Geometrical parameters of a detection system: a Monte Carlo approach - Likhachev, V P; Martins, Marcos Nogueira; Arruda Neto, João Dias de Toledo; Bueno, C C; Santos, Marcelo Damy de Souza; Evseev, I G; Gonçalves, J A C; Helene, Otaviano Augusto Marcondes; Paschuk, S A; Schelin, H R (Nuclear Instruments and methods in physics Research A, 1997)