Monte-Carlo Analysis of Different High-Z Coating Layers as X-rays Detective Quantum Efficiency Intensifiers for Silicon Detectors.

NICOLÁS MARTÍN; MIGUEL SOFO HARO; MARTÍN PÉREZ; JIOSÉ LIPOVETZKY; MAURO VALENTE

EXPLORE-THE JOURNAL OF SCIENCE AND HEALING

ELSEVIER SCIENCE INC

Lugar: Amsterdam; Año: 2023

1550-8307

—Silicon detectors have a limited hard X- and gamma rays quantum-yield, mostly, devices fabricated in dedicated CMOS process for consumer electronics, where the sensitive volume is formed by the depletion region of a pn-junction of few or fractions of microns. This work reports on a Monte Carloapproach based on the PENELOPE code, to analyze the quantum yield-enhancement of high-Z coatings for Silicon detectors. The performance of different materials has been studied by simulationobtaining that the gadolinium dioxide produces the maximum efficiency of 3 % for photons with energy over 50 keV