In situ measurement of transuranics using a calcium fluoride scintillation detection system |
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| Authors: | M J Rudin W M Richardson P G Dumont W H Johnson |
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| Institution: | (1) Department of Health Physics, University of Nevada, Las Vegas, 4505 Maryland Parkway, Las Vegas, NV 89154, USA;(2) Aptec-NRC, 125 Titus Avenue, Warrington, PA 18976, USA |
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| Abstract: | A prototype scintillation spectrometer capable of measuring low energy photons from transuranic elements in groundwater has been developed for in situ applications. The detector is a CaF2 (Eu) crystal enclosed in a stainless steel casing with a 19 mg·cm-2 stainless steel entrance window. Evaluation of the system was performed in the laboratory by submersing the probe into a number of aqueous solutions containing varying concentrations of 241Am in a simulated well environment. Spectra obtained had easily discernible peaks associated with the low energy L X-rays and the 60 keV gamma-ray photopeak of 241Am. |
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