FLS2023 - List of Authors (Wang, Z.)

Paper	Title	Page
MO3A9	Comissioning Progress and Advanced FEL Experiments at the SXFEL Facility
	C. Feng, B. Liu, Z. Wang, Z.T. Zhao SARI-CAS, Pudong, Shanghai, People’s Republic of China
	The Shanghai soft X-ray Free-Electron Laser facility (SXFEL) is the first X-ray FEL facility in China. The construction of the SXFEL facility was finished in 2022. The output photon energy of the SXFEL can cover the whole water window range. Except for the self-amplified spontaneous emission, various seeding technques have also been adopted for improving the performances of the SXFEL. Here we presents an overview of the SXFEL facility, including the layout and design, construction status, commissioning progress and future plans on advanced FEL experiments.
	Slides MO3A9 [4.688 MB]
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WE3A4	Energy Recovery Linac Based Multi-pointing Fully Coherent Light Source
	Z. Wang, C. Feng, Z.T. Zhao SARI-CAS, Pudong, Shanghai, People’s Republic of China
	Energy recovery linac (ERL) holds great promise for generating high repetition-rate and high brightness electron beams. In this paper, we consider the combination of ERL with the recently proposed anglerangular-dispersion induced microbunching technique to generate fully coherent radiation pulses with high average brightness and tunable pulse length. Besides, we design a multiplexed emitting system, which consists of multi-bend achromats (MBAs), matching sections and radiators to support multi-beamline operation in the long straight section of the ERL. Theory and simulation have been carried out and the results indicate that the microbunching and beam quality maintains well after four times of bending, indicating the continuously radiation with the wavelength of 13.5 nm and the peak power of 2 MW.
	Slides WE3A4 [4.548 MB]
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WE4P09	Heat Load and Radiation Pulse of Corrugated Structure at SHINE Facility	168
	J.J. Guo Zhangjiang Lab, Shanghai, People’s Republic of China H.X. Deng, D. Gu, Q. Gu, M. Meng, Z. Wang SARI-CAS, Pudong, Shanghai, People’s Republic of China
	Corrugated structure modules are being proposed for installation after the end of the linac and before the undulator regions of SHINE facility, where it has been used for energy chirp control and as a fast kicker for two color operation of the FEL. When ultra-relativistic bunch of electrons passing through corrugated structure will generate strong wakefield, we find most of the wake power lost by the beam is radiated out to the sides of the corrugated structure in the form of THz waves, and the remaining part casue Joule heating load on the corrugated structure wall. In this paper, we estimate the radiation pulse power and Joule power loss of the corrugated structure in SHINE facility.
	Poster WE4P09 [0.787 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-FLS2023-WE4P09
About •	Received ※ 23 August 2023 — Revised ※ 28 August 2023 — Accepted ※ 31 August 2023 — Issued ※ 02 December 2023
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WE4P12	Upgrades of High Level Applications at Shanghai Soft X-Ray FEL Facility	171
	H. Luo, D. Gu, T. Liu, Z. Wang SARI-CAS, Pudong, Shanghai, People’s Republic of China K.Q. Zhang SSRF, Shanghai, People’s Republic of China
	The Shanghai soft X-ray free-electron laser(SXFEL) facility has made significant progress in recent years with the rapid, upgraded iterations of the high level software, including but not limited to energy matching, orbit feedback and load, beam optimization, etc. These tools are key components in operation and experiment of free electron laser facility. Some key applications are presented in this paper.
DOI •	reference for this paper ※ doi:10.18429/JACoW-FLS2023-WE4P12
About •	Received ※ 21 August 2023 — Revised ※ 29 August 2023 — Accepted ※ 30 August 2023 — Issued ※ 02 December 2023
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WE4P13	Physics Design and Beam Dynamics Optimization of the SHINE Accelerator	174
	D. Gu, Z. Wang, M. Zhang SARI-CAS, Pudong, Shanghai, People’s Republic of China
	Shanghai HIgh Repetition Rate X-ray Free Electron Laser and Extreme Light Facility (SHINE) is a hard X-ray FEL facility which is driven by a 1.3 km supercon-ducting Linac, aims to provide high repetition rate pulses up to 1 MHz . In this study, we present the physics design of the SHINE accelerator and considerations of beam dynamics optimizations. Start-to-end simulation results show that, a high brightness electron beam with over 1500 A quasi-flat-top current can be attained which fully meet the requirements of FEL lines. Furthermore, design of the bypass line is also discussed.
DOI •	reference for this paper ※ doi:10.18429/JACoW-FLS2023-WE4P13
About •	Received ※ 23 August 2023 — Revised ※ 30 August 2023 — Accepted ※ 31 August 2023 — Issued ※ 02 December 2023
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TH4A1	Progress Towards X-ray Free-electron Laser Driven by Plasma Wakefield Accelerator at SXFEL
	F. Li, J.F. Hua, W. Lu, Z. Song, H.Y. Xiao TUB, Beijing, People’s Republic of China C. Feng, Z. Wang, Z.T. Zhao SARI-CAS, Pudong, Shanghai, People’s Republic of China T.L. Zhang Tsinghua University, Beijing, People’s Republic of China
	Free-electron lasers (FEL) are unique light source for various applications in structural biology, chemistry and condense physics. Plasma-based accelerators can provide ultrahigh accelerating gradient which is 3~4 orders of magnitude higher than conventional technology, holding the potential for a revolution in particle accelerators. This novel technology therefore has been given high expectations for the development of compact free-electron lasers. SXFEL is a single-pass FEL user facility that provides 2~10 nm radiation for fundamental and applied research. In frame of this report, we present concept and design of a large-bandwidth XFEL based on a plasma wakefield accelerator (PWFA) driven by SXFEL electron beams. An ultrabroad bandwidth is achieved by chirping the electron beam in a hollow-channel plasma and simulations demonstrate that a spectral bandwidth of up to 24% can be obtained in this scheme. We will also present the recent progress on the construction of PWFA-based XFEL experimental station at SXFEL, and the preliminary experimental results on the PWFA and FEL radiation generation.
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Paper

Title

Page

MO3A9

Comissioning Progress and Advanced FEL Experiments at the SXFEL Facility

C. Feng, B. Liu, Z. Wang, Z.T. Zhao
SARI-CAS, Pudong, Shanghai, People’s Republic of China

The Shanghai soft X-ray Free-Electron Laser facility (SXFEL) is the first X-ray FEL facility in China. The construction of the SXFEL facility was finished in 2022. The output photon energy of the SXFEL can cover the whole water window range. Except for the self-amplified spontaneous emission, various seeding technques have also been adopted for improving the performances of the SXFEL. Here we presents an overview of the SXFEL facility, including the layout and design, construction status, commissioning progress and future plans on advanced FEL experiments.

Slides MO3A9 [4.688 MB]

Cite •

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

WE3A4

Energy Recovery Linac Based Multi-pointing Fully Coherent Light Source

Z. Wang, C. Feng, Z.T. Zhao
SARI-CAS, Pudong, Shanghai, People’s Republic of China

Energy recovery linac (ERL) holds great promise for generating high repetition-rate and high brightness electron beams. In this paper, we consider the combination of ERL with the recently proposed anglerangular-dispersion induced microbunching technique to generate fully coherent radiation pulses with high average brightness and tunable pulse length. Besides, we design a multiplexed emitting system, which consists of multi-bend achromats (MBAs), matching sections and radiators to support multi-beamline operation in the long straight section of the ERL. Theory and simulation have been carried out and the results indicate that the microbunching and beam quality maintains well after four times of bending, indicating the continuously radiation with the wavelength of 13.5 nm and the peak power of 2 MW.

Slides WE3A4 [4.548 MB]

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

WE4P09

Heat Load and Radiation Pulse of Corrugated Structure at SHINE Facility

168

J.J. Guo
Zhangjiang Lab, Shanghai, People’s Republic of China
H.X. Deng, D. Gu, Q. Gu, M. Meng, Z. Wang
SARI-CAS, Pudong, Shanghai, People’s Republic of China

Corrugated structure modules are being proposed for installation after the end of the linac and before the undulator regions of SHINE facility, where it has been used for energy chirp control and as a fast kicker for two color operation of the FEL. When ultra-relativistic bunch of electrons passing through corrugated structure will generate strong wakefield, we find most of the wake power lost by the beam is radiated out to the sides of the corrugated structure in the form of THz waves, and the remaining part casue Joule heating load on the corrugated structure wall. In this paper, we estimate the radiation pulse power and Joule power loss of the corrugated structure in SHINE facility.

Poster WE4P09 [0.787 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-FLS2023-WE4P09

About •

Received ※ 23 August 2023 — Revised ※ 28 August 2023 — Accepted ※ 31 August 2023 — Issued ※ 02 December 2023

Cite •

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

WE4P12

Upgrades of High Level Applications at Shanghai Soft X-Ray FEL Facility

171

H. Luo, D. Gu, T. Liu, Z. Wang
SARI-CAS, Pudong, Shanghai, People’s Republic of China
K.Q. Zhang
SSRF, Shanghai, People’s Republic of China

The Shanghai soft X-ray free-electron laser(SXFEL) facility has made significant progress in recent years with the rapid, upgraded iterations of the high level software, including but not limited to energy matching, orbit feedback and load, beam optimization, etc. These tools are key components in operation and experiment of free electron laser facility. Some key applications are presented in this paper.

DOI •

reference for this paper ※ doi:10.18429/JACoW-FLS2023-WE4P12

About •

Received ※ 21 August 2023 — Revised ※ 29 August 2023 — Accepted ※ 30 August 2023 — Issued ※ 02 December 2023

Cite •

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

WE4P13

Physics Design and Beam Dynamics Optimization of the SHINE Accelerator

174

D. Gu, Z. Wang, M. Zhang
SARI-CAS, Pudong, Shanghai, People’s Republic of China

Shanghai HIgh Repetition Rate X-ray Free Electron Laser and Extreme Light Facility (SHINE) is a hard X-ray FEL facility which is driven by a 1.3 km supercon-ducting Linac, aims to provide high repetition rate pulses up to 1 MHz . In this study, we present the physics design of the SHINE accelerator and considerations of beam dynamics optimizations. Start-to-end simulation results show that, a high brightness electron beam with over 1500 A quasi-flat-top current can be attained which fully meet the requirements of FEL lines. Furthermore, design of the bypass line is also discussed.

DOI •

reference for this paper ※ doi:10.18429/JACoW-FLS2023-WE4P13

About •

Received ※ 23 August 2023 — Revised ※ 30 August 2023 — Accepted ※ 31 August 2023 — Issued ※ 02 December 2023

Cite •

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

TH4A1

Progress Towards X-ray Free-electron Laser Driven by Plasma Wakefield Accelerator at SXFEL

F. Li, J.F. Hua, W. Lu, Z. Song, H.Y. Xiao
TUB, Beijing, People’s Republic of China
C. Feng, Z. Wang, Z.T. Zhao
SARI-CAS, Pudong, Shanghai, People’s Republic of China
T.L. Zhang
Tsinghua University, Beijing, People’s Republic of China

Free-electron lasers (FEL) are unique light source for various applications in structural biology, chemistry and condense physics. Plasma-based accelerators can provide ultrahigh accelerating gradient which is 3~4 orders of magnitude higher than conventional technology, holding the potential for a revolution in particle accelerators. This novel technology therefore has been given high expectations for the development of compact free-electron lasers. SXFEL is a single-pass FEL user facility that provides 2~10 nm radiation for fundamental and applied research. In frame of this report, we present concept and design of a large-bandwidth XFEL based on a plasma wakefield accelerator (PWFA) driven by SXFEL electron beams. An ultrabroad bandwidth is achieved by chirping the electron beam in a hollow-channel plasma and simulations demonstrate that a spectral bandwidth of up to 24% can be obtained in this scheme. We will also present the recent progress on the construction of PWFA-based XFEL experimental station at SXFEL, and the preliminary experimental results on the PWFA and FEL radiation generation.

Cite •

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