Abstract
This paper describes an early-stage evaluation of a purpose-designed extraction/detection system that can be deployed by non-specialists either on-site or as part of a mobile laboratory. The system comprises three main components; (1) an optimised compact extraction system for recovery of radionuclides from the waste form; (2) an extraction test strip designed to recover the radionuclides from the waste digest; (3) a scintillation-based detection system capable of quantification of alpha, low energy beta and high energy beta emitting radionuclides. Data are presented on the preliminary assessment of the extraction/detection system for the measurement of 90Sr and 99Tc in aqueous wastes.
Highlights
This paper describes an early-stage evaluation of a purpose-designed extraction/detection system that can be deployed by non-specialists either on-site or as part of a mobile laboratory
The system comprises three main components; (1) an optimised compact extraction system for recovery of radionuclides from the waste form; (2) an extraction test strip designed to recover the radionuclides from the waste digest; (3) a scintillation-based detection system capable of quantification of alpha, low energy beta and high energy beta emitting radionuclides
Data are presented on the preliminary assessment of the extraction/ detection system for the measurement of 90Sr and 99Tc in aqueous wastes
Summary
Robust characterization of nuclear wastes is critical in underpinning nuclear decommissioning programmes and its importance has been recently highlighted by Emptage et al, [1]. The aim of the current study was to evaluate the feasibility of using dip-stick technologies for rapid radionuclide screening in support of nuclear waste characterization. Key operational parameters were assessed including the mass of resin loaded onto the dip-stick, the rate of analyte uptake and the correlation between activity on the dip-stick and activity concentration of the analyte in solution.
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