Author: Kim, Y.
Paper Title Page
WEPRO090 Status of KAERI 6 MeV 9.3 GHz X-Band Electron Linac for Cancer Treatment System 2168
 
  • B.N. Lee, B.C. Lee, S.H. Lee, S. Lee, H.D. Park, K.B. Song
    KAERI, Daejon, Republic of Korea
  • P. Buaphad, Y. Kim
    ISU, Pocatello, Idaho, USA
  • S.S. Cha
    UST, Daejeon City, Republic of Korea
 
  Funding: This work was supported by a grant from the (NRF funded by the MSIFP, Korea (No.2013M2A2A4023350) and the Industrial Strategic technology development program, 10043897, funded By the MOTIE, Korea.
The X-band RF linear accelerators (LINAC’s) are popular for medical application due to its compactness. To increase the precision of treatment accuracy under circumstance in which the LINAC is mounted on an apparatus such as gantry frame or robot-arm; this is an advantage as the weight and size are more reduced. It is a 9.3 GHz magnetron with the most readily available RF generator in the X-band frequencies from 8 GHz to 12 GHz and the magnetron is mainly used for the source of the RF power in a compact LINAC. The average power of the magnetron at 9.3~GHz is generally a few MW and this amount could provide a sufficient radiation dose-rate for tumour therapy. KAERI has been developing a new compact 9.3 GHz X-band electron LINAC for a cancer treatment system. The maximum energy of the electron beam is 6 MeV and the average beam power at the tungsten target is about 1 kW. In this paper, we describe the status of development of the 6 MeV X-band LINAC at KAERI.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPRO090  
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WEPME077 Advanced Automatic Frequency Control System for a Dual Energy S-band RF Electron Linear Accelerator 2459
SUSPSNE107   use link to see paper's listing under its alternate paper code  
 
  • S.S. Cha
    UST, Daejeon City, Republic of Korea
  • Y. Kim
    ISU, Pocatello, Idaho, USA
  • B.C. Lee, B.N. Lee, H.D. Park, K.B. Song
    KAERI, Daejon, Republic of Korea
 
  Funding: This work was supported by a National Research Foundation of Korea (NRF) grant funded by the ministry of science ICT & future Planning (No. 2010-0026088), and MOTIE Korea (13-DU-EE-12).
The Radiation Instrumentation Research Division of Korea Atomic Energy Research Institute is developing a 2856 MHz dual energy [9, 6 MeV] s-band RF electron linear accelerator for security inspection. The s-band dual energy electron accelerator generates dual x-ray energy by irradiating a bunched electron beam from the cavity to a tungsten target. By detecting an x-ray, the cargo security inspection system can distinguish between organic and inorganic materials. Synchronization of the resonant frequency between the cavity and RF driver is an important factor for the stable operation of an accelerator. With a low RF driver power using the AFC, stable accelerator operations and a uniform output beam power can be obtained. This indicates that an accurate cargo inspection is possible. We used phase a frequency detector that can detect a wide frequency band and synchronize the resonance frequency between the RF driver and cavity. In this paper, we introduce a more advanced AFC system than a conventional AFC system.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPME077  
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