Calculation of depth-dependent elemental concentration with X-ray fluorescence using a layered calibration method
Depth-dependent elemental concentration can be assessed using either multiple-angle or confocal X-ray fluorescence (XRF) measurements. This work presents a different approach based on a layered calibration method. The depth-dependent elemental concentration was modeled as multiple layers of uniform...
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| Veröffentlicht in: | Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2011-05, Vol.269 (10), p.1150-1156 |
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| container_title | Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms |
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| creator | Gherase, M.R. Fleming, D.E.B. |
| description | Depth-dependent elemental concentration can be assessed using either multiple-angle or confocal X-ray fluorescence (XRF) measurements. This work presents a different approach based on a layered calibration method. The depth-dependent elemental concentration was modeled as multiple layers of uniform elemental concentrations. The unknown elemental concentration in each layer can be calculated using a single-angle XRF measurement, layered calibration data, and a priori knowledge of the concentration behavior as a function of depth. The method was verified using a commercial portable X-ray spectrometer and four-layer stacks of polyester resin discs doped with various concentrations of arsenic. This approach is particularly suitable for quantitative in vivo measurements of arsenic and selenium concentrations in the human skin since minimal ionizing radiation exposure constrains the number of XRF measurements. |
| doi_str_mv | 10.1016/j.nimb.2011.02.086 |
| format | Article |
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This approach is particularly suitable for quantitative in vivo measurements of arsenic and selenium concentrations in the human skin since minimal ionizing radiation exposure constrains the number of XRF measurements.</description><subject>Arsenic</subject><subject>Calibration</subject><subject>Depth-dependent concentration</subject><subject>Disks</subject><subject>Fluorescence</subject><subject>Mathematical models</subject><subject>Spectrometers</subject><subject>Surgical implants</subject><subject>X-ray fluorescence</subject><subject>X-rays</subject><issn>0168-583X</issn><issn>1872-9584</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp9kE9PwyAYh4nRxDn9Ap44emmlBVaaeDGL_5IlXjTZjVB4cSy0bNBq9u1lmWc58EJ4fuR9H4RuK1JWpFrcb8vB9V1Zk6oqSV0SsThDs0o0ddFywc7RLEOi4IKuL9FVSluSF6d8hvZL5fXk1ejCgIPFBnbjpsg7DAaGEYOHPlflsQ6Dzqd4Qn_cuMHrIqoDtn4KEVJ-1ICn5IYvrLBXB4hgsFbedX-ZHsZNMNfowiqf4OavztHn89PH8rVYvb-8LR9XhaaUjgXtCLMdNMLSVjWG2poZ0VJQjDfGQL5azkhDOVBRc6sbxhorNONVK5QSnM7R3enfXQz7CdIoe5eb9F4NEKYks7d20TJei4zWJ1THkFIEK3fR9SoeMnTkFnIrj37l0a8ktcx-c-jhFII8xLeDKJN2RwfGRdCjNMH9F_8FoZaGUg</recordid><startdate>20110515</startdate><enddate>20110515</enddate><creator>Gherase, M.R.</creator><creator>Fleming, D.E.B.</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20110515</creationdate><title>Calculation of depth-dependent elemental concentration with X-ray fluorescence using a layered calibration method</title><author>Gherase, M.R. ; Fleming, D.E.B.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c333t-3b04fbe78f39a7d3f24d893ea457ddef24f540735e3825fc7447f8c45198aa853</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Arsenic</topic><topic>Calibration</topic><topic>Depth-dependent concentration</topic><topic>Disks</topic><topic>Fluorescence</topic><topic>Mathematical models</topic><topic>Spectrometers</topic><topic>Surgical implants</topic><topic>X-ray fluorescence</topic><topic>X-rays</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gherase, M.R.</creatorcontrib><creatorcontrib>Fleming, D.E.B.</creatorcontrib><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Nuclear instruments & methods in physics research. 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| ispartof | Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 2011-05, Vol.269 (10), p.1150-1156 |
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| language | eng |
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| source | ScienceDirect Freedom Collection (Elsevier) |
| subjects | Arsenic Calibration Depth-dependent concentration Disks Fluorescence Mathematical models Spectrometers Surgical implants X-ray fluorescence X-rays |
| title | Calculation of depth-dependent elemental concentration with X-ray fluorescence using a layered calibration method |
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