期刊
PHYSICAL REVIEW LETTERS
卷 101, 期 12, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.101.124801
关键词
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资金
- Department of Energy [DE-FC02-01ER41192, DE-AC02-76SF00515, DE-FG03-92ER40745, DE-FG5206NA26195, DE-FG0392ER40727, DE-AC0376SF0098, DE-FG02-03ER54721]
- National Science Foundation [ECS-9632735, DMS9722121, PHY-0078715]
A novel approach for generating and accelerating positron bunches in a plasma wake is proposed and modeled. The system consists of a plasma with an embedded thin foil into which two electron beams are shot. The first beam creates a region for accelerating and focusing positrons and the second beam provides positrons to be accelerated. Monte Carlo and 3D PIC simulations show a large number of positrons (10(7)similar to 10(8)) are trapped and accelerated to similar to 5 GeV over 1 m with relatively narrow energy spread and low emittance.
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