SRF2011 - List of Authors (Leitner, D.)

Paper

Title

Page

Design Status of the SRF Linac Systems for the Facility for Rare Isotope Beams

56

M. Leitner, J. Bierwagen, J. Binkowski, S. Bricker, C. Compton, J.L. Crisp, L.J. Dubbs, K. Elliott, A. Facco, A. Fila, R. Fontus, A.D. Fox, P.E. Gibson, P. Guetschow, L.L. Harle, M. Hodek, J.P. Holzbauer, M.J. Johnson, S. Jones, T. Kole, B.R. Lang, D. Leitner, I.M. Malloch, F. Marti, D. R. Miller, S.J. Miller, T. Nellis, D. Norton, R. Oweiss, J. Popielarski, L. Popielarski, X. Rao, G.J. Velianoff, N. Verhanovitz, J. Wei, J. Weisend, M. Williams, K. Witgen, J. Wlodarczak, Y. Xu, Y. Zhang
FRIB, East Lansing, Michigan, USA

Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661
The Facility for Rare Isotope Beams (FRIB) will utilize a powerful, superconducting heavy-ion driver linac to provide stable ion beams from protons to uranium, at energies of > 200 MeV/u at a beam power of up to 400 kW. ECR ion sources installed above ground will be used to provide highly charged ions, that will be transported into the linac tunnel approx. 10 m below ground. For the heaviest ions, two charge states will be accelerated to about 0.5 MeV/u using a room-temperature 80.5 MHz RFQ and injected into a superconducting cw linac, consisting of 112 quarter-wave (80.5 MHz) and 229 half-wavelength (322 MHz) cavities, installed inside 52 cryomodules operating at 2K. A single stripper section will be located at about 17 MeV/u (for uranium). Transverse focusing along the linac will be achieved by 9 T superconducting solenoids within the same cryostat as the superconducting rf accelerating structures. This paper describes the matured linac design, as the project is progressing towards a Department of Energy performance baseline definition in 2012. Development status of the linac subcomponents are presented with emphasis on the superconducting RF components.

Poster MOPO009 [2.495 MB]

THIOB03

Status of the ReAccelerator Facility RεA for Rare Isotopes

674

D. Leitner, D. Morris, S. Nash, G. Perdikakis, N.R. Usher
NSCL, East Lansing, Michigan, USA
C. Compton, A. Facco, M. Hodek, J. Popielarski, W. Wittmer, X. Wu, Q. Zhao
FRIB, East Lansing, Michigan, USA

The Facility for Rare Isotope Beams (FRIB) at Michigan State University (MSU) is currently in the preliminary design phase. FRIB consists of a heavy ion driver LINAC, followed by a fragmentation target station, and a ReAccelerator facility (RεA). In its final configuration, RεA will provide heavy ion beams from 0.3 MeV/u to 12 MeV/u for heaviest ions and up to 20 MeV/u for light ions. While FRIB plans to start conventional construction in 2012, the first stage of RεA is already under commissioning and will be connected to the Coupled Cyclotron Facility at MSU end of 2012. The front end of the accelerator consists of a gas stopper, an Electron Beam Ion Trap (EBIT) charge state booster, a room temperature RFQ, followed by a short SRF LINAC, which contains seven β=0.041, eight β=0.085 QWR cavities, and eight 9T focusing solenoids. RεA serves as prototyping test bed for the FRIB cryomodule development since FRIB utilizes similar cavities as installed on RεA. An overview and status of the RεA facility will be presented. The presentation will focus on the testing, beam commissioning, and operational experience of the first β=0.041 cryomodules.

Paper	Title	Page
MOPO009	Design Status of the SRF Linac Systems for the Facility for Rare Isotope Beams	56
	M. Leitner, J. Bierwagen, J. Binkowski, S. Bricker, C. Compton, J.L. Crisp, L.J. Dubbs, K. Elliott, A. Facco, A. Fila, R. Fontus, A.D. Fox, P.E. Gibson, P. Guetschow, L.L. Harle, M. Hodek, J.P. Holzbauer, M.J. Johnson, S. Jones, T. Kole, B.R. Lang, D. Leitner, I.M. Malloch, F. Marti, D. R. Miller, S.J. Miller, T. Nellis, D. Norton, R. Oweiss, J. Popielarski, L. Popielarski, X. Rao, G.J. Velianoff, N. Verhanovitz, J. Wei, J. Weisend, M. Williams, K. Witgen, J. Wlodarczak, Y. Xu, Y. Zhang FRIB, East Lansing, Michigan, USA
	Funding: This material is based upon work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661 The Facility for Rare Isotope Beams (FRIB) will utilize a powerful, superconducting heavy-ion driver linac to provide stable ion beams from protons to uranium, at energies of > 200 MeV/u at a beam power of up to 400 kW. ECR ion sources installed above ground will be used to provide highly charged ions, that will be transported into the linac tunnel approx. 10 m below ground. For the heaviest ions, two charge states will be accelerated to about 0.5 MeV/u using a room-temperature 80.5 MHz RFQ and injected into a superconducting cw linac, consisting of 112 quarter-wave (80.5 MHz) and 229 half-wavelength (322 MHz) cavities, installed inside 52 cryomodules operating at 2K. A single stripper section will be located at about 17 MeV/u (for uranium). Transverse focusing along the linac will be achieved by 9 T superconducting solenoids within the same cryostat as the superconducting rf accelerating structures. This paper describes the matured linac design, as the project is progressing towards a Department of Energy performance baseline definition in 2012. Development status of the linac subcomponents are presented with emphasis on the superconducting RF components.
	Poster MOPO009 [2.495 MB]

THIOB03	Status of the ReAccelerator Facility RεA for Rare Isotopes	674
	D. Leitner, D. Morris, S. Nash, G. Perdikakis, N.R. Usher NSCL, East Lansing, Michigan, USA C. Compton, A. Facco, M. Hodek, J. Popielarski, W. Wittmer, X. Wu, Q. Zhao FRIB, East Lansing, Michigan, USA
	The Facility for Rare Isotope Beams (FRIB) at Michigan State University (MSU) is currently in the preliminary design phase. FRIB consists of a heavy ion driver LINAC, followed by a fragmentation target station, and a ReAccelerator facility (RεA). In its final configuration, RεA will provide heavy ion beams from 0.3 MeV/u to 12 MeV/u for heaviest ions and up to 20 MeV/u for light ions. While FRIB plans to start conventional construction in 2012, the first stage of RεA is already under commissioning and will be connected to the Coupled Cyclotron Facility at MSU end of 2012. The front end of the accelerator consists of a gas stopper, an Electron Beam Ion Trap (EBIT) charge state booster, a room temperature RFQ, followed by a short SRF LINAC, which contains seven β=0.041, eight β=0.085 QWR cavities, and eight 9T focusing solenoids. RεA serves as prototyping test bed for the FRIB cryomodule development since FRIB utilizes similar cavities as installed on RεA. An overview and status of the RεA facility will be presented. The presentation will focus on the testing, beam commissioning, and operational experience of the first β=0.041 cryomodules.