Study of laser-beam arrival time synchronization towards sub-picosecond stability level
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arXiv
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| Auteurs principaux: | , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866912788230701056 |
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| author | Popov, Konstantin Kaji, Hiroshi Kobayashi, Tetsuya Martens, Aurelien Charlet, Daniel Esnault, Cedric Back, Antoine Pottie, Paul-Eric Zomer, Fabian Aryshev, Alexander |
| author_facet | Popov, Konstantin Kaji, Hiroshi Kobayashi, Tetsuya Martens, Aurelien Charlet, Daniel Esnault, Cedric Back, Antoine Pottie, Paul-Eric Zomer, Fabian Aryshev, Alexander |
| contents | A precise synchronization between laser pulse and electron beam arrival time is essential for achieving sub-picosecond stability in modern accelerator facilities. In this work, a Low-Level RF system architecture combined with White Rabbit based timing system has been tested through a collaboration between KEK (Japan) and CNRS/IN2P3, IJClab (France). The setup combines a frequency standard generator, an IDROGEN carrier board with an embedded White Rabbit node, and SkyWorks synthesizers of different form factors to distribute phase-locked clock signals over telecommunication fiber. Phase noise power spectral density measurements were performed at several RF sub-harmonics to confirm synchronization performance. These results demonstrate the feasibility of implementing the White Rabbit-IDROGEN synchronization scheme for large-scale accelerators, including applications to laser-based diagnostics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_21212 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Study of laser-beam arrival time synchronization towards sub-picosecond stability level Popov, Konstantin Kaji, Hiroshi Kobayashi, Tetsuya Martens, Aurelien Charlet, Daniel Esnault, Cedric Back, Antoine Pottie, Paul-Eric Zomer, Fabian Aryshev, Alexander Accelerator Physics Instrumentation and Detectors A precise synchronization between laser pulse and electron beam arrival time is essential for achieving sub-picosecond stability in modern accelerator facilities. In this work, a Low-Level RF system architecture combined with White Rabbit based timing system has been tested through a collaboration between KEK (Japan) and CNRS/IN2P3, IJClab (France). The setup combines a frequency standard generator, an IDROGEN carrier board with an embedded White Rabbit node, and SkyWorks synthesizers of different form factors to distribute phase-locked clock signals over telecommunication fiber. Phase noise power spectral density measurements were performed at several RF sub-harmonics to confirm synchronization performance. These results demonstrate the feasibility of implementing the White Rabbit-IDROGEN synchronization scheme for large-scale accelerators, including applications to laser-based diagnostics. |
| title | Study of laser-beam arrival time synchronization towards sub-picosecond stability level |
| topic | Accelerator Physics Instrumentation and Detectors |
| url | https://arxiv.org/abs/2512.21212 |