We present a quick and easy method for the calibration of a matrix of sensors. The algorithm is based on a three-step irradiation procedure which relies only on the constancy of the delivered fluence at each step. With this method the gain of each sensor is derived relative to a reference detector. The algorithm has been applied to a matrix of (32 x 32) ionization chambers. After the calibration coefficients have been applied, by comparing the response of the matrix of chambers to a reference detector over a large field, we determined that the fluence measurement of individual chambers is better than 0.7%. The algorithm solves the cumbersome problem of the relative gain calibration of a matrix of a large number of sensors.

A method for the inter-calibration of a matrix of sensors

GARELLI, elena maria;BORIANO, Alberto;CIRIO, Roberto;GIORDANENGO, SIMONA;LA ROSA, ALESSANDRO;PERONI, Cristiana
2006

Abstract

We present a quick and easy method for the calibration of a matrix of sensors. The algorithm is based on a three-step irradiation procedure which relies only on the constancy of the delivered fluence at each step. With this method the gain of each sensor is derived relative to a reference detector. The algorithm has been applied to a matrix of (32 x 32) ionization chambers. After the calibration coefficients have been applied, by comparing the response of the matrix of chambers to a reference detector over a large field, we determined that the fluence measurement of individual chambers is better than 0.7%. The algorithm solves the cumbersome problem of the relative gain calibration of a matrix of a large number of sensors.
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M. DONETTI; E. GARELLI; F. MARCHETTO; A. BORIANO; F. BOURHALEB; R. CIRIO; I. CORNELIUS; S. GIORDANENGO; A. LA ROSA; U. NASTASI; C. PERONI
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/40317
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