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Kim, S. H.

Paper Title Page
THPMN047 Commissioning Scenario for L-band Electron Accelerator by PARMELA Code 2820
 
  • H. R. Yang
  • M.-H. Cho, S. H. Kim, S.-I. Moon, W. Namkung
    POSTECH, Pohang, Kyungbuk
  • S. D. Jang, S. J. Kwon, J.-S. Oh, S. J. Park, Y. G. Son
    PAL, Pohang, Kyungbuk
  
  Funding: Work supported by KAPRA and PAL

An intense L-band electron accelerator is now being installed at PAL (Pohang Accelerator Laboratory) for initial tests. It is capable of producing 10-MeV electron beams with average 30 kW. This accelerator has a diode-type E-gun, a pre-buncher cavity, and an accelerating column with the built-in bunching section. We conduct simulational study for the commissioning scenario by the PARMELA code. At first, we observe the beam position and the beam current when the beam line is misaligned under no fields. Next, turning on focusing solenoids we observe the beam position change to check the alignments of the solenoids. Finally, varying RF power and phase of the pre-buncher we observe beam energy and beam power to obtain the optimum pre-buncher condition. In this paper, we present simulational results for each step. We also present commissioning strategies based on these results.

 
WEPMN060 Fabrication of ICHIRO Nine-cell Cavities in PAL for STF of KEK 2173
 
  • I. S. Park
  • J. Choi, C. W. Chung, M.-S. Hong, W. H. Hwang, D. T. Kim, Y. C. Kim, I. S. Ko, H. C. Kwon, Y. U. Sohn
    PAL, Pohang, Kyungbuk
  • S. W. Kim, S. H. Kim, S. K. Song
    RIST, Pohang
  
  Funding: Korea Ministry of Science & Technology

Pohang Accelerator Laboratory has studied SRF cavity and set up SRF test laboratory from January 2006. The first activity for SRF research was to develop SRF 3rd harmonic cavity for Pohang Light Source, which was designed, fabricated and tested in 2006. The cryostat are under design. The fabrication of ICHIRO cavity, which is ILC ACD cavity, is PAL's second activity related to SRF. Deep drawing, trimming and welding by electron beam for a 9-cell ICHIRO cavity were done in PAL. The polishing processes for the RF surface including electropolishing were done in KEK under the collaboration between two institutes. This will be tested with real beam in STF-1 of KEK in second half period of 2007. This paper reports the results of fabrication of ICHIRO single- and nine-cell cavities performed in PAL.