Abstract
A detector has been developed for field surveillance of radioactivity in groundwater in wells that are 7.6 cm in diameter or larger, but it can be adapted to on-line monitoring of industrial waste effluents and municipal water treatment plants, as well as facilities that process chemical and nuclear wastes. The detector utilizes the principle of direct Cherenkov radiation counting of energetic betas and gamma-rays in an aqueous medium. For 90Y in equilibrium with its parent 90Sr, the response of the detector was linear with increased concentrations. The estimated detection limit for 90Y supported by the parent 90Sr is ∼ 1 pCi/ml for a 1000 s counting internal.
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Schedule a callMore From: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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