Data analysis software for radionuclide standardization with a Digital Coincidence Counting System

The Nuclear Metrology Laboratory (LMN), at the IPEN in São Paulo, developed a Digital Coincidence System in order to improve its standardization capabilities. The Software Coincidence System performs data-acquisition, using a digital acquisition card, coupled to a desktop computer, configured and controlled by a proper acquisition-program. Up to four detectors can be connected to available analog inputs, for independent signal digitalization and recording of pulses time-stamps (occurrence time) and amplitudes (heights). The present work focuses on the Coincidence Analyzing Task program, developed to carry out measurement and calculation procedures, used for data-analysis. Object Oriented Programming technique was employed in order to define useful software entities and algorithms, accessible from general-purpose libraries.