Linear attenuation coefficients from breast-equivalent materials (CIRS and PMMA) using CdTe detector applying MCNPx simulations spectra correction

Squair, Peterson Lima; Mendes, Bruno; Oliveira, P. M. C. de; Souza, Luiza Freire de; Nogueira, Maria do Socorro

doi:10.1117/12.2564000

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2022

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“…An alternative way to obtain calibration coefficients is to use Monte Carlo (MC) codes to simulate the detector and calibration procedure. Various types of detectors have already been modeled for various purposes using MC codes (Mendes et al, 2019;Silveira et al, 2019;Squair et al, 2020), including Geiger Counters (Meric et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Estimación Tridimensional Del Área De Regiones Interés en Frutos De Mango Mediante Imágenes Digitales

Alvarado¹,

Franco²,

Salazar³

et al. 2022

JER

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In this work, the RDS-80A surface contamination monitor (SMC) was modeled on MCNP6 and GEANT4 and the simulated count rates for C-14, Cl-36 and Sr-90/Y-90 planar sources were compared with experimental values. Differences in count rates obtained with MCNP6 were less than ± 5% compared with the experimental values. The Cl-36 source simulation showed the greatest difference -4.3 %. In the cases simulated with GEANT4, the differences in counting rates were presented with a modulus around 15%, with the Sr-90/Y-90 source being the one with the greatest difference (15.4%). The results show that both codes can be used to simulate the experimental procedures for SCM calibration. The validated modeling will be very useful to evaluate uncertainties in the calibration procedure and to define calibration coefficients for different radionuclides.

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Section: Introductionmentioning

confidence: 99%