practical applications.

• OSTI ID: 22493839
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 1 Vol. 23; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCELERATION
COMPUTERIZED SIMULATION
ELECTRON BEAMS
ELECTRONS
ION DENSITY
IONS
LASER RADIATION
PLASMA
PONDEROMOTIVE FORCE
POSITRONS
PULSES
TRAPPING