Monte Carlo Simulation of the OLVE-HERO Orbital Experiment

The High Energy Ray Observatory (HERO) is a project for a space experiment based on an ionization calorimeter to measure the spectrum and composition of cosmic rays. The effective geometric factor of the installation is not less than 12 m2 sr for protons and not less than 16 m2 sr for nuclei and electrons. During ~5–7 years of exposure, this mission will measure the element-by-element spectra of cosmic rays in the energy range 1012 –1016 eV/particle with a high energy resolution. A Monte Carlo simulation of the experiment using a borated scintillator as a part of the calorimeter is presented.