DOI QR코드

DOI QR Code

Conceptual design of cryomodules for RAON

  • Kim, Y. (Institute for Basic Science) ;
  • Lee, M.K. (Institute for Basic Science) ;
  • Kim, W.K. (Institute for Basic Science) ;
  • Jang, H.M. (Institute for Basic Science) ;
  • Choi, C.J. (Institute for Basic Science) ;
  • Jo, Y.W. (Institute for Basic Science) ;
  • Kim, H.J. (Institute for Basic Science) ;
  • Jeon, D. (Institute for Basic Science)
  • Received : 2014.06.09
  • Accepted : 2014.08.28
  • Published : 2014.09.30

Abstract

The heavy ion accelerator that will be built in Daejeon, Korea utilizes superconducting cavities operating in 2 K. The cavities are QWR (quarter wave resonator), HWR (half wave resonator), SSR1 (sing spoke resonator1) and SSR2. The main role of the cryomodule is supplying thermal insulation for cryogenic operation of the cavities and maintaining cavities' alignment. Thermal and structural consideration such as thermal load by heat leak and heat generation, cryogenic fluid management, thermal contraction, and so on. This paper describes detailed design considerations and current results have being done including thermal load estimation, cryogenic flow piping, pressure relief system, and so on.

Keywords

References

  1. C. Pagani, and P. Pierini, "Cryomodule design, assembly and alignment," 12th international workshop of RF superconductivity, 2003, USA.
  2. T. P. Wangler, RF Linear Accelerator, 2nd ed. Wiley-VCH, 2008.
  3. L. Dufay, C. Policella, J.M. Riebland, and G. Vandoni, "A large-scale test facility for heat load measurements down to 1.9 K," Prodeedings of CEC-ICMC 2001, 2011, USA.
  4. X.L. Wang, W. Maschmann, J. Eschke, O Sawlanski, R. Klos, K. Jensch, B. Petersen, "Thermal performance analysis and measurments for the accelerator prototype modules of European XFEL," TESLA technology collaboration meeting, 2011, Beijing.
  5. E. Chojnacki, E. Smith, R. Ehrich, V. Veshcherevich, S. Chapman, "Cryogenic heat load of the Cornel ERL main linac cryomodule," prodeedings of SRF2009,2009, Germany.
  6. F. Casagrande, M. Johnson, M. Leitner, D. Arenius, V. Ganni, W.J. Schneider, M.A. Wiseman, Y. Xu, and M. Barrios, "Integrated thermal analysis of the FRIB cryomodule design," Proceedings of IPAC2012, 2012.
  7. S. Kazakov, "325 MHz coupler review", Fermilab, unpublished
  8. J.D. Gonczy, T.H. Nicol, and R.C. Niemann. "Design and analysis of the SSC dipole magnet suspension system", In Proceedings of I ISC, 1989.
  9. Expansion joint manufacturers association, EJMA, 8th ed., 2003
  10. G. Horlitz, B. Petersen, D. Sellmann, S.W. Van Sciver, J.G. Weise nd, and S. Wolff, "The TESLA 500 cryogenic system and He II two-phase flow: issue and planned experiments," Cryogenics, vol 37, 1997.
  11. Hepak ver 3.4, Cryodata Inc.
  12. D. Gusesell, R. Stierlin, G. Cavallari, and I Gorine, "Pressure prote ction against vacuum failures on the cryostats for LEP SC cavities, " Proceedings of 4th Workshop on RF Superconductivity, 1989.
  13. Compressed gas association, CGA S-1.3, 2008.

Cited by

  1. Cool-down test of HWR cryomodule for RAON vol.17, pp.4, 2015, https://doi.org/10.9714/psac.2015.17.4.043