Evaluation of laser-induced breakdown spectroscopy analysis potential for addressing radiological threats from a distance

Gaona, I.; Serrano, J.; Moros, Javier; Laserna, J.J.

doi:10.1016/j.sab.2014.04.003

Cited by 34 publications

(7 citation statements)

References 29 publications

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“…Hence, verification of the glass composition is an important step which ensures the quality of the product 11–13 . The present work is also relevant to nuclear forensics where few of the authors highlighted the use of laser‐induced breakdown spectroscopy (LIBS) for the detection of light as well as rare earth elements of the periodic table 14–16 . In addition to this, LIBS can be employed, for the in situ screening of actinides (U, Th, Pu, and so on) and radionuclides (Co, Sr, Cs, and so on) present in the nuclear materials before going for the detailed investigations of isotopic measurements.…”

Section: Introductionmentioning

confidence: 99%

Plasma spectroscopy + chemometrics: An ideal approach for the spectrochemical analysis of iron phosphate glass samples

Devangad

Unnikrishnan

Yogesha

et al. 2020

Journal of Chemometrics

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The penultimate aim of all analytical techniques is to provide best quantitative information with high sensitivity and accuracy. Such techniques then can be ideal to estimate the concentration of different species in a sample or to measure the surface concentration and so on. The preliminary step involved in quantitative analysis is evaluation of the system response for a given amount of the analyte under investigation. Different methodologies are proposed and executed for the above mentioned purpose. In this work, we have demonstrated the performance of chemometric methods to study the atomic emissions from simulated nuclear waste glasses. Five samples of iron‐phosphate glasses were synthesized by doping Cr, Sr, and Ti at various concentrations. The spectra recorded using laser‐induced breakdown spectroscopy (LIBS) system were analyzed using principal component analysis (PCA), partial least square‐discriminant analysis (PLS‐DA), and support vector machines (SVM) for the classification. As compared with the PLS‐DA, SVM provided better results for classification with accuracy of 100% on both calibration and validation sets, respectively. The quantitative analysis of glass samples is carried out using partial least square regression (PLSR) and support vector regression (SVR). The root mean squared error of prediction (RMSEP) is found to be 0.16, 0.20, and 0.08 (wt%) for Cr, Sr, and Ti using PLSR. The detailed investigation elucidates the advantages of chemometrics in handling the complex LIBS spectrum of glass samples and their significance in process control of nuclear waste, nuclear forensics, and so on.

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Section: Introductionmentioning

confidence: 99%

Plasma spectroscopy + chemometrics: An ideal approach for the spectrochemical analysis of iron phosphate glass samples

Devangad

Unnikrishnan

Yogesha

et al. 2020

Journal of Chemometrics

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“…Plutonium is an important actinide element, used in many applications such as nuclear weapons and nuclear energy. The detection of Pu in various materials and characterization of its isotopic content are needed in nuclear forensics, analysis of nuclear fuels, diagnosis of nuclear reactors, and many other applications [1][2][3][4][5]. Specifically, Pu isotopes can be accurately characterized with laser absorption techniques in combination with laser ablation for which knowledge of atomic properties such as hyperfine structure and isotope shift is needed [6].…”

Section: Introductionmentioning

confidence: 99%

Configuration–Interaction Perturbation Theory Calculations of Pu II

Savukov

2020

Atoms

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Configuration–interaction perturbation theory (CI–PT) is applied to calculations of low-energy states of Pu II. This ion is quite challenging due to a large number of possible determinants arising from seven valence electrons and strong relativistic effects. The CI–PT calculations agree with experiments for the energies and g-factors for many low-energy states that allowed positive identification of the theoretical levels. Isotope shifts were also used to aid in identification, and, in case of the odd states, fitting with three independent parameters was used to match theoretical isotope shifts to the experimental values with good accuracy. The CI–PT approach tested here on the Pu II ion can be generally used to calculate properties of many complex atoms, including U I that can find application in fundamental and applied science.

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“…Several studies have demonstrated the ability of LIBS to detect nuclear material in matrices relevant to the nuclear community, such as geological deposits [2,3], uranium ores [4,5], and surrogate nuclear debris [6]. Other studies validated the use of LIBS in nuclear safeguard applications, including analysis of IAEAswipe samples [7], nuclear reprocessing plant activities [8], and standoff detection of radiological threat materials [9]. Recently, Harilal et al summarized the advancements in LIBS and other optical techniques to conduct isotopic analysis in laser-produced plasmas (LPPs) [10].…”

Section: Introductionmentioning

confidence: 99%

Quantitative Analysis of Cerium-Gallium Alloys Using a Hand-Held Laser Induced Breakdown Spectroscopy Device

Rao

Cook

Hall

et al. 2019

Atoms

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A hand-held laser-induced breakdown spectroscopy device was used to acquire spectral emission data from laser-induced plasmas created on the surface of cerium-gallium alloy samples with Ga concentrations ranging from 0–3 weight percent. Ionic and neutral emission lines of the two constituent elements were then extracted and used to generate calibration curves relating the emission line intensity ratios to the gallium concentration of the alloy. The Ga I 287.4-nm emission line was determined to be superior for the purposes of Ga detection and concentration determination. A limit of detection below 0.25% was achieved using a multivariate regression model of the Ga I 287.4-nm line ratio versus two separate Ce II emission lines. This LOD is considered a conservative estimation of the technique’s capability given the type of the calibration samples available and the low power (5 mJ per 1-ns pulse) and resolving power ( λ / Δ λ = 4000) of this hand-held device. Nonetheless, the utility of the technique is demonstrated via a detailed mapping analysis of the surface Ga distribution of a Ce-Ga sample, which reveals significant heterogeneity resulting from the sample production process.

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Evaluation of laser-induced breakdown spectroscopy analysis potential for addressing radiological threats from a distance

Cited by 34 publications

References 29 publications

Plasma spectroscopy + chemometrics: An ideal approach for the spectrochemical analysis of iron phosphate glass samples

Plasma spectroscopy + chemometrics: An ideal approach for the spectrochemical analysis of iron phosphate glass samples

Configuration–Interaction Perturbation Theory Calculations of Pu II

Quantitative Analysis of Cerium-Gallium Alloys Using a Hand-Held Laser Induced Breakdown Spectroscopy Device

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