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Communication Dans Un Congrès Année : 2023

A digital real-time high-resolution imaging system to quantify and identify all emitted charged particles

Résumé

This paper describes an instrumentation imaging system that provides, at real-time, localization, quantification and identification of a radioactive source with a precision up to 20μm. The localization of each decay position is obtained with using a parallel ionization multiplier gaseous detector and a reconstruction algorithm. The spatial identification of the composition of the radioactive source is performed by an original specific set of temporal and energy spectrometry techniques. The system allows with a single detector to combine the measurement of the spatial distribution with the ability to separate and quantify at real time each radionuclide. From an application point of view, this system opens up possibilities for theragnostic applications that typically use two radionuclides. Further upstream, it can optimize the production and distribution challenge of α radionuclides by allowing the identification and characterization of individual radionuclides in radionuclide chains such as 225Ac. Moreover, the measurement system and the associated method could strongly contribute to facilitate research on the biodistribution of α radionuclides that are by their nature difficult to characterize by standard methods.
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Dates et versions

hal-04371890 , version 1 (04-01-2024)

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A Bongrand, S Duval, J Donnard, Julie Champion. A digital real-time high-resolution imaging system to quantify and identify all emitted charged particles. 2023 IEEE Nuclear Science Symposium (NSS), Medical Imaging Conference (MIC) and Room Temperature Semiconductor Detector (RTSD) Conference (NSS/MIC 2023), Nov 2023, Vancouver, Canada. ⟨10.1109/NSSMICRTSD49126.2023.10338170⟩. ⟨hal-04371890⟩
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