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https://doi.org/10.18429/JACoW-SAP2023-TUPB029
Title Wakefield Studies for the Step Structure and the Skin Depth of Coated Dielectric Tubes
Authors
  • H. Liu
    SINAP, Shanghai, People’s Republic of China
  • S. Chen, H.X. Deng, B. Liu, Y.M. Wen
    SARI-CAS, Pudong, Shanghai, People’s Republic of China
  • J.J. Guo
    Zhangjiang Lab, Shanghai, People’s Republic of China
Abstract Wakefield issues are always important research objects in free electron laser (FEL) facilities. Since the wakefield in free electron laser facilities usually leads to a decrease of FEL performance, the research of the wakefield impacts is of great significance. Step structures are almost ubiquitous in the overall undulator section of an FEL facility, which always generate critical wakefields. In this paper, we systematically analyze and summarize the wakefield characteristics of step structures including the step-in structure and the step-out structure. In addition, the skin depth issue of the wakefield is still controversial. We study the skin depth of the wakefield field in the vacuum chamber of the kicker in the SHINE, which is made of the dielectric pipe. We proposed the conception of ¿effective skin depth¿ from two different perspectives and wrote simulation codes to calculate the ¿effective skin depth¿. We hope these methods could provide new mentalities for related research in the future.
Funding This work was supported by YSBR-042, 12125508, 11935020, 21XD1404100 and JCYJ-SHFY-2021-010.
Paper download TUPB029.PDF [0.455 MB / 4 pages]
Poster download TUPB029_POSTER.PDF [0.392 MB]
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Conference SAP2023
Series Symposium on Accelerator Physics (14th)
Location Xichang, China
Date 10-12 July 2023
Publisher JACoW Publishing, Geneva, Switzerland
Editorial Board Volker RW Schaa (GSI, Darmstadt, Germany); Wenhui Huang (TUB, Beijing, China); Xueqing Yan (PKU, Beijing, China); Chuanxiang Tang (TUB, Beijing, China); Lu Li (IMP, Lanzhou, China)
Online ISBN 978-3-95450-265-3
Received 30 June 2023
Revised 09 July 2023
Accepted 12 July 2023
Issued 21 September 2023
DOI doi:10.18429/JACoW-SAP2023-TUPB029
Pages 147-150
Copyright
Creative Commons CC logoPublished by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.