Author: Kim, S.H.
Paper Title Page
TUPPT004 The Development of Control System for 9 MeV Cyclotron 159
  • Y.S. Lee, J.-S. Chai, S.Y. Jung, H.S. Kim, H.W. Kim, S.H. Kim, J.C. Lee, S.H. Lee, J.K. Park, S. Shin, H.S. Song, Y.H. Yeon
    SKKU, Suwon, Republic of Korea
  • K.-H. Park
    PAL, Pohang, Kyungbuk, Republic of Korea
  The Sungkyunkwan University has developed the 9 MeV cyclotron for producing radio isotopes. In order to operate the cyclotron stably, all sub-systems in the cyclotron are controlled and monitored consistently. Therefore, each sub-system includes control devices, which is developed based on PLC, or DSP chip and the sub control modules interface with main control system in real time. As main control system, we choose the CompactRIO system from NI (National Instrument) to take into account the latency and robust control. The control system has high-performance processor running real-time OS, so that the system can control the cyclotron fast and exactly. In addition, the system can be remotely accessed over the network to monitor the status of cyclotron easily. The configuration of control system for 9 MeV cyclotron and performance test result will be described in this paper.  
TUPPT019 Development Study of Penning Ion Source for Compact 9 MeV Cyclotron 195
  • Y.H. Yeon, J.-S. Chai, T.V. Cong, Kh.M. Gad, M. Ghergherehchi, S.Y. Jung, H.S. Kim, H.W. Kim, S.H. Kim, S.H. Lee, Y.S. Lee, X.J. Mu, S.Y. Oh, S. Shin
    SKKU, Suwon, Republic of Korea
  Funding: This research was supported by WCU (World Class University) program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology (R31-2008-10029).
Penning Ion Gauge(PIG) have been used in internal source for cyclotron. PIG source for internal source of 9 MeV cyclotron produces H ion. This source consists of cold cathode which discharges electrons for producing H ion and anode for making plasma wall. Cold cathode material tantalum was used for emitting electrons and tungsten copper alloy was used for anode. The size of PIG source is related to size of cyclotron magnet. Optimization of cathode and anode location and sizing were needed for simplifying this source for reducing the size of compact cyclotron. Transportation of electrons and number of secondary electrons has been calculated by CST particle studio. Motion of H2 gas has been calculated by ANSYS. Calculation of PIG source in 9 MeV cyclotron has been performed by using various chimneys with different size of expansion gap between the plasma boundary and the chimney wall. In this paper design process and experiment result is reported.
TUPSH013 Design Study of 10 MeV H Cyclotron Magnet 248
  • H.S. Kim, J.-S. Chai, M. Ghergherehchi, H.W. Kim, S.H. Kim, S.H. Lee
    SKKU, Suwon, Republic of Korea
  Funding: This work has been supported by National Research Foundation of Korea funded by the Ministry of Science, ICT and Future Planning (NRF-2010-0025952).
For the past decades, PET (positron emission tomography) has been remarkable growth in market. PET using 18F is widely provided for cancer screening and expected to be installed at small and medium hospital for convenience of patients. At Sungkyunkwan University, 10 MeV H cyclotron, which produces 18F is being developed. In this paper, we demonstrated main magnet design and whole design procedure was explained. The result of design is verified by orbit analysis and single particle tracking. The description of the obtained result is presented in this paper.
WEPPT017 Beam Tracking Simulation for a 9 MeV Cyclotron 356
  • S.Y. Jung, J.-S. Chai, J.-S. Chai, H.W. Kim, S.H. Kim, Y.S. Lee, H.S. Song, Y.H. Yeon
    SKKU, Suwon, Republic of Korea
  Following the adoption of internal PIG ion source making cyclotron more compact, the delicate beam trajectory simulation is required. In this paper, the optimization of initial condition of H-beam for the stable and well-controlled beam until the extraction region is reported. To accommodate the beam, the electromagnetic field distribution was analyzed by OPERA-3D and its phase error was verified with CYCLONE v8.4. In each iterative design, the beam trajectory was calculated by own developed numerical code to estimate its performance. The beam characteristics including the beam orbit, centering, energy gain and RF acceptance for vertical and horizontal directions were evaluated.