High-Gradient Performance of X-Band Choke-Mode Structures Article Swipe

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Xiaowei Wu , K. Abe , Dezhi Cao , Huaibi Chen , T. Higo , Shuji Matsumoto , Jiaru Shi , Hao Zha ·

YOU? · · 2018 · Open Access · · DOI: https://doi.org/10.18429/jacow-ipac2018-thpal154

The choke-mode accelerating structure is one of the higher-order-mode (HOM) damping structures. It has the advantage of relatively simple fabrication and low surface magnetic field. C-band choke-mode accelerating structures have been successfully applied in multibunch XFEL. However, the X-band choke-mode study remains in the theoretical design stage. The high-gradient performance of the choke is still unknown. Five different single-cell choke-mode accelerating structures were designed, fabricated and high-gradient tested to study the related RF breakdown characteristics. It was observed that high electric field and small choke dimension caused serious breakdowns in the choke which was the main limitation of the high-gradient performance. The Choke-mode accelerating structures reached 130 MV/m by decreasing the electric field and increasing the choke gap. A new quantity was proposed to give the high-gradient performance limit of choke-mode accelerating structures due to RF breakdown. The new quantity was obtained from the summary of the high-gradient experiments and could be used to guide high-gradient choke-mode accelerating structure design.

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Choke Mode (computer interface) Physics Materials science Computer science Quantum mechanics Operating system

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Type: article
Language: en
Landing Page: https://doi.org/10.18429/jacow-ipac2018-thpal154
OA Status: green
References: 3
Related Works: 20
OpenAlex ID: https://openalex.org/W2891095143

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OpenAlex ID: https://openalex.org/W2891095143

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DOI: https://doi.org/10.18429/jacow-ipac2018-thpal154

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Title: High-Gradient Performance of X-Band Choke-Mode Structures

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Type: article

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Language: en

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Publication year: 2018

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Publication date: 2018-01-01

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Authors: Xiaowei Wu, K. Abe, Dezhi Cao, Huaibi Chen, T. Higo, Shuji Matsumoto, Jiaru Shi, Hao Zha

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Landing page: https://doi.org/10.18429/jacow-ipac2018-thpal154

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Open access: Yes

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OA status: green

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OA URL: https://doi.org/10.18429/jacow-ipac2018-thpal154

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Concepts: Choke, Mode (computer interface), Physics, Materials science, Computer science, Quantum mechanics, Operating system

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Cited by: 0

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References (count): 3

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Related works (count): 20

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