Author: Yoon, J.H.
Paper Title Page
TUAO02
 The Development of ECR Ion Source for Medical Applications  
 
  • B.S. Lee, J. Bahng, S. Choi, J.G. Hong, H.G. Kim, S.J. Kim, J.W. Ok, J.Y. Park, M. Won, J.H. Yoon
    Korea Basic Science Institute, Busan, Republic of Korea
  • J. Bahng
    Kyungpook National University, Daegu, Republic of Korea
  
  Since 2009, the ECR ion source for material researcher was developed at Korea Basic Science Institute (KBSI). From our efforts during 7 years, The service of 28 GHz ECR ion source of KBSI was succeeded in this year. Our new project is started based on developed skills for 28GHz ECR ion source. In this year, we are started proton ECR ion source with high current for medical application that is Boron Neutron Capture Therapy (BNCT), Proton Therapy. The first step is development of proton ECR ion source with beam current of 23mA. In this paper, we will suggest design results and manufacturing status of proton ECR ion source for BNCT. Also, we will introduce the future plan about development of compact proton therapy and will report plans for feasibility study.  
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THAO02
 Development Status of 28 GHz Superconducting ECR Ion Source for the KBSI Accelerator  
 
  • S. Choi, J. Bahng, J.G. Hong, S.J. Kim, B.S. Lee, J.W. Ok, J.Y. Park, M. Won, J.H. Yoon
    Korea Basic Science Institute, Busan, Republic of Korea
  
  Funding: This work was supported by the KBSI under Grant No. C36220.
A 28 GHz superconducting ECR ion source has been developed as an injector apparatus for heavy ion accelerator of KBSI. The final goal of accelerated ion beam was aimed to generate fast neutrons with the proton target by p(Li, n)Be reaction under inverse kinematics scheme. In 2014, most of parts for ECR ion source was developed and assembled. We have made the first ECR plasma generation and ion beam extraction, which was reported in 2014. For optimizing the operational issues of ECR ion source, we carried out various experiments with respect to several species of ion beam. Recently, we have encountered to maintain the cryogenics for superconudcting magnet due to the operating time of cryocooler and compressor. We modified three parts during maintanance: (1) installation of iron pole in the hexapole magnet to enhance the radial magnetic field, (2)new recondensation device to increase the efficiency of the liquid helium liquification, (3)bias disk modification for better beam extraction. We will present the current status and further modificaion effect on the 28 GHz superconducting ECR ion source of KBSI. 		 
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