X-ray Free Electron Laser Accelerator Lattice Design Using Laser-Assisted Bunch Compression
We report the start-to-end modeling of our accelerator lattice design employing a laser-assisted bunch compression (LABC) scheme in an X-ray free electron laser (XFEL), using the proposed Matter-Radiation Interactions in Extremes (MaRIE) XFEL parameters. The accelerator lattice utilized a two-stage...
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| Format: | Article |
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MDPI AG
2023-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/4/2285 |
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| author | Haoran Xu Petr M. Anisimov Bruce E. Carlsten Leanne D. Duffy Quinn R. Marksteiner River R. Robles |
| author_facet | Haoran Xu Petr M. Anisimov Bruce E. Carlsten Leanne D. Duffy Quinn R. Marksteiner River R. Robles |
| author_sort | Haoran Xu |
| collection | DOAJ |
| description | We report the start-to-end modeling of our accelerator lattice design employing a laser-assisted bunch compression (LABC) scheme in an X-ray free electron laser (XFEL), using the proposed Matter-Radiation Interactions in Extremes (MaRIE) XFEL parameters. The accelerator lattice utilized a two-stage bunch compression scheme, with the first bunch compressor performing a conventional bulk compression enhancing the beam current from 20 A to 500 A, at 750 MeV. The second bunch compression was achieved by modulating the beam immediately downstream of the first bunch compressor by a laser with 1-<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi mathvariant="sans-serif">μ</mi><mi mathvariant="normal">m</mi></mrow></semantics></math></inline-formula> wavelength in a laser modulator, accelerating the beam to the final energy of 12 GeV, and compressing the individual 1-<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi mathvariant="sans-serif">μ</mi><mi mathvariant="normal">m</mi></mrow></semantics></math></inline-formula> periods of the modulated beam into a sequence of microbunches with 3-kA current spikes by the second bunch compressor. The LABC architecture presented had been developed based on the scheme of enhanced self-amplified spontaneous emission (ESASE), but operated in a disparate regime of parameters. Enabled by the novel technology of the cryogenic normal conducting radiofrequency photoinjector, we investigated an electron beam with ultra-low emittance at the starting point of the lattice design. Our work aimed at mitigating the well-known beam instabilities to preserve the beam emittance and suppress the energy spread growth. |
| first_indexed | 2024-03-11T09:12:43Z |
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| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T09:12:43Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-255f38eaef3847ca982a9a5330604b772023-11-16T18:53:32ZengMDPI AGApplied Sciences2076-34172023-02-01134228510.3390/app13042285X-ray Free Electron Laser Accelerator Lattice Design Using Laser-Assisted Bunch CompressionHaoran Xu0Petr M. Anisimov1Bruce E. Carlsten2Leanne D. Duffy3Quinn R. Marksteiner4River R. Robles5Los Alamos National Laboratory, Los Alamos, NM 87545, USALos Alamos National Laboratory, Los Alamos, NM 87545, USALos Alamos National Laboratory, Los Alamos, NM 87545, USALos Alamos National Laboratory, Los Alamos, NM 87545, USALos Alamos National Laboratory, Los Alamos, NM 87545, USASLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, CA 94025, USAWe report the start-to-end modeling of our accelerator lattice design employing a laser-assisted bunch compression (LABC) scheme in an X-ray free electron laser (XFEL), using the proposed Matter-Radiation Interactions in Extremes (MaRIE) XFEL parameters. The accelerator lattice utilized a two-stage bunch compression scheme, with the first bunch compressor performing a conventional bulk compression enhancing the beam current from 20 A to 500 A, at 750 MeV. The second bunch compression was achieved by modulating the beam immediately downstream of the first bunch compressor by a laser with 1-<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi mathvariant="sans-serif">μ</mi><mi mathvariant="normal">m</mi></mrow></semantics></math></inline-formula> wavelength in a laser modulator, accelerating the beam to the final energy of 12 GeV, and compressing the individual 1-<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi mathvariant="sans-serif">μ</mi><mi mathvariant="normal">m</mi></mrow></semantics></math></inline-formula> periods of the modulated beam into a sequence of microbunches with 3-kA current spikes by the second bunch compressor. The LABC architecture presented had been developed based on the scheme of enhanced self-amplified spontaneous emission (ESASE), but operated in a disparate regime of parameters. Enabled by the novel technology of the cryogenic normal conducting radiofrequency photoinjector, we investigated an electron beam with ultra-low emittance at the starting point of the lattice design. Our work aimed at mitigating the well-known beam instabilities to preserve the beam emittance and suppress the energy spread growth.https://www.mdpi.com/2076-3417/13/4/2285X-ray free electron laserESASElaser assisted bunch compressionultra-low emittance |
| spellingShingle | Haoran Xu Petr M. Anisimov Bruce E. Carlsten Leanne D. Duffy Quinn R. Marksteiner River R. Robles X-ray Free Electron Laser Accelerator Lattice Design Using Laser-Assisted Bunch Compression Applied Sciences X-ray free electron laser ESASE laser assisted bunch compression ultra-low emittance |
| title | X-ray Free Electron Laser Accelerator Lattice Design Using Laser-Assisted Bunch Compression |
| title_full | X-ray Free Electron Laser Accelerator Lattice Design Using Laser-Assisted Bunch Compression |
| title_fullStr | X-ray Free Electron Laser Accelerator Lattice Design Using Laser-Assisted Bunch Compression |
| title_full_unstemmed | X-ray Free Electron Laser Accelerator Lattice Design Using Laser-Assisted Bunch Compression |
| title_short | X-ray Free Electron Laser Accelerator Lattice Design Using Laser-Assisted Bunch Compression |
| title_sort | x ray free electron laser accelerator lattice design using laser assisted bunch compression |
| topic | X-ray free electron laser ESASE laser assisted bunch compression ultra-low emittance |
| url | https://www.mdpi.com/2076-3417/13/4/2285 |
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