Journal of Radiation Industry (방사선산업학회지)

Korean Society of Radiation Industry (한국방사선산업학회)
권호 표지

Resonance Frequency Optimization of S-band High Frequency Electron Accelerator Cavity by Simulation and Precise Machining

S-band 고주파 전자가속기 가속관의 시뮬레이션 및 정밀가공을 통한 공진주파수 최적화

  • Ju, Jinsik (Radiation Equipment Research Division, Korea Atomic Energy Research Institute) ;
  • Shin, Seung-wook (College of Information & Communication Engineering, Sungkyunkwan University) ;
  • Kim, Jaehyun (Radiation Equipment Research Division, Korea Atomic Energy Research Institute) ;
  • Lee, Soomin (Radiation Equipment Research Division, Korea Atomic Energy Research Institute) ;
  • Chae, Moonsik (Radiation Equipment Research Division, Korea Atomic Energy Research Institute) ;
  • Cha, Hyungki (Radiation Equipment Research Division, Korea Atomic Energy Research Institute) ;
  • Lee, Nam-Ho (Radiation Equipment Research Division, Korea Atomic Energy Research Institute) ;
  • Lee, Byeongno (Radiation Equipment Research Division, Korea Atomic Energy Research Institute)
  • 주진식 (한국원자력연구원 방사선기기연구부) ;
  • 신승욱 (성균관대학교 정보통신대학) ;
  • 김재현 (한국원자력연구원 방사선기기연구부) ;
  • 이수민 (한국원자력연구원 방사선기기연구부) ;
  • 채문식 (한국원자력연구원 방사선기기연구부) ;
  • 차형기 (한국원자력연구원 방사선기기연구부) ;
  • 이남호 (한국원자력연구원 방사선기기연구부) ;
  • 이병노 (한국원자력연구원 방사선기기연구부)
  • Received : 2018.02.20
  • Accepted : 2018.05.24
  • Published : 2018.06.30

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Abstract

High-frequency electron accelerators are widely used in the various radiation equipment such as container inspection device, non-destructive inspection system and radiation therapy. The RF characteristics of S-band (2856 MHz) side-coupled structures for accelerator cavity were measured by using E-antenna (in refection), part of the half cell cavity was found to be out of error bound from resonance frequency, and thus was re-processed. When the error bound of the frequency is within 2 MHz, it can be reduced by using external tuning device. But if the error bound is bigger than 10 MHz, external tuning device cannot be used. In this study, Based on the result of accelerator cavity simulation and the precise machining, accelerating cell part and side-coupling cell were reprocessed to produce accelerator cavity frequency that is fit to purpose.

Keywords

Acknowledgement

Supported by : NRF

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