Feasibility study on evaluating uranium enrichment with the High Resolution Gamma-Ray Spectrometry and X-ray fluorescence

Kim, Sunghwan; Song, Ji-Yeon; Jeon, Juyoung; Choi, Jung-Youn; Seo, Hana

doi:10.1016/j.apradiso.2019.03.031

Cited by 6 publications

(3 citation statements)

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“…The μ-XRF spectrometry technique can be used not only for imaging but also for the screening of microscopic sample deposits . Kim et al 26 evaluated a prototype monochromatic μ-XRF (MMXRF) spectrometry instrument equipped with a doubly curved crystal (DCC) and SDD for the fast estimation of U content in swipes. Results obtained by combining the MMXRF spectrometry data with those obtained by γ-spectrometry overestimated the 235 U enrichment slightly (2–12%).…”

Section: Chemical Imaging Using X-ray Techniquesmentioning

confidence: 99%

2020 atomic spectrometry update – a review of advances in X-ray fluorescence spectrometry and its special applications

Vanhoof

Bacon

Fittschen

et al. 2020

J. Anal. At. Spectrom.

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Section: Chemical Imaging Using X-ray Techniquesmentioning

confidence: 99%

2020 atomic spectrometry update – a review of advances in X-ray fluorescence spectrometry and its special applications

Vanhoof

Bacon

Fittschen

et al. 2020

J. Anal. At. Spectrom.

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“…Recently, the uranium enrichment of the environmental sample was analyzed to verify the declared information for nuclear safeguards. High-resolution gamma spectrometry (HRGS) and monochromatic micro-X-ray fluorescence (MMXRF) can analyze the sample with a short detection time and high reproducibility [7]. The types of uranium used to feed a uranium enrichment cascade include natural, recycled, depleted, natural-equivalent, and enriched uranium.…”

Section: Introductionmentioning

confidence: 99%

Estimation and Validation of Enrichment Percentage of U3O8 Samples using Innovative Mathematical Formula and Python Code

El-Tayebany

Elbegawy²,

El‐Mongy³

2022

JAP

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Depending on the enrichment levels, enriched uranium can be used for many purposes, such as the fabrication of fresh fuels for power and research reactors. Furthermore, under the 1968 Treaty on the Non-Proliferation (NPT), the states, specifically non-nuclear-weapon states of comprehensive safeguards agreements, should be inspected and verified to prove "peaceful use" commitments. Consequently, verifying the enrichment process and the percentage is considered an essential element for investigation purposes. The primary motivation of this paper is to estimate and validate U3O8 samples enrichment percentage using innovative formula. The enrichment calculations were conducted using certified safeguarded nuclear materials with varying low enriched uranium (LEU) ratios, both experimentally with a HpGe detector and computationally with Python 3.10 code. The results prove precise and acceptable values compared to the certified declared enrichment percentage (from depleted 0.32% - 4.5%) with differences in the range of 1⁓ 3.8%. The new formula used in this work applies to national, regional, and international safeguards inspection targets.

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“…For establishing nuclear safeguards and for nuclear forensic to prevent illicit trafficking on nuclear materials, some previous studies discussed the use of high resolution gamma spectrometry to determine the total U content, isotopic content, and the enrichment of 235 U to date the time of purification and/or enrichment of uranium samples using some commercial analytical software codes [4]. Other studies developed useful methods to measure the uranium enrichment of samples with 238 U activity difficult to be measured as a result of lack of secular equilibrium or high enrichment [5]. Determination of uranium in different matrices by alpha spectrometry requires several radiochemical procedures to separate these radionuclides from the matrix [6].…”

Section: Introductionmentioning

confidence: 99%

Determination of Uranium Isotopic Ratios by Alpha Spectrometry for Nuclear Materials Control Purposes

Abouzeid¹,

Kandil

Khedr

et al. 2020

Arab Journal of Nuclear Sciences and Applications

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Uranium is the most common element in the nuclear fuel cycle. Different techniques have been used for analyzing the isotopic composition of uranium. Precise determination of uranium isotopic ratios for an efficient control of nuclear material was carried out through the modification of the used chromatographic method of uranium. Alpha spectrometry was utilized to identify different types of natural, depleted and enriched samples for safeguard purposes. Uranium element was extracted from other interfering radionuclides, purified, electrodeposited on a stainless-steel disc, and measured using alpha-spectrometer, then isotopic ratios were calculated. For comparison purposes, the samples were also measured using a hyper pure germanium (HPGe) spectrometer and the uranium isotopic ratios were obtained. The results obtained by both techniques were in agreement within difference ranged from-8.7 to 12%. It was concluded that alpha spectrometric measurements of uranium isotopes preceded by efficient radiochemical separation using extraction chromatography is a fast and reliable technique for safeguard purposes.

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Feasibility study on evaluating uranium enrichment with the High Resolution Gamma-Ray Spectrometry and X-ray fluorescence

Cited by 6 publications

References 1 publication

2020 atomic spectrometry update – a review of advances in X-ray fluorescence spectrometry and its special applications

2020 atomic spectrometry update – a review of advances in X-ray fluorescence spectrometry and its special applications

Estimation and Validation of Enrichment Percentage of U3O8 Samples using Innovative Mathematical Formula and Python Code

Determination of Uranium Isotopic Ratios by Alpha Spectrometry for Nuclear Materials Control Purposes

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