Jinhyuk Choi

Publications (3)0 Total impact

• Source

  Available from: cern.ch

  Conference Proceeding: Operational Status at PLS: Recent Improvrements and Changes

  Eung Soo Park, Jinhyuk Choi, Heung-Sik Kang, Mungyung Kim, Eun-Hee Lee, Tae-Yeon Lee
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  ABSTRACT: Pohang Light Source (PLS) has been operated since 1994. Last year few improvements have been made to stabilize the reference orbit drifts caused by insertion devices and other sources: The control system has been upgraded to 20 bit capability from 12 bit. The slow global orbit feedback is employed routinely in the user run times. These improvements and the operational status change is presented in this paper.
  Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the; 06/2005
• Source

  Available from: cern.ch

  Article: GUN EMITTANCE AND COMPACT XFEL

  Tae-Yeon Lee, Jinhyuk Choi
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  ABSTRACT: Role of gun emittance is discussed to build a compact XFEL machine. It is shown that low gun emittance plays the critical role of reducing the XFEL machine size.
• Source

  Available from: cern.ch

  Article: DESIGN OF THE PAL TEST FEL MACHINE

  Mungyung Kim, Jinhyuk Choi, Jung Yun Huang, Heung-Sik Kang, In Soo Ko, Tae-Yeon Lee, Jong-Seok Oh, Sung Ju Park, South Korea, Chang-Mook Yim
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  ABSTRACT: In order to the PAL-XFEL, the 1 st stage will be to build a test machine, whose design parameters are presented here. It will be a 200 MeV machine that has the target wavelength of visible range. The design details and simulation results are shown in this paper.