Software emulator of nuclear pulse generation with different pulse shapes and pile-up

WOS: 000377399700011The optimal detection of output signals from nuclear counting devices represents one of the key physical factors that govern accuracy and experimental reproducibility. In this context, the fine calibration of the detector under diverse experimental scenarios, although time costly, is necessary. However this process can be rendered easier with the use of systems that work in lieu of emulators. In this report we describe an innovative programmable pulse generator device capable to emulate the scintillation detector signals, in a way to mimic the detector performances under a variety of experimental conditions. The emulator generates a defined number of pulses, with a given shape and amplitude in the form of a sampled detector signal. The emulator output is then used off-line by a spectrometric system in order to set up its optimal performance. Three types of pulse shapes are produced by our device, with the possibility to add noise and pulse pile-up effects into the signal. The efficiency of the pulse detection, pile-up rejection and/or correction, together with the dead-time of the system, are therein analyzed through the use of some specific algorithms for pulse processing, and the results obtained validate the beneficial use of emulators for the accurate calibration process of spectrometric systems. (C) 2016 Elsevier B.V. All rights reserved.internal IGA grant of Palacky University [IGA_PrF_2016_022]; Operational Program Education for Competitiveness - European Social Fund of Ministry of Education, Youth and Sports of the Czech Republic [CZ.1.07/2.2.00/28.0168]; Scientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [1059B211404723]Authors thank to internal IGA grant of Palacky University (IGA_PrF_2016_022) and the support by the Operational Program Education for Competitiveness - European Social Fund (project CZ.1.07/2.2.00/28.0168) of the Ministry of Education, Youth and Sports of the Czech Republic. This work was supported by the Scientific and Technological Research Council of Turkey (TUBITAK) under project No. 1059B211404723. Authors thank to Helena Sedlackova and Giorgio Zoppellaro for their help