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

Department of Science and Technological Innovation

Research output: Contribution to journal › Article › 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.

Original language	English
Pages (from-to)	543-549
Number of pages	7
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	553
Issue number	3
DOIs	https://doi.org/10.1016/j.nima.2005.07.020
Publication status	Published - 21 Nov 2005

Keywords

Environmental contamination
Liquid scintillation
Multi-parameter fit
Uranium isotopic composition

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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",

year = "2005",

month = nov,

day = "21",

doi = "10.1016/j.nima.2005.07.020",

language = "English",

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pages = "543--549",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

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publisher = "Elsevier BV",

number = "3",

}

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, No. 3, 21.11.2005, p. 543-549.

Research output: Contribution to journal › Article › 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

UR - https://www.scopus.com/pages/publications/27744458134

U2 - 10.1016/j.nima.2005.07.020

DO - 10.1016/j.nima.2005.07.020

M3 - Article

SN - 0168-9002

VL - 553

SP - 543

EP - 549

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

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

IS - 3

ER -

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

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