The manipulation of charged particles into and out of electromagnetic traps

The manipulation of charged particles into and out of Paul and Penning ion traps is discussed in terms of the phase space volume of a particle collection and its manipulation. It is shown that such traps can have very large usable phase space volumes but that the shape of such volumes is severely mismatched to that of a typical ion beam from a separator or storage ring. Possible injection schemes are presented as well as some aspects of ion cooling within the trap and subsequent ion extraction. Possible applications to the manipulation of antiproton beams from LEAR and 10 MeV/A highly-stripped heavy ions at GSI are discussed.