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Title: Study of a free-electron laser driven by a laser-plasma accelerated beam at Peking University

Abstract

The percent level energy spread and large divergence of laser-plasma beam are the main challenges of realizing compact short-wavelength free-electron lasers based on laser-plasma accelerators. These issues can be solved with proposed transverse gradient undulator method or bunch decompression method along with proper transport design. We present a study of using an expected 500 MeV laser-plasma beam with 0.3 mm•mrad normalized emittance and 0.3 mrad divergence at Peking University to drive compact free-electron laser at 30 nm. We employ the bunch decompression method with a chromatic matching beamline as well as the transverse gradient undulator method with assumed matched beam. Simulation shows that 700 MW power, 9.7 fs pulse duration and 0.85% relative bandwidth FEL output can be obtained using chromatic matched bunch decompression method. As a result FEL with similar performance can be obtained using the transverse gradient undulator scheme.

Authors:
 [1];  [1];  [1];  [1];  [2];  [2];  [1];  [1];  [1];  [1]
  1. Peking Univ., Beijing (China)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1506846
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 925; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; Free-Electron laser; Laser-Plasma accelerator; Transverse gradient undulator; Chromatic matching

Citation Formats

Qin, Weilun, Zeng, Ling, Huang, Senlin, Zhao, Gang, Ding, Yuantao, Huang, Zhirong, Hu, Ronghao, Lu, Haiyang, Yan, Xueqing, and Liu, Kexin. Study of a free-electron laser driven by a laser-plasma accelerated beam at Peking University. United States: N. p., 2019. Web. doi:10.1016/j.nima.2019.02.025.
Qin, Weilun, Zeng, Ling, Huang, Senlin, Zhao, Gang, Ding, Yuantao, Huang, Zhirong, Hu, Ronghao, Lu, Haiyang, Yan, Xueqing, & Liu, Kexin. Study of a free-electron laser driven by a laser-plasma accelerated beam at Peking University. United States. doi:10.1016/j.nima.2019.02.025.
Qin, Weilun, Zeng, Ling, Huang, Senlin, Zhao, Gang, Ding, Yuantao, Huang, Zhirong, Hu, Ronghao, Lu, Haiyang, Yan, Xueqing, and Liu, Kexin. Fri . "Study of a free-electron laser driven by a laser-plasma accelerated beam at Peking University". United States. doi:10.1016/j.nima.2019.02.025.
@article{osti_1506846,
title = {Study of a free-electron laser driven by a laser-plasma accelerated beam at Peking University},
author = {Qin, Weilun and Zeng, Ling and Huang, Senlin and Zhao, Gang and Ding, Yuantao and Huang, Zhirong and Hu, Ronghao and Lu, Haiyang and Yan, Xueqing and Liu, Kexin},
abstractNote = {The percent level energy spread and large divergence of laser-plasma beam are the main challenges of realizing compact short-wavelength free-electron lasers based on laser-plasma accelerators. These issues can be solved with proposed transverse gradient undulator method or bunch decompression method along with proper transport design. We present a study of using an expected 500 MeV laser-plasma beam with 0.3 mm•mrad normalized emittance and 0.3 mrad divergence at Peking University to drive compact free-electron laser at 30 nm. We employ the bunch decompression method with a chromatic matching beamline as well as the transverse gradient undulator method with assumed matched beam. Simulation shows that 700 MW power, 9.7 fs pulse duration and 0.85% relative bandwidth FEL output can be obtained using chromatic matched bunch decompression method. As a result FEL with similar performance can be obtained using the transverse gradient undulator scheme.},
doi = {10.1016/j.nima.2019.02.025},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 925,
place = {United States},
year = {2019},
month = {2}
}

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This content will become publicly available on February 15, 2020
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