First results in the development of an on-line digital counting platform dedicated to primary measurements

C Bobin; J Bouchard; B Censier

doi:10.1016/j.apradiso.2009.11.067

First results in the development of an on-line digital counting platform dedicated to primary measurements

Appl Radiat Isot. 2010 Jul-Aug;68(7-8):1519-22. doi: 10.1016/j.apradiso.2009.11.067. Epub 2009 Dec 2.

Authors

C Bobin¹, J Bouchard, B Censier

Affiliation

¹ CEA, LIST, Laboratoire National Henri Becquerel (LNE-LNHB), Gif-sur-Yvette, France. christophe.bobin@cea.fr

PMID: 20006520
DOI: 10.1016/j.apradiso.2009.11.067

Abstract

This paper describes the first step in the development of a digital platform dedicated to primary radionuclide measurements. In order to validate the implementation of an on-line processing based on extendable dead-times, a FPGA-based digital system has been programmed for liquid scintillation counting. After a description of the hardware, TDCR (Triple to Double Coincidence Ratio) measurements are presented. Comparisons of activity measurements with the classical system operating at LNHB are used to validate the new system; coincidence counting differences observed when increasing the resolving time in the digital platform are discussed.