Author: Lee, S.B.
Paper Title Page
MOP031
 Progress of the PAL-XFEL Undulator System  
 
  • D.E. Kim, Y.-G. Jung, H.-S. Kang, H.-G. Lee, S.B. Lee, W.W. Lee, B.G. Oh, K.-H. Park, H.S. Suh
    PAL, Pohang, Kyungbuk, Republic of Korea
  • M.-H. Cho, I.S. Ko
    POSTECH, Pohang, Kyungbuk, Republic of Korea
  • S. Karabekyan, J. Pflüger
    XFEL. EU, Hamburg, Germany
  
  Po­hang Ac­cel­er­a­tor Lab­o­ra­tory (PAL) is de­vel­op­ing 10 GeV, 0.1 nm SASE based FEL for high power, short pulse X-ray co­her­ent pho­ton sources named PAL-XFEL. At the first stage PAL-XFEL needs two un­du­la­tor lines for pho­ton source. PAL is de­vel­op­ing un­du­la­tor mag­netic struc­ture based on EU-XFEL de­sign. For hard X-ray lines, we need 18 26.0 mm pe­riod hy­brid type pla­nar un­du­la­tor struc­tures, and for soft X-ray lines, 6 pla­nar un­du­la­tor with 37 mm pe­riod is planned with a cou­ple of EPUs for po­lar­iza­tion con­trol. In this re­port we sum­ma­rize the progress in the un­du­la­tor sys­tem. Par­tic­u­lar em­pha­sis will be the re­sults of the lo­cal-K cor­rec­tion, which is es­sen­tial to speed-up the pole tun­ing process.  
 
MOP032 PAL-XFEL Magnet Power Supply System 87
 
  • S.-H. Jeong, H.-S. Kang, D.E. Kim, I.S. Ko, H.-G. Lee, S.B. Lee, B.G. Oh, K.-H. Park, H.S. Suh, Y.G. Young-Gyu
    PAL, Pohang, Kyungbuk, Republic of Korea
  
  This paper pre­sents an overview of the mag­net power sup­ply(MPS) for the PAL-XFEL. The num­ber of total MPS is 628 and they will be in­stalled along the ac­cel­er­a­tor and the un­du­la­tor sec­tions. The power ca­pac­ity of the MPS was rang­ing from about 1 A to 300 A. These MPSs were re­quired to meet the high sta­bil­ity that was sub­jected from the beam dy­nam­ics spec­i­fi­ca­tions. This paper de­scribed the over­all MPS re­quire­ments, MPS as­sem­bling, test process, con­trol scheme, in­stal­la­tion plan and so on.  
 
MOP033 Design, Fabrication, and Performance Tests of Dipole and Quadrupole Magnets for PAL-XFEL 90
 
  • H.S. Suh, M.-H. Cho, S.-H. Jeong, Y.-G. Jung, H.-S. Kang, D.E. Kim, I.S. Ko, H.-G. Lee, S.B. Lee, B.G. Oh, K.-H. Park
    PAL, Pohang, Kyungbuk, Republic of Korea
  
  PAL-XFEL is now being con­structed in Po­hang, Korea. This fa­cil­ity will con­sist of a 10 GeV linac and five un­du­la­tor beam­lines. As the first phase we will con­struct one hard X-ray and one soft X-ray beam­lines which re­quire 7 dif­fer­ent fam­i­lies of di­pole mag­nets, and 11 fam­i­lies of quadru­pole mag­nets. We are de­sign­ing these mag­nets with con­sid­er­ing the ef­fi­cient man­u­fac­tur­ing and the proper power sup­plies. In this pre­sen­ta­tion, we de­scribe the de­sign fea­tures of the mag­nets, the man­u­fac­tur­ing, and the ther­mal analy­sis with the test re­sults.