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Corte, F. De; Lierde, S. Van

doi:10.1023/a:1010634326208

Cited by 17 publications

(4 citation statements)

References 12 publications

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“…Based on the k 0 concept, an Ik 0 , that is, interference k 0 , was proposed for each fission interference case . Interferences from 235 U fission were corrected for by both relative and Ik 0 methods developed by the CIAE NAA laboratory and combined into ADVNAA software. , The interference factors (IFs) were determined in this work (Supporting Information Table S2).…”

Section: Resultsmentioning

confidence: 99%

“…13,17 Based on the k 0 concept, 32 an Ik 0 , that is, interference k 0 , was proposed for each fission interference case. 33 Sample CE5C0800YJFM003 with CRMs for short-time INAA were irradiated in the MNSR with a φ th (thermal neutron fluence rate) value of 9.0 × 10 11 cm −2 •s −1 . The samples were irradiated for 300 s and counted twice at decay times of 150 s and 8 h, respectively.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Instrumental Neutron Activation Analysis of Chang’E-5 Lunar Regolith Samples

et al. 2022

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The Chang’E-5 (CE-5) lunar samples were analyzed nondestructively for more than 40 elements by instrumental neutron activation analysis (INAA) with a strict quality assurance and quality control. Based on the INAA results, some new observations and discoveries were made. Major, minor, and trace elements in CE-5 are very different from those of the Earth and Apollo lunar samples. The rare earth element (REE) pattern indicated that the CE-5 lunar samples are mare basalts with a clear negative anomaly in Eu. Element correlations are a very interesting discovery; for example, the ratios of Ba/La and FeO/MnO in CE-5 are almost identical to those of the Apollo lunar samples. These observations and discoveries will enrich the understanding of the formation and evolution of the Moon.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Instrumental Neutron Activation Analysis of Chang’E-5 Lunar Regolith Samples

et al. 2022

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“…Thus, correcting the nuclear product or nuclear interference experimentally is not possible. For example, the 235 U(n,f ) fission products, which contribute to 95 Zr, 95 Nb, 97m Nb, 99 Mo, 99m Tc, 139 Ba, 140 La, 141 Ce, and 147 Nd isotopes, must be corrected [24,30], but their nuclear interference could not be corrected if the U concentration were unknown. In another example, the 26 Mg(n,γ) 27 Mg reaction competes with the 27 Al(n,p) 27 Mg via nuclear isotope interference reaction (threshold reaction with fast neutrons); hence, the amount of Al must be determined to establish the accurate concentration of Mg [19,27,31].…”

Section: Supplementary Materialsmentioning

confidence: 99%

Application of k0-INAA Method in Preliminary Characterization of KRISS Urban Airborne Particulate Matter Certified Reference Material

et al. 2020

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We report comprehensive elemental composition studies on the average urban airborne particulate matters (PMs) collected in the Greater Seoul area, Korea, in 2019 to identify regional and chronological characteristics of the sample as a candidate for certified reference material (CRM), using k0-based single comparator instrumental neutron activation analysis (k0-INAA). The method was successfully validated by comparing the analysis result of a similar matrix CRM (SRM 1648a urban particulate matter) of National Institute of Standards and Technology, USA, with corresponding certified values. The same methodology was applied to determine various elements in candidate environmental materials for future CRM development, including the urban PMs and incineration ashes, to investigate the possibility of using k0-INAA for certification of relevant reference materials. In total, 46 elements in the urban PM sample were analyzed and their concentration levels were compared with the urban PMs collected in the 1970s in St. Louis, USA. Urban PMs of Korea Research Institute of Standards and Science in 2019 contain significantly lower levels of hazardous elements, such as As, Cd, Cr, Hg, and Pb, as compared to those of the 1970s, which can be attributed to the reduced air pollution by environmental regulation and technological innovation. The potential major source of urban airborne PMs was also discussed.

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“…The developed data- A few compilations of the k 0 data can be found in the literature [1,17]. Some data were published stepwise in a number of consecutive compilations, with several extensions and updates over the course of several years [8][9][10][11][12][13][14][15][16]. These partial and fragmentary datasets were assembled [17] and inserted into the tables of the present database.…”

Section: Essence Of the Projectmentioning

confidence: 99%

Compilation of k0 and related data for NAA in the form of electronic database (IUPAC Technical Report)

Kolotov¹,

Corte²

2004

Pure and Applied Chemistry

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This report describes the principles underlying a comprehensive electronic database that contains data essential for calculation of analytical results from neutron-activation analysis (NAA) and that is available through IUPAC. The method used is a comparator method called the k0 method, where k0 is a dimensionless factor which is experimentally measured with high accuracy for more than 130 isotopes and which makes use of the gamma spectroscopic line for an analyte isotope relative to a gold comparator. The database contains recommended values for k0 and other relevant nuclear data.

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Untitled

Cited by 17 publications

References 12 publications

Instrumental Neutron Activation Analysis of Chang’E-5 Lunar Regolith Samples

Instrumental Neutron Activation Analysis of Chang’E-5 Lunar Regolith Samples

Application of k0-INAA Method in Preliminary Characterization of KRISS Urban Airborne Particulate Matter Certified Reference Material

Compilation of k0 and related data for NAA in the form of electronic database (IUPAC Technical Report)

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