Metrological characterization of the ADONIS system used in gamma-ray spectrometry

In gamma-ray spectrometry, new acquisition systems based on digital signal processing are now commercially available. In order to determine their performance at high count rates, the Commissariat à l’Energie Atomique (CEA), Laboratoire National Henri Becquerel has tested several of these systems. These tests have clearly shown that the performance levels announced by the manufacturers were generally not met. It was therefore a logical step to include the Atelier de DévelOppement Numérique pour l’Instrumentation en Spectrométrie (ADONIS) system in these tests. ADONIS is the new numerical system for gamma-ray spectrometry, developed by the CEA Service d’Instrumentation et d’Application des Rayonnements.