Energy recovery operation for continuous-wave X-ray free-electron lasers
Creators
- 1. State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 (China)
- 2. University of Chinese Academy of Sciences, Beijing 100049 (China)
- 3. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800 (China)
- 4. Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201800 (China)
Description
A superconducting linear accelerator operating in continuous-wave mode could produce X-ray free electron lasers (XFEL) at megahertz repetition rate, with the capability that delivering wide spectral range coherent radiation to multi end stations. In this paper, the energy recovery Linac (ERL) mode is proposed to flexibly control the electron beam energy for a continuous-wave superconducting Linac. Theoretical investigations and multi-dimensional numerical simulations are applied to the Linac case of Shanghai high-repetition-rate XFEL and extreme light facility. The results show that, with ERL operation in the last 25 cryo-modules, the strict requirements on RF power system could be significantly relaxed. And if one exhaust the RF power, the maximum electron beam energy can be enhanced from 8.74 GeV to 11.41 GeV in ERL mode. The optimization of the ERL operation, the multi-energy electron beam transport and the XFEL performance improvements are presented.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.nima.2021.165410Additional details
Identifiers
- DOI
- 10.1016/j.nima.2021.165410;
- PII
- S0168900221003946;
Publishing Information
- Journal Title
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Journal Volume
- 1005
- Journal Page Range
- vp.
- ISSN
- 0168-9002
- CODEN
- NIMAER
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 54011741
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S43: PARTICLE ACCELERATORS;
- Descriptors DEI
- BEAM TRANSPORT; COHERENT RADIATION; COMPUTERIZED SIMULATION; ELECTRON BEAMS; FREE ELECTRON LASERS; GEV RANGE; LINEAR ACCELERATORS; OPTIMIZATION; PERFORMANCE; POWER SYSTEMS; X RADIATION
- Descriptors DEC
- ACCELERATORS; BEAMS; ELECTROMAGNETIC RADIATION; ENERGY RANGE; ENERGY SYSTEMS; IONIZING RADIATIONS; LASERS; LEPTON BEAMS; PARTICLE BEAMS; RADIATIONS; SIMULATION
Optional Information
- Copyright
- Copyright (c) 2021 Elsevier B.V. All rights reserved.