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An optimized radiochemical method for the quantification of 36Cl in irradiated concrete from nuclear decommissioning.

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Title: An optimized radiochemical method for the quantification of 36Cl in irradiated concrete from nuclear decommissioning.
Authors: Broglia, Andrea1 (AUTHOR), Magugliani, Gabriele1 (AUTHOR) gabriele.magugliani@polimi.it, Fornara, Luca2 (AUTHOR), Piras, Cristiano3 (AUTHOR), Bilancia, Gianmarco2 (AUTHOR), Galluccio, Francesco1 (AUTHOR), Macerata, Elena1 (AUTHOR), Mariani, Mario1 (AUTHOR), Mossini, Eros1 (AUTHOR)
Source: Journal of Radioanalytical & Nuclear Chemistry. Dec2025, Vol. 334 Issue 12, p8807-8815. 9p.
Subjects: Radiochemical analysis, Cherenkov counters, Detection limit, Measurement, Chlorine isotopes, Irradiation, Nuclear facility decommissioning, Extraction (Chemistry)
Abstract: The radiochemical methods for the characterization of hard-to-measure radionuclides are often complex, laborious and expensive, especially in the case of solid samples. The present work aimed at developing a new optimized method based on Cherenkov counting for the determination of 36Cl in activated concrete. The primary goal consisted in improving simplicity and cost-effectiveness with respect to currently available methods without sacrificing performance. A chemical recovery of ≈ 90% and high decontamination from interferents were demonstrated. The method also proved to be scalable to large sample masses for clearance purposes, thereby achieving a detection limit < 5 mBq g–1. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:The radiochemical methods for the characterization of hard-to-measure radionuclides are often complex, laborious and expensive, especially in the case of solid samples. The present work aimed at developing a new optimized method based on Cherenkov counting for the determination of 36Cl in activated concrete. The primary goal consisted in improving simplicity and cost-effectiveness with respect to currently available methods without sacrificing performance. A chemical recovery of ≈ 90% and high decontamination from interferents were demonstrated. The method also proved to be scalable to large sample masses for clearance purposes, thereby achieving a detection limit < 5 mBq g–1. [ABSTRACT FROM AUTHOR]
ISSN:02365731
DOI:10.1007/s10967-025-10584-3