A long-lived high-field pulsed magnet adaptable to experimental requirements

Abstract A pulsed-transformer (flux-concentrator) magnet has been built and used in which the high-field region can be shaped according to experimental requirements. Access to the high-field region is easily provided both parallel to the field direction and in a plane normal to it. The design is such that the magnet can be dismantled completely, repaired or modified, and reassembled, even after having been operated for several thousand pulses. Two such magnets have been used in an experiment to measure the magnetic moment of the Λ° hyperon; each produced 200 kG in a volume of 200 cm 3 for about 5000 pulses and is still in usable condition.