A STUDY OF UNCERTAINTY EVALUATION IN TRANSMISSION MEASUREMENT IN GAMMA RAY TOMOGRAPHY

Carlos C. Dantas, Silvio B. Melo, Valdemir A. dos Santos, Eric F. de Oliveira, Francisco P. M. Simões, M. Graça dos Santos, Artur R. de Aquino

Abstract

A study of uncertainty in gamma ray transmission measurement of single beam tomography is presented. The radial density distribution of the FCC (fluidized catalytic cracking) catalyst in experimental riser is shown in measured and calculated data. Discrete models are proposed to describe data and for a better understanding of density distribution measurements. Validation procedure for the measurement models and uncertainty evaluation were carried out.

Keywords

discrete models, standard uncertainty, single beam tomography

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IMEKO-TC1-TC7-2008-011.pdf

DOI

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IMEKO TC

TC1 - Education and Training in Measurement and Instrumentation

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