Emittance conservation by tailored focusing profiles in a plasma accelerator

被引：70

作者：

Dornmair, I. ^{[1
,2
]}

Floettmann, K. ^{[3
]}

Maier, A. R. ^{[1
,2
]}

机构：

[1] Ctr Free Electron Laser Sci, CFEL, D-22607 Hamburg, Germany

[2] Univ Hamburg, Inst Expt Phys, D-22761 Hamburg, Germany

[3] DESY, D-22607 Hamburg, Germany

来源：

PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS | 2015年 / 18卷 / 04期

关键词：

ELECTRON-ACCELERATORS; LASER; BEAMS;

D O I：

10.1103/PhysRevSTAB.18.041302

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Laser-plasma accelerators, providing high electric field gradients, are promising candidates to drive next-generation compact light sources and high-energy applications. However, conservation of beam emittance, a prerequisite for future applications, is very challenging, as the accelerated beam has to be matched to the plasma's strong focusing forces. Here we derive with simulations ideal laser and plasma density profiles to match an electron beam in and out of a plasma stage, thus relaxing required beta functions for injection and minimizing divergence and emittance growth after the plasma.

引用

页数：6

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