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| URL | https://doi.org/10.18429/JACoW-IBIC2025-TUPMO35 |
|---|---|
| Title | Improved design of the emittancemeter for the c-band photoinjector at IHEP |
| Authors |
|
| Abstract | To enhance the performance of next-generation X-ray Free Electron Lasers (XFELs), it is crucial to produce high-quality electron beams with low emittance, particularly for attaining emittances below 0.2 mm.mrad for 100 pC bunch charges. This study introduces an emittance measurement method using an orthogonal dual-slit technique, aimed at enhancing measurement efficiency and achieving the necessary measurement accuracy for such small emittances. An emittance meter based on this method has been designed for a C-band photocathode RF gun at the CSNS campus. Finally, we present numerical simulations to optimize the primary parameters of the emittance meter, focusing on beam drift distance, combined with the motion accuracy of the stepper motor and the expected resolution of the optical observation system to ensure the accuracy of the emittance measurement. |
| Paper | download: TUPMO35.pdf |
| Cite | BibTeX, LaTeX, Text/Word, RIS, EndNote |
| Conference | 14th International Beam Instrumentation Conference |
| Series | |
| Location | Liverpool, UK |
| Date | 07-11 Sep 2025 |
| Publisher | JACoW Publishing, Geneva, Switzerland |
| Editorial Board | Narender Kumar (Editor-in-Chief) - UoL/CI, UK Robert Apsimon - CI, UK Thankonwat Chanwattana - SLRI, Thailand Zhichu Chen - SARI, China Eunhoon Im - IBS, Korea Jangwon Kwon - IBS, Korea Milaan Patel - UoL/CI, UK Volker RW Schaa - GSI, Germany Jana Thomson -TRIUMF, Canada Bradley Wilson, STFC, UK Hao Zhang, UoL/CI, UK |
| Online ISBN | 978-3-95450-262-2 |
| Online ISSN | 2673-5350 |
| Received | 03 September 2025 |
| Revised | 11 September 2025 |
| Accepted | 11 September 2025 |
| Issued | 20 January 2026 |
| DOI | 10.18429/JACoW-IBIC2025-TUPMO35 |
| Pages | 554-557 |
| Copyright | Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |