Author :
Borchi, E. ; Furetta, C. ; Giubellino, P. ; Lamarche, F. ; Leroy, C. ; Macii, R. ; Paludetto, R. ; Pensotti, S. ; Penzo, A. ; Pisani, M. ; Ramello, L. ; Rancoita, P.G. ; Riccati, L. ; Salvato, G. ; Seidman, A. ; Terzi, G. ; Villari, A. ; Vismara, L.
Abstract :
In a calorimeter with silicon readout, the use of a combination of low-Z (Fe) and high-Z (Pb) materials as absorbers enables the transformation of the electron energy distribution of the incident showers in two media with different critical energies via the filtering effect. As a result, the electromagnetic energy and consequently the e/MIP ratio value can be substantially reduced as a function of the thickness of high-Z (Pb) material present in the absorber, making it possible to tune the e/ pi ratio and making possible the achievement of the compensation condition e/ pi =1.<>
Keywords :
iron; lead; semiconductor counters; silicon; Fe; Pb; Si; compensation condition; electromagnetic energy; electron energy distribution; filtering effect; incident showers; Detectors; Electromagnetic measurements; Electrons; Energy loss; Energy measurement; Energy resolution; Fluctuations; Physics; Sampling methods; Silicon;
