Semiconductor Detectors

Fettweis, P.; Verplancke, J.; Venkataraman, Ramkumar; Young, Brian; Schwenn, Harold

doi:10.1016/b978-012436603-9/50009-0

Cited by 6 publications

(4 citation statements)

References 59 publications

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“…The use of radiometric and mass spectrometry allows the determination of both long-lived isotopes and short-lived isotopes with good precision. A minimal detectable activity of 0.02 mBq/L and a detection limit varying between 15 and 200 pg·L –1 are achievable by α spectrometry and ICPMS, respectively. The proposed method compares well to other published liquid extraction methods with respect to LOD (limit of detection), PF, and extraction efficiency (Table ).…”

Section: Resultsmentioning

confidence: 99%

Cloud Point Extraction of Plutonium in Environmental Matrixes Coupled to ICPMS and α Spectrometry in Highly Acidic Conditions

2013

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A new cloud point extraction procedure has been developed for the quantification of plutonium(IV) in environmental samples. The separation procedure can be either coupled to inductively coupled plasma mass spectrometry (ICPMS) or α spectrometry for plutonium quantification. The method uses a combination of selective ligand (P,P'-di(2-ethylhexyl) methanediphosphonic acid (H2DEH[MDP])) and micelle shielding by bromine formation to enable quantitative extraction of Pu in highly acidic solutions. Cross-optimization of all parameters (nonionic and ionic surfactant, chelating agent, bromate, bromide, and pH) led to optimal of the extraction conditions. Figures of merit of the method for the detection using α spectrometry and ICPMS are reported (limit of detection, limit of quantification, minimal detectable activity, and recovery). Quantitative extractions (>95%) were obtained for a wide variety of aqueous and digested samples (synthetic urine, wastewater, drinking water, seawater, and soil samples). The method features the first successful coupling between α spectrometry and cloud point extraction and is the first demonstration of CPE suitability with metaborate fusion as a sample preparation approach, techniques used extensively in nuclear industries.

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Section: Resultsmentioning

confidence: 99%

Cloud Point Extraction of Plutonium in Environmental Matrixes Coupled to ICPMS and α Spectrometry in Highly Acidic Conditions

2013

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“…The 137 Cs specific activity on the soil samples was determined by gamma-ray spectrometry using the HPGe detector by Canberra Industries (Fettweis et al, 2003). Other main physical and chemical properties, determined on the soil samples, were the pH with a pH-metre (pH340i/set) in aqueous extract, the grain-size distribution by the Kachinsky method, and the organic carbon content by the Turin method (Arinushkina, 1970;Kuzmenkova, 2009).…”

Section: Methodsmentioning

confidence: 99%

Landscape-geochemical mapping of the North-West of Kola Peninsula

Kuzmenkova

Vorobyova

2015

Journal of Geochemical Exploration

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“…Semiconductor diode detectors represent an alternative to scintillation for radiometric detection. The principles of α and β radiation detection using silicon semiconductor diodes have been described in detail previously. , The diode device necessarily leads to planar sensor formats. For sensors in liquids, the requirement to capture the α- and β-emitting radionuclides close to the transducing medium remains.…”

Section: 9 Planar Radionuclide Sensors Based On Diodesmentioning

confidence: 99%