1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

Orthogonal dual-slit emitttancemeter for the C-band photocathode RF-gun

THPM053
5 Jun 2025, 15:30
2h
Exhibiton Hall A _Magpie (TWTC)

Exhibiton Hall A _Magpie

TWTC

Poster Presentation MC6.T03 Beam Diagnostics and Instrumentation Thursday Poster Session

Speaker

Weiwen Chen (Institute of High Energy Physics)

Description

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.

Region represented Asia
Paper preparation format LaTeX

Author

Weiwen Chen (Institute of High Energy Physics)

Co-authors

Renjun Yang (Institute of High Energy Physics) Shimin Jiang (Institute of High Energy Physics) Xiangkun Li (Deutsches Elektronen-Synchrotron DESY)

Presentation materials

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