Development of S-band hybrid bunching-accelerating structure prototype

Gao Bin; Pei Shilun; Wang Hui; Zhao Shiqi; Chi Yunlong

doi:10.11884/HPLPB202133.200162

Volume 33 Issue 2

Jan. 2021

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Gao Bin, Pei Shilun, Wang Hui, et al. Development of S-band hybrid bunching-accelerating structure prototype[J]. High Power Laser and Particle Beams, 2021, 33: 024002. doi: 10.11884/HPLPB202133.200162

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Gao Bin, Pei Shilun, Wang Hui, et al. Development of S-band hybrid bunching-accelerating structure prototype[J]. High Power Laser and Particle Beams, 2021, 33: 024002. doi: 10.11884/HPLPB202133.200162

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Development of S-band hybrid bunching-accelerating structure prototype

doi: 10.11884/HPLPB202133.200162

1.
Department of Engineering Physics, Tsinghua University, Beijing 100084, China
2.
Research and Design Center for Cyclotron, China Institute of Atomic Energy, Beijing 102413, China
3.
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2020-06-12
Rev Recd Date: 2020-10-19
Publish Date: 2021-01-07

Abstract

Abstract

Hybrid bunching-accelerating structure (HBaS) is a novel RF structure integrating a standing-wave(SW) pre-buncher (PB), a traveling-wave (TW) buncher (B) and a standard accelerating structure together. This paper presents the design results, including beam dynamic optimization, microwave design and the cold test of the S-band HBaS prototype, and explicates the reason of transverse emittance increasement caused by the hybrid structure. The low RF power results are in good agreement with the RF design. The measured S₁₁ at operation frequency is less than −45 dB, the phase shift deviation is less than ±2° and the bandwidth is more than 5 MHz (VSWR≤1.2). The axis field distribution fully meets the dynamic requirements.
- bunching system,
- hybrid bunching-accelerating structure,
- non-resonant perturbation measurement,
- SLAC method,
- low power test

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References(18)

References

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