1. Fast digital 4πβ−4πγ coincidence counting with offline analysis at IRA
- Author
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Youcef Nedjadi, Frédéric Juget, François Bochud, Claude Bailat, and M. Teresa Durán
- Subjects
Data processing ,Radiation ,Analogue electronics ,business.industry ,Computer science ,010403 inorganic & nuclear chemistry ,01 natural sciences ,030218 nuclear medicine & medical imaging ,0104 chemical sciences ,03 medical and health sciences ,0302 clinical medicine ,Data acquisition ,Software ,Scalability ,Offline analysis ,Coincidence counting ,business ,Field-programmable gate array ,Computer hardware - Abstract
IRA recently launched a project to digitize all the data acquisition systems it uses for primary radionuclide standardizations. It is well-known that the digital approach presents numerous advantages over the traditional analog electronics such as information losslessness, scalability, online and/or offline data processing, and it is also a solution to the growing difficulties to repair or renew ageing modules. As a first step in this wider program, our institute set-up a 4πβ-4πγ digital coincidence counting system, with FPGA (Field Programmable Gate Array)-based commercial boards from National Instruments (NI), to perform data acquisition and offline data analysis. Choosing all components and software from the same supplier provides a full compact and consistent electronic system. To demonstrate and validate the capacity of this system to standardize the activity of radioisotopes, we compare its predictions for the activity concentration of 133Ba, 166mHo and 18F solutions with the results from a coincidence counting system with analog electronics, as well as with the results from other primary methods and a secondary measurement performed with an IG11 ionization chamber (CIR, chambre d'ionization de reference) with an equivalent activity traceable to the Systeme International de Reference.
- Published
- 2018