journal article·2019-03-01Open access

The seed energy fluctuation of hard X-ray self-seeding free electron laser

C. Yang, X. Wang, C.-Y. Tsai, G. Zhou, Z. Zhang, E. D. Krug, A. Li, H. Deng, D. He, J. Wu

AIP Advances· Volume 9· Issue 3

Abstract

Self-seeding free electron lasers (FELs) are capable of generating fully coherent X-ray pulses. However, the stability of output pulse energy of hard X-ray self-seeding (HXRSS) FEL is poor. This letter reports the seed energy stability investigation of HXRSS FEL. For the purpose of a more stable HXRSS FEL, this work suggests a relatively broad bandwidth ρt of crystal monochromator, a relatively long electron bunch with energy jitter (r.m.s.) down to a quarter of FEL Pierce parameter ρ, and a larger Bragg angle θB to improve the seed energy stability. Moreover, the angle jitter (r.m.s.) between the SASE pulse incident direction and the crystal surface should be less than (ρ tan θB)/2, and the relative time jitter (r.m.s.) between the electron bunch and the seed should be less than half of the seed bump duration Tt.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Particle Accelerators and Free-Electron Lasers · Advanced X-ray Imaging Techniques · Advanced Electron Microscopy Techniques and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

National Synchrotron Radiation Laboratory, University of Science and Technology of China 1 , Hefei 230029, China

SLAC National Accelerator Laboratory 2 , Menlo Park, California 94309, USA

Shanghai Institute of Applied Physics, CAS 3 , Shanghai 201800, China

School of Electrical and Electronic Engineering, Huazhong University of Science and Technology 4 , Wuhan, Hubei 430074, China

Institute of High Energy Physics, and UCAS, CAS 5 , Beijing 100049, China

Seabreeze High School 6 , 2700 N Oleander Ave, Daytona Beach, Florida 32118, USA

Saratoga High School 7 , 20300 Herriman Ave, Saratoga, California 95070, USA

Shanghai Advanced Research Institute, CAS 8 , Shanghai 201210, China

Funding

U.S. Department of Energy

References (24)

Show source-provided references
1. The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics · 2006 · 37 · 297
2. Nature Photonics · 2010 · 4 · 64110.1038/nphoton.2010.176 ↗
3. Nature Photonics · 2012 · 6 · 54010.1038/nphoton.2012.141 ↗
4. Nature Photonics · 2007 · 1 · 33610.1038/nphoton.2007.76 ↗
5. Part. Accel. · 1980 · 10 · 207
6. Optics Communications · 1984 · 50 · 37310.1016/0030-4018(84)90105-6 ↗
7. Nuclear Science and Techniques · 2018 · 29 · 291600110.1007/s41365-018-0490-1 ↗
8. Phys. Rev. A · 1991 · 44 · 517810.1103/physreva.44.5178 ↗
9. Optics Communications · 1997 · 140 · 34110.1016/s0030-4018(97)00163-6 ↗
10. AIP Conference Proceedings · 2001 · 581 · 15310.1063/1.1401570 ↗
11. Journal of Modern Optics · 2011 · 58 · 139110.1080/09500340.2011.586473 ↗
12. Nature Photonics · 2012 · 6 · 69310.1038/nphoton.2012.180 ↗
13. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment · 1999 · 429 · 24310.1016/s0168-9002(99)00114-x ↗
14. Phys. Rev. Lett. · 1994 · 73 · 7010.1103/physrevlett.73.70 ↗
15. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment · 1998 · 407 · 26110.1016/s0168-9002(98)00032-1 ↗
16. 2001
17. Phys. Rev. ST Accel. Beams · 2012 · 15 · 05070610.1103/physrevstab.15.050706 ↗
18. Phys. Rev. ST Accel. Beams · 2012 · 15 · 10070210.1103/physrevstab.15.100702 ↗
19. Phys. Rev. ST Accel. Beams · 2011 · 14 · 01070110.1103/physrevstab.14.010701 ↗
20. Synchrotron Radiation News · 2012 · 25 · 2510.1080/08940886.2012.645421 ↗
21. Phys. Rev. Accel. Beams · 2017 · 20 · 11070310.1103/physrevaccelbeams.20.110703 ↗
22. Phys. Rev. Accel. Beams · 2018 · 21 · 04070210.1103/physrevaccelbeams.21.040702 ↗
23. Appl. Phys. Lett. · 2018 · 113 · 06110610.1063/1.5037180 ↗
24. G. Geloni, V. Kocharyan, and E. Saldin (2011), arXiv:1109.5112 [physics.acc-ph].