| Paper | Title | Page |
|---|
| MO304 | MSU Re-accelerator - the re-acceleration of low energy RIBS at the NSCL | 28 |
| | - X. Wu, G. Bollen, M. Doleans, T. L. Grimm, W. Hartung, F. Marti, S. Schwarz, R. C. York, Q. Zhao
MSU/NSCL
| |
| | The in-flight Particle Fragmentation (PF) method for
producing Rare Isotope Beams (RIBs) has been used at
the National Superconducting Cyclotron Laboratory
(NSCL) at Michigan State University (MSU) since 1989.
The upgraded Coupled Cyclotron Facility (CCF) has been
in operation for nuclear physics research since 2001 with
the experimental program largely utilizing PF produced
RIBs. To provide new research opportunities for an
experimental program ranging from low-energy coulomb
excitation to transfer reaction studies of astrophysical
reactions, a novel system is proposed at the NSCL to first
stop the high energy RIBs in a helium filled gas system,
then increase their charge state with an Electron Beam Ion
Trap (EBIT) charge breeder, and finally re-accelerate
them to about 3 MeV/u using a radio frequency
quadrupole (RFQ) followed by a superconducting linac.
The superconducting linac will use quarter-wave
resonators with optimum beta (beta_opt = beta value for which the
cavity delivers the maximum accelerating voltage) of
0.041 and 0.085 for acceleration, and superconducting
solenoid magnets for transverse focusing. An upgrade
option to achieve a beam energy up to ~12 MeV/u with
additional accelerating cryomodules is also possible. This
paper will discuss the accelerator system design and beam
dynamics simulations for the MSU Re-accelerator project. | |
 | Slides(PDF) | |