Comparison of properties of digital spectrometer systems

Monika Mazanova; Pavel Dryak; Petr Kovar; Pavel Auerbach

doi:10.1016/j.apradiso.2013.11.063

Comparison of properties of digital spectrometer systems

Appl Radiat Isot. 2014 May:87:394-6. doi: 10.1016/j.apradiso.2013.11.063. Epub 2013 Dec 3.

Authors

Monika Mazanova¹, Pavel Dryak², Petr Kovar², Pavel Auerbach²

Affiliations

¹ IIR Department, Czech Metrology Institute, Radiova 1, CZ-102 00 Prague 10, Czech Republic. Electronic address: MMAZANOVA@CMI.CZ.
² IIR Department, Czech Metrology Institute, Radiova 1, CZ-102 00 Prague 10, Czech Republic.

PMID: 24342559
DOI: 10.1016/j.apradiso.2013.11.063

Abstract

We have tested two digital spectrometer systems, the DSP 9660 and Lynx(®) modules, connected to a HPGe detector. Lynx(®) is a fully integrated 32K channel signal analyzer based on digital signal processing techniques, which offers advanced digital stabilization. The model DSP 9660 digitalizes the signal directly at a very high sampling rate. The evaluated properties were integral nonlinearity, differential linearity, channel profiles, resolution and throughput. We found that the DSP system has slightly inferior resolution and throughput in comparison with the Lynx(®) system.

Keywords: Channel profiles; Differential linearity; Digital signal analyzer; Incoming count rates; Integral linearity.