A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z    

Kim, Y.-H.

Paper Title Page
TUPLS051 Development of PEFP 20 MeV Proton Accelerator 1609
 
  • Y.-S. Cho, H.M. Choi, S.-H. Han, I.-S. Hong, J.-H. Jang, H. S. Kim, K.Y. Kim, Y.-H. Kim, H.-J. Kwon, K.T. Seol, Y.-G. Song
    KAERI, Daejon
  
  A 20 MeV proton accelerator has been developed as a low energy part of PEFP (Proton Engineering Frontier Project) 100 MeV accelerator. The 20 MeV accelerator consists of ion source, LEBT (Low Energy Beam Transport), 3 MeV RFQ (Radiofrequency Quadrupole) and 20 MeV DTL (Drift Tube Linac). After the field tuning and high power RF conditioning of the accelerating cavities, the first beam test of the 20 MeV accelerator is underway. During the test, the pulsed proton beam was extracted from the ion source by pulsing the high voltage power supply. Two 1.1 MW, 350MHz RF systems were used to drive the 20 MeV accelerator. The current transformers between DTL tanks and Faraday cup at the end of 20 MeV DTL were used to measure the beam current. In this paper, the development of 20MeV accelerator are summarized and the first beam test results are discussed.  
TUPLS052 Beam Dynamics of the PEFP Linac 1612
 
  • J.-H. Jang, Y.-S. Cho, K.Y. Kim, Y.-H. Kim, H.-J. Kwon
    KAERI, Daejon
  
  The PEFP Linac consists of a 50 keV ion source, LEBT, 3 MeV RFQ, 20 MeV DTL called DTL1, MEBT, and 100 MeV DTL called DTL2. The MEBT includes two small DTL tanks, which match the 20 MeV proton beams into the DTL2, and a bending magnet, which extracts the 20 MeV proton beams to the experimental hall. We will present the full beam dynamics study from the entrance of the DTL1 to the end of DTL2 with the initial beam parameters obtained from a simulation study of the RFQ. Our study focuses on the longitudinal beam matching in order to compensate the missing RF effect between every neighboring DTL tanks as well as the full beam matching between DTL1 and DTL2.  
WEPLS077 Considerations on the Design of the Bending Magnet for Beam Extraction System of PEFP 2556
 
  • Y.-H. Kim, Y.-S. Cho, J.-H. Jang
    KAERI, Daejon
  
  The PEFP is designed to have two beam extraction lines at the 20 MeV end and 100MeV end for beam utilization. So, the bending magnet to extract the beam from the beam line is located among the MEBT. This implies that there is a long drift space between the focusing structures, while, from the beam dynamics study, it is recommended to make the drift space shorter. In this study, we design and compare some bending magnets to satisfy the beam dynamics requirements.