Impact factor of Chinese Physics C is 3.6 in 2023 Impact factor of Chinese Physics C is 3.6 in 2022 2021 Impact Factor 2.944
Advanced Search
×
近期发现有不法分子冒充我刊与作者联系，借此进行欺诈等不法行为，请广大作者加以鉴别，如遇诈骗行为，请第一时间与我刊编辑部联系确认（《中国物理C》（英文）编辑部电话：010-88235947,010-88236950），并作报警处理。
本刊再次郑重声明：
（1）本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137
（2）本刊采编系统作者中心是投稿的唯一路径，该系统为ScholarOne远程稿件采编系统，仅在本刊投稿网网址（https://mc03.manuscriptcentral.com/cpc）设有登录入口。本刊不接受其他方式的投稿，如打印稿投稿、E-mail信箱投稿等，若以此种方式接收投稿均为假冒。
（3）所有投稿均需经过严格的同行评议、编辑加工后方可发表，本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿，并收取发表费用，均为假冒。
                  
《中国物理C》（英文）编辑部
2024年10月30日
Chinese Physics C> 2014, Vol. 38> Issue(1) : 018101 DOI: 10.1088/1674-1137/38/1/018101

Physical design of FEL injector based on the performance-enhanced EC-ITC RF gun

  • To meet the requirements of high performance THz-FEL (Free Electron Laser), a compact scheme of FEL injector was proposed. A thermionic cathode was chosen to emit electrons instead of a photo-cathode with its complex structure and high cost. The effective bunch charge was improved to ～200 pC by adopting an enhanced EC-ITC (External Cathode Independently Tunable Cells) RF gun to extract micro-bunches; back bombardment effects were almost eliminated as well. Constant gradient accelerator structures were designed to improve energy to ～14 MeV, while the focusing system was applied for emittance suppressing and bunch state maintenance. The physical design and beam dynamics of the key components for the FEL injector were analyzed. Furthermore, start-to-end simulations with multi-pulses were performed using homemade MATLAB and Parmela. The results show that continual high brightness electron bunches with a low energy spread and emittance could be obtained stably.
      PCAS:
  • 加载中

  • References

    [1] Rimjaem S et al. Nucl. Instrum. Methods A, 2004, 533: 258[2] Hama H et al. Nucl. Instrum. Methods A, 2004, 528: 271[3] TANG Chuan-Xiang et al. High Energy Physics and Nuclear Physics, 1997, 21(4): 378 (in Chinese)[4] TANG Chuan-Xiang et al. High Energy Physics and Nuclear Physics, 1997, 21(5): 470 (in Chinese)[5] Lewellen J W. Energy-Spread Compensation of a Thermionic-Cathode RF Gun. Proc. of the 2003 Particle Accelerator Conference. 2003[6] Tanaka T et al. An Independently Tunable Cells Thermionic RF Gun (ITC-RF gun) for Sub-Picosecond Short Pulse. Proc. of the 27th International Free Electron Laser Conference. 2005[7] Tanaka T et al. Simulation Study of a Thermionic RF Gun for High Brightness and Short Pulse Beam. Proc. of the 2005 Particle Accelerator Conference. 2005[8] PANG Jian et al. Design of Compact Self Bunch RF Gun. High Power Laser and Particle Beams, 2009, 21(7): 1063 (in Chinese)[9] PEI Yuan-Ji et al. R D on a Compact EC-ITC RF Gun for FEL. Proc. of the 2010 International Particle Accelerator Conference. 2010[10] LIANG Jun-Jun et al. High Power Laser and Particle Beams, 2012, 24(1): 197 (in Chinese)[11] TAN Ping et al. Simulation and Optimization Research of a THz Free-Electron Laser Oscillator. Proc. of the 2009 Particle Accelerator Conference. 2009[12] QIN Bin et al. Design Considerations for a Hybrid Undulator Applied in a Terahertz FEL Oscillator. Proc. of the 2012 International Particle Accelerator Conference. 2012[13] Young L. PARMELA Manual, LANL, 1998[14] ZHANG Shan-Cai et al. High Energy Physics and Nuclear Physics, 2006, 30(Supp. I): 21 (in Chinese)[15] Limborg C et al. Code Comparison for Simulations of Photo-Injectors, Proc. of the 2003 Particle Accelerator Conference. 2003

  • Access

    加载中

Get Citation
HU Tong-Ning, CHEN Qu-Shan, PEI Yuan-Ji, LI Ji and QIN Bin. Physical design of FEL injector based on the performance-enhanced EC-ITC RF gun[J]. Chinese Physics C, 2014, 38(1): 018101. doi: 10.1088/1674-1137/38/1/018101
HU Tong-Ning, CHEN Qu-Shan, PEI Yuan-Ji, LI Ji and QIN Bin. Physical design of FEL injector based on the performance-enhanced EC-ITC RF gun[J]. Chinese Physics C, 2014, 38(1): 018101.  doi: 10.1088/1674-1137/38/1/018101 shu
Milestone
Received: 2013-03-22
Revised: 1900-01-01
Article Metric

Article Views(1865)
PDF Downloads(374)
Cited by(0)
Policy on re-use
To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

Physical design of FEL injector based on the performance-enhanced EC-ITC RF gun

    Corresponding author: PEI Yuan-Ji,
  • Received Date: 2013-03-22
  • Accepted Date: 1900-01-01
  • Available Online: 2014-01-05

Abstract: To meet the requirements of high performance THz-FEL (Free Electron Laser), a compact scheme of FEL injector was proposed. A thermionic cathode was chosen to emit electrons instead of a photo-cathode with its complex structure and high cost. The effective bunch charge was improved to ～200 pC by adopting an enhanced EC-ITC (External Cathode Independently Tunable Cells) RF gun to extract micro-bunches; back bombardment effects were almost eliminated as well. Constant gradient accelerator structures were designed to improve energy to ～14 MeV, while the focusing system was applied for emittance suppressing and bunch state maintenance. The physical design and beam dynamics of the key components for the FEL injector were analyzed. Furthermore, start-to-end simulations with multi-pulses were performed using homemade MATLAB and Parmela. The results show that continual high brightness electron bunches with a low energy spread and emittance could be obtained stably.

    HTML

Reference (1)

目录

Link
IOPScience
SCOAP3
arXiv
Chinese Physical Society
Journal information
Introduction
Editorial Board
Others
Subscribe
Contact us
QQ: 1307685413
Tel: +86-010-88235947
Fax: +86-010-88233126
E-mail: cpc@ihep.ac.cn

  • CPC Website

  • IOP Website

  • CPC WeChat

Copyright © Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, China 京ICP备05002789号-1

Supported by: Beijing Renhe Information Technology Co. Ltd  E-mail: info@rhhz.net

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return