Generating a uniform transverse distributed electronbeam along a beam line

JIAO Yi; CUI Xiao-Hao

doi:10.1088/1674-1137/39/11/117001

Chinese Physics C> 2015, Vol. 39> Issue(11) : 117001 DOI: 10.1088/1674-1137/39/11/117001

Generating a uniform transverse distributed electronbeam along a beam line

JIAO Yi ^, ,
CUI Xiao-Hao

1.
Key Laboratory of Particle Acceleration Physics and Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

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Abstract：
It has been reported that transverse distribution shaping can help to further enhance the energy extraction efficiency in a terawatt, tapered X-ray free-electron laser. Thus, methods of creating and keeping an almost uniform transverse distributed (UTD) beam within undulators are required. This study shows that a UTD electron beam can be generated within evenly distributed drift sections where undulators can be placed, by means of octupoles and particular optics. A specific design is presented, and numerical simulations are performed to verify the proposed method.
- uniform transverse distributed beam ,
- octupoles ,
- particular optics

References

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JIAO Yi and CUI Xiao-Hao. Generating a uniform transverse distributed electronbeam along a beam line[J]. Chinese Physics C, 2015, 39(11): 117001. doi: 10.1088/1674-1137/39/11/117001

JIAO Yi and CUI Xiao-Hao. Generating a uniform transverse distributed electronbeam along a beam line[J]. Chinese Physics C, 2015, 39(11): 117001. doi: 10.1088/1674-1137/39/11/117001 shu

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Received: 2015-04-27
Revised: 2015-06-19

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Supported by National Natural Science Foundation of China (11475202, 11405187) and Youth Innovation Promotion Association of Chinese Academy of Sciences (2015009)

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Generating a uniform transverse distributed electronbeam along a beam line

JIAO Yi ^,
CUI Xiao-Hao

Corresponding author: JIAO Yi,

1. Key Laboratory of Particle Acceleration Physics and Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2015-04-27
Accepted Date: 2015-06-19
Available Online: 2015-11-20

Fund Project: Supported by National Natural Science Foundation of China (11475202, 11405187) and Youth Innovation Promotion Association of Chinese Academy of Sciences (2015009)

Abstract: It has been reported that transverse distribution shaping can help to further enhance the energy extraction efficiency in a terawatt, tapered X-ray free-electron laser. Thus, methods of creating and keeping an almost uniform transverse distributed (UTD) beam within undulators are required. This study shows that a UTD electron beam can be generated within evenly distributed drift sections where undulators can be placed, by means of octupoles and particular optics. A specific design is presented, and numerical simulations are performed to verify the proposed method.