Evolution of chemical species during electrodeposition of uranium for alpha spectrometry by the Hallstadius method

Beesley, Angela M.; Crespo, M.T.; Weiher, Norbert; Tsapatsaris, Nikolaos; Cózar, J.S.; Esparza, H.; Méndez, Carlos; Hill, Patrick; Schroeder, Sven L. M.; Montero-Cabrera, M. E.

doi:10.1016/j.apradiso.2009.03.031

Cited by 22 publications

(11 citation statements)

References 70 publications

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“…A different option is X-ray photoelectron spectroscopy (XPS), in which the elemental composition, the empirical formula, and the electronic configuration of the elements found on the surface of the sample (10 nm) are measured, in which synchrotron light may or may not be used [19].…”

Section: Resultsmentioning

confidence: 99%

Transport and concentration of uranium isotopes in the Laguna del Cuervo, Chihuahua, Mexico

Pérez-Reyes

Cabral-Lares

Méndez-García³

et al. 2022

Supl. Rev. Mex. Fis.

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In Chihuahua, an important source of environmental radioactivity is found in the Sierra Peña Blanca, in the center of the state. The site comprises about 70% of uranium reserves in Mexico. The uranium of Peña Blanca was explored and partially exploited in the '80s. Due to the closure of operations, the extracted and unprocessed ore (hundreds of tons) was confined to rocky stacks, exposed to weathering. Subject to leaching, this uranium is transported from the mountains to Laguna del Cuervo. The mineral exposed in the repository and the uranium transport by surface water and recent sediments must be studied, to assess the effects on the environment, with radiometric and materials science techniques in conventional laboratories and synchrotron light. This work presents the study of sediment and pore water samples at various points along the lagoon, and the values of the activity ratio of the 234U/238U isotopes and the sediment-water distribution coefficient of these isotopes, obtained by applying uranium liquid scintillation alpha spectrometry, gamma-ray spectrometry, scanning electron microscopy and X-ray diffraction methods.

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Section: Resultsmentioning

confidence: 99%

Transport and concentration of uranium isotopes in the Laguna del Cuervo, Chihuahua, Mexico

Pérez-Reyes

Cabral-Lares

Méndez-García³

et al. 2022

Supl. Rev. Mex. Fis.

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“…The source matrix was assumed to be thin and uniform with known elemental compositions (O(12.5%), Si(0.9%), U(1.7%), Pt(3.5%), Ni(4.6%), Fe(41.4%), Mn(0.7%), Cr(12.6%) and C(22.1%)) (Beesley, 2009), whereas the activity of uranium isotopes ( 238 U, 234 U, and 232 U) incorporated in the source could vary.…”

Section: Monte Carlo Simulationmentioning

confidence: 99%

“…After demonstrating the capability of the network to predict the activity ratio, the real library was produced by a set of the uranium sources. They have to be prepared by electro deposition which is the technique used for the source preparation (Talvitie, 1972;Hallstadius, 1984;Beesley et al, 2009;Méndez et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the suitability of neural network method for prediction of uranium activity ratio in environmental alpha spectra

Einian

Aghamiri

Ghaderi

2015

Applied Radiation and Isotopes

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“…The deposition time is one of the significant parameters to obtain an electrodeposition layer of radionuclides with high quality [84][85][86][87]. In many research studies, longer deposition time leads to the higher electrodeposition yield Fig.…”

Section: Deposition Timementioning

confidence: 99%

Preparation and characterization of electrodeposited layers as alpha sources for alpha-particle spectrometry

2020

J Radioanal Nucl Chem

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In various methods to determine alpha-emitting radionuclides in matrices, alpha-particle spectrometry with alpha-emitting sources prepared by the electrodeposition has been widely used. Although there are several good review papers on alphaparticle spectrometry and preparation of electrodeposited alpha-emitting sources, the mechanism of analysis procedure and characterizations of alpha-emitting sources have not been reported well. These untouched subjects by other review papers are very significant to improve the analysis procedure. This review focuses on the mechanism of the electrodeposition of alpha-emitting radionuclides on the stainless steel disc, factors for the preparation of electrodeposited alpha-emitting layers, and various characterization methods.

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Evolution of chemical species during electrodeposition of uranium for alpha spectrometry by the Hallstadius method

Cited by 22 publications

References 70 publications

Transport and concentration of uranium isotopes in the Laguna del Cuervo, Chihuahua, Mexico

Transport and concentration of uranium isotopes in the Laguna del Cuervo, Chihuahua, Mexico

Evaluation of the suitability of neural network method for prediction of uranium activity ratio in environmental alpha spectra

Preparation and characterization of electrodeposited layers as alpha sources for alpha-particle spectrometry

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