Some Energy and Angular Characteristics of Electrons in Electromagnetic Cascades in Air
Abstract
The angular distribution of electrons with threshold energies of 20 MeV (the lowest energy at which electrons radiate Cerenkov photons in the air) are considered. The results are based on Monte Carlo calculations of the development of electromagnetic cascades. A set of showers with energy thresholds equals 20 MeV and primary photon energies equals 10, 20, 30, and 100 GeV is simulated. Information about the particle properties (energy, angle, and radial displacement) is provided at each radiation length of depth. The electrons are at much smaller angles to the shower axis than were those of Messel and Crawford (1970); this explains the discrepancy in angular distribution of Cerenkov light in air between the two.
 Publication:

International Cosmic Ray Conference
 Pub Date:
 1981
 Bibcode:
 1981ICRC....6..256S
 Keywords:

 Angular Distribution;
 Cosmic Ray Showers;
 Electron Distribution;
 Electron Energy;
 Electron Flux Density;
 Cerenkov Radiation;
 Monte Carlo Method;
 Space Radiation;
 ANGULAR DISTRIBUTION;
 COSMIC RAY SHOWERS;
 ELECTRON DISTRIBUTION;
 ELECTRON ENERGY;
 ELECTRON FLUX DENSITY;
 CERENKOV RADIATION;
 MONTE CARLO METHOD