برنامه پایه اکسل برای محاسبه تابشها و تشعشعات اتمسفری EXPACS represents "EXcel-based Program for calculating Atmospheric Cosmic-ray Spectrum". The program was made for estimating atmospheric cosmic-ray spectrum based on PARMA: PHITS based Analytical Radiation Model in the Atmosphere. It is capable of calculating not only neutron but also proton, He nucleus, muon, electron, positron and photon spectra for anywhere in the atmosphere at the altitudes below 20 km. It also enables us to estimate the ...