Abstract
We describe the performance of the EXAM detector during its five hour balloon flight in 1988. EXAM is an experiment designed to search for cosmic rays of extragalactic origin which are made of antimatter. The EXAM technique to identify antinuclei is unique, being based on higher order corrections to electronic stopping power of charged particles, and on the response characteristics of CR-39 track-etch detectors, plastic scintillators, and Cherenkov radiators. Included in the present paper are the completed analysis of the electronic detectors, and preliminary results of the analysis of the track-etch detectors, including a demonstration of our ability to match particles identified with the drift tube tracking elements during the flight with their tracks found in the passive CR-39 detectors. When the CR-39 analysis is complete, we will have approximately 10 000 events for which antimatter analysis can be made.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
