Monte Carlo simulation of hybrid pixel detectors

Autor(es)

Magalhaes, D. P. ^[1] ; Tomal, A. ^[2]

Afiliação do(s) autor(es)

^[1] Brazilian Synchrotron Light Lab LNLS, BR-13083100 Campinas, SP - Brazil

^[2] Univ Estadual Campinas, Inst Phys Gleb Wataghin, BR-13083859 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Radiation Physics and Chemistry; v. 167, FEB 2020.
• Citações Web of Science: 0

Resumo

Semiconductor sensors are extensively used for X-ray detection, both for spectroscopy and 2D imaging. In this work, the Monte Carlo code PENELOPE v. 2014 with the PenEasy v. 2015 extension was applied for simulating a Medipix3RX detector, including the sensor and the ASIC layers. The code was modified to include the charge dispersion effect modelling at the Pixelated Imaging Detector tally, and validated by investigating the influence of the electric field, incident energy, beam position, pixel size and also by determining the Modulation Transfer Function. The results were compared to experimental data and presented a very good agreement. The Monte Carlo simulation can be used to investigate the detector response and its influence on measured data, such as spatial resolution and X-ray spectra distortion. Besides, the simulation can be applied to determine the energy deposition in each layer of the detector, useful for detection efficiency characterization or radiation damage studies. (AU)

• Processo FAPESP: 11/51594-2 - Desenvolvimento de um sistema computacional para a simulação da interação da radiação ionizante com o material genético humano
• Beneficiário: Mario Antonio Bernal Rodriguez
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 15/21873-8 - Desenvolvimento e implementação de metodologias para otimização de técnicas de imagens em radiologia digital
• Beneficiário: Alessandra Tomal
• Modalidade de apoio: Auxílio à Pesquisa - Regular