PRISMA: A very large acceptance magnetic spectrometer for heavy ions

Abstract

PRISMA is a magnetic spectrometer for heavy ions installed at Laboratori Nazionali di Legnaro (LNL). The most interesting features of the spectrometer are: large solid angle 80 msr, wide momentum acceptance ±10%, mass resolution 1/300 via TOF, energy resolution up to 1/1000 and rotation around the target in a large angular range (−20°⩽θ⩽130°). Those performances will be made possible by software reconstruction of the ion tracks using the position, time and energy signals from the entrance and focal-plane detectors.