SAP2017 - List of Authors (Zhao, Z.T.)

Paper	Title	Page
TUAH4	Using a Bessel Light Beam as an Ultra-short Period Helical Undulator	121
	B.C. Jiang, J.H. Chen, Q.L. Zhang, Z.T. Zhao SINAP, Shanghai, People's Republic of China
	An undulator is a critical component to produce synchrotron radiation and free electron laser. When a Bessel light beam carrying the orbit angular momentum co-propagates with an electron beam bunch, a net transverse deflection force will be subjected to the latter one. As a result of dephasing effect, the deflection force will oscillate and act as an undulator. For such a laser based undulator, the period length can reach sub-millimeter level, which will greatly reduce the electron energy for the required X-ray production.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-SAP2017-TUAH4
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TUPH04	Simulations of High Transformer Ratio High Brightness Plasma Wakefield Acceleration for Accelerator Parameters of SXFEL Facility at SINAP
	S. Huang, J.F. Hua, F. Li, W. Lu, C.H. Pai, Y. Wan, Y.P. Wu, S.Y. Zhou TUB, Beijing, People's Republic of China W. An, C. Joshi, W.B. Mori, X.L. Xu UCLA, Los Angeles, California, USA H.X. Deng, B. Liu, Z. Wang, Z.T. Zhao SINAP, Shanghai, People's Republic of China
	High transformer ratio (HTR) Plasma Wakefield Accelerator (PWFA) based on shaped electron bunches is an important topic of plasma wakefield acceleration for future light sources and colliders [1]. To explore the possibility of implementing PWFA at SXFEL, we performed 3D PIC simulations using shaped electron beam parameters obtained by start-to-end beam line simulations [2]. The PIC simulations show that an average transformer ratio around 4 can be maintained for about 10 cm long low density plasma, and the energy gain of the trailing bunch eventually reaches 5.9 GeV. In addition, plasma density downramp injection has also been tested as a possible high brightness injection method for HTR acceleration, and preliminary results will be presented. Simulations and analysis are also performed to check the effects of transverse beam size on HTR high brightness acceleration. [1] W. Lu, W. An, C. Huang et al., "High Transformer ratio PWFA for Applications on XFELs", Bulletin of the American Physical Society, 2009, 54. [2] Z. Wang, Z. T. Zhao et al., private communication.
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Paper

Title

Page

Using a Bessel Light Beam as an Ultra-short Period Helical Undulator

121

B.C. Jiang, J.H. Chen, Q.L. Zhang, Z.T. Zhao
SINAP, Shanghai, People's Republic of China

An undulator is a critical component to produce synchrotron radiation and free electron laser. When a Bessel light beam carrying the orbit angular momentum co-propagates with an electron beam bunch, a net transverse deflection force will be subjected to the latter one. As a result of dephasing effect, the deflection force will oscillate and act as an undulator. For such a laser based undulator, the period length can reach sub-millimeter level, which will greatly reduce the electron energy for the required X-ray production.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-SAP2017-TUAH4

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPH04

Simulations of High Transformer Ratio High Brightness Plasma Wakefield Acceleration for Accelerator Parameters of SXFEL Facility at SINAP

S. Huang, J.F. Hua, F. Li, W. Lu, C.H. Pai, Y. Wan, Y.P. Wu, S.Y. Zhou
TUB, Beijing, People's Republic of China
W. An, C. Joshi, W.B. Mori, X.L. Xu
UCLA, Los Angeles, California, USA
H.X. Deng, B. Liu, Z. Wang, Z.T. Zhao
SINAP, Shanghai, People's Republic of China

High transformer ratio (HTR) Plasma Wakefield Accelerator (PWFA) based on shaped electron bunches is an important topic of plasma wakefield acceleration for future light sources and colliders [1]. To explore the possibility of implementing PWFA at SXFEL, we performed 3D PIC simulations using shaped electron beam parameters obtained by start-to-end beam line simulations [2]. The PIC simulations show that an average transformer ratio around 4 can be maintained for about 10 cm long low density plasma, and the energy gain of the trailing bunch eventually reaches 5.9 GeV. In addition, plasma density downramp injection has also been tested as a possible high brightness injection method for HTR acceleration, and preliminary results will be presented. Simulations and analysis are also performed to check the effects of transverse beam size on HTR high brightness acceleration.
[1] W. Lu, W. An, C. Huang et al., "High Transformer ratio PWFA for Applications on XFELs", Bulletin of the American Physical Society, 2009, 54.
[2] Z. Wang, Z. T. Zhao et al., private communication.

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reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)