Simple, inexpensive dipole spectrometer for ISABELLE

The magnets from obsolete large cyclotrons have been found to be extremely useful as spectrometer magnets at high energy physics laboratories. The Chicago cyclotron magnet is the basis of a large spectrometer at Fermilab, where very interesting measurements of muon production and interactions have been conducted. Fermilab is now considering the acquisition of the Nevis cyclotron magnet as the basis of another di-muon and hadron spectrometer. The magnet from the Carnegie Institute of Technology cyclotron has been transported to CERN where it is to be used as a spectrometer magnet at the ISR. A proposal to acquire the Space Radiation Effects Laboratory (SREL) 5-m cyclotron magnet for use as the basis of a large, simple dipole spectrometer at an ISABELLE colliding-beam intersection is presented