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Conference Papers Year : 2014

Recent advances in digital coincidence counting for Radionuclide Metrology

Abstract

The radioactivity measurement techniques developed within the EURAMET EMRP 'MetroFission' Joint Research Project, were aimed at performing on-site activity measurements at the primary standard level (4πβ-γ coincidence counting) for a wide range of radionuclides utilizing recent advances in high-speed digital sampling and digital signal processing. The state-of-the-art technology employed within this project provides up to 14-bit digitizer systems operating with sampling rates in the order of 108 to 109 samples-per-second, incorporating on-board FPGA devices, which greatly enhances the application of digital signal processing for the implementation of digital coincidence counting. These devices when coupled to suitable analysis software, demonstrate a significant improvement in the provision of primary standards of radioactivity. This manuscript provides a description of the systems employed, along with recommendations regarding optimization of the digital sampling of signals from photo-multiplier tubes and pre-amplifiers and compare the benefits of 'off-line' versus 'on-line' 4πβ-γ digital coincidence counting systems.
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Dates and versions

cea-01822344 , version 1 (02-08-2023)

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J. Keightley, Christophe Bobin, Jacques Bouchard, M. Capogni, S. Loreti, et al.. Recent advances in digital coincidence counting for Radionuclide Metrology. 2013 3rd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications (ANIMMA), Jun 2013, Marseille, France. pp.06728057, ⟨10.1109/ANIMMA.2013.6728057⟩. ⟨cea-01822344⟩
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