A high-current electron beam ion trap as a charge breeder for the reacceleration of rare isotopes at the NSCL.
Reacceleration of low-energy rare isotope beams available from gas stopping of fast-fragment beams or from an ISOL target station to energies in the range of 0.3-12 MeV/nucleon is needed for experiments such as low-energy Coulomb excitation and transfer reaction studies and for the precise study of astrophysical reactions. The implementation of charge breeding as a first step in a reaccelerator is a key to obtaining a compact and cost-efficient reacceleration scheme. For highest efficiency it is essential that single charge states are obtained in a short breeding time. A low-emittance beam must be delivered. An electron beam ion trap (EBIT) has the potential to meet these requirements. An EBIT-based charge breeder is presently under design and construction at the NSCL as part of the construction of a reaccelerator for stopped beams from projectile fragmentation. This new facility will have the potential to provide low-energy rare isotope beams not yet available elsewhere.
Schwarz
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National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA. schwarz@nscl.msu.edu
Bollen
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Kostin
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Marti
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Zavodszky
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Crespo López-Urrutia
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Dilling
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Kester
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