Impact of digitization for timing and pulse shape analysis of scintillator detector signals
2013 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, Vol. 720, 135-140 p.Article in journal, Meeting abstract (Refereed) Published
In this paper we investigate the effects of full digitization of scintillator signals. The requirements on the analog to digital converter (ADC), in terms of sampling rate (f(s)) and bit resolution, are investigated. Two applications for scintillator detectors are studied, pulse timing and particle species identification. We find that signal reconstruction using sinc interpolation can be used e.g. for high-precision timing of a sampled electric pulse. Timing performances better than 6 ps (FWHM) were obtained if f(s) equals or exceeds twice the maximum frequency of the scintillator pulse. Failing to meet this criterion deteriorates both the performance of pulse timing and particle identification. We find that the bit resolution of the ADC is very important also for timing of pulses.
Place, publisher, year, edition, pages
2013. Vol. 720, 135-140 p.
Scintillator, Digitization, Pulse shape analysis, Pulse timing
Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-204253DOI: 10.1016/j.nima.2012.12.016ISI: 000320597900035OAI: oai:DiVA.org:uu-204253DiVA: diva2:638440
2nd International Conference on Frontiers in Diagnostic Technologies (FDT), NOV 28-30, 2011, Frascati, ITALY