The nuclear track detector CR39: results from different experiments

Abstract

The nuclear track detector CR39 was calibrated with different ions of different energies. Due to the low detection threshold (Z/beta~6e) and the good charge resolution (sigma_Z ~ 0.2e for 6e < Z/beta <83e with 2 measurements), the detector was used for different purposes: (i) fragmentation of high and medium energy ions; (ii) search for magnetic monopoles, nuclearites, strangelets and Q-balls in the cosmic radiation.Comment: 4 pages, 5 eps figures. Invited talk at the 11th Topical Seminar on Innovative Particle and Radiation Detectors, Siena, Italy, 1-4 October 200