Determination of the isotopic ratio 234U/238U in liquid scintillation and environmental applications

D. Bianchi; P. Cortese; G. Dellacasa; I. Merlano

doi:10.1016/j.nima.2005.07.020

Determination of the isotopic ratio ²³⁴U/²³⁸U in liquid scintillation and environmental applications

D. Bianchi, P. Cortese, G. Dellacasa, I. Merlano

Dipartimento di Scienze e Innovazione Tecnologica

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

We describe a procedure to measure the isotopic ratio ²³⁴U/ ²³⁸U in liquid samples. This method combines an extractive technique, liquid scintillation counting with α/β discrimination and a fit procedure of α ADC spectra. Its main advantages are: high detection efficiencies for α emissions, energy sensitivity, rapid and easy preparation of the samples. This makes the technique suitable for environmental survey. We tested the method on a wide set of NBS standards, considering ²³⁵U enrichments up to 5% (the maximum value allowed for civil uses). Results on samples collected on field were validated by a comparison with ICP mass spectrometry.

Lingua originale	Inglese
pagine (da-a)	543-549
Numero di pagine	7
Rivista	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	553
Numero di pubblicazione	3
DOI	https://doi.org/10.1016/j.nima.2005.07.020
Stato di pubblicazione	Pubblicato - 21 nov 2005

Accesso al documento

10.1016/j.nima.2005.07.020

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title = "Determination of the isotopic ratio 234U/238U in liquid scintillation and environmental applications",

abstract = "We describe a procedure to measure the isotopic ratio 234U/ 238U in liquid samples. This method combines an extractive technique, liquid scintillation counting with α/β discrimination and a fit procedure of α ADC spectra. Its main advantages are: high detection efficiencies for α emissions, energy sensitivity, rapid and easy preparation of the samples. This makes the technique suitable for environmental survey. We tested the method on a wide set of NBS standards, considering 235U enrichments up to 5% (the maximum value allowed for civil uses). Results on samples collected on field were validated by a comparison with ICP mass spectrometry.",

keywords = "Environmental contamination, Liquid scintillation, Multi-parameter fit, Uranium isotopic composition",

author = "D. Bianchi and P. Cortese and G. Dellacasa and I. Merlano",

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Determination of the isotopic ratio ²³⁴U/²³⁸U in liquid scintillation and environmental applications. / Bianchi, D.; Cortese, P.; Dellacasa, G. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 553, N. 3, 21.11.2005, pag. 543-549.

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

TY - JOUR

T1 - Determination of the isotopic ratio 234U/238U in liquid scintillation and environmental applications

AU - Bianchi, D.

AU - Cortese, P.

AU - Dellacasa, G.

AU - Merlano, I.

PY - 2005/11/21

Y1 - 2005/11/21

N2 - We describe a procedure to measure the isotopic ratio 234U/ 238U in liquid samples. This method combines an extractive technique, liquid scintillation counting with α/β discrimination and a fit procedure of α ADC spectra. Its main advantages are: high detection efficiencies for α emissions, energy sensitivity, rapid and easy preparation of the samples. This makes the technique suitable for environmental survey. We tested the method on a wide set of NBS standards, considering 235U enrichments up to 5% (the maximum value allowed for civil uses). Results on samples collected on field were validated by a comparison with ICP mass spectrometry.

AB - We describe a procedure to measure the isotopic ratio 234U/ 238U in liquid samples. This method combines an extractive technique, liquid scintillation counting with α/β discrimination and a fit procedure of α ADC spectra. Its main advantages are: high detection efficiencies for α emissions, energy sensitivity, rapid and easy preparation of the samples. This makes the technique suitable for environmental survey. We tested the method on a wide set of NBS standards, considering 235U enrichments up to 5% (the maximum value allowed for civil uses). Results on samples collected on field were validated by a comparison with ICP mass spectrometry.

KW - Environmental contamination

KW - Liquid scintillation

KW - Multi-parameter fit

KW - Uranium isotopic composition

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JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

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