Simulation of 10-100 TeV Calorimeter Interactions

A Monte Carlo simulation for the interaction of cosmic ray nuclei in an emulsion chamber is described. The simulation uses the DTUNUC event generator to handle the high-energy interactions, and GEANT to follow lower-energy products. escape a thin calorimeter, meaning that the electromagnetic shower is primarily the result of the prompt decay of neu- tral pions into photons. The variation in pion distribution becomes a variation in the energy manifest in the shower. Understanding the transition curves and k distributions is an important to calibrating any calorimeter-based cosmic ray experiment. Two interesting features of an electromagnetic cascade are its transition curve and its k value. The transition curve characterizes the rate of a shower's development, generally expressed as the number of electrons as a function of depth. k is the fraction of the incident particle's energy which is ultimately visible in the electromagnetic shower. GEANT is a software tool for simulating the behavior of high-energy particles in matter. Its detailed modeling of physical processes has been validated against accelera-