A calibration method for the test system of scintillator detectors

J. BOSSIO SOLA; A. BOTTI; M. PLATINO; F. SANCHEZ; F. SUAREZ; A. LUCERO; M. VIDELA; O. WAINBERG; A. ALMELA

Buenos Aires

Conferencia; CTA-LINK Meeting; 2012

The aim of this work is to show a calibration method of a test system that will be systematically implemented for the particle detectors developed and produced at the ITeDA facilities. A big number of more than 16000 individual scintillator strips of 4.1 cm x 1.0 cm x 400 cm will have to be tested together with its associated optical fiber. A reliable and fast testing method is therefore compulsory to characterize all the detectors. The detector testing routine consists of two steps: first each scintillator is scanned using a 137 Cs radioactive source to obtain its attenuation curve and, secondly, the resulting curve is normalized by means of background muons using a coincidence device through a specific point over the scintillator. The details of the calibration procedure are presented along with preliminary results from a prototype detector testing.