Confocal XRF imaging for determination of arsenic distribution in a sample of historic plaster

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F22%3A00360950" target="_blank" >RIV/68407700:21340/22:00360950 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.radphyschem.2022.110201" target="_blank" >https://doi.org/10.1016/j.radphyschem.2022.110201</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.radphyschem.2022.110201" target="_blank" >10.1016/j.radphyschem.2022.110201</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Confocal XRF imaging for determination of arsenic distribution in a sample of historic plaster

Popis výsledku v původním jazyce

This paper describes the use of X-ray fluorescence (XRF) scanning, XRF microanalysis, and confocal XRF for identification of toxic elements, especially arsenic, in a sample taken from a historic wall of the rectory building in Potstat (Prerov district, Czech Republic). We focused our attention mainly on the confocal XRF imaging, which can visualize non-destructively a cross-section of a selected part of the sample. Since the images of X-ray intensities are disturbed by the X-ray absorption in a sample, a method reducing this effect was proposed and applied for the determination of the arsenic depth distribution. This method comprises an experimental determination of attenuation coefficients for the excitation beam and the arsenic characteristic X-rays as well. These coefficients are derived from the exponential decrease of scattered radiation intensities in energy regions corresponding to the excitation X-ray energies and energies of scattered X-rays close to the arsenic K alpha line, respectively. This correction improved the image showing the depth distribution of arsenic in the sample.

Název v anglickém jazyce

Confocal XRF imaging for determination of arsenic distribution in a sample of historic plaster

Popis výsledku anglicky

This paper describes the use of X-ray fluorescence (XRF) scanning, XRF microanalysis, and confocal XRF for identification of toxic elements, especially arsenic, in a sample taken from a historic wall of the rectory building in Potstat (Prerov district, Czech Republic). We focused our attention mainly on the confocal XRF imaging, which can visualize non-destructively a cross-section of a selected part of the sample. Since the images of X-ray intensities are disturbed by the X-ray absorption in a sample, a method reducing this effect was proposed and applied for the determination of the arsenic depth distribution. This method comprises an experimental determination of attenuation coefficients for the excitation beam and the arsenic characteristic X-rays as well. These coefficients are derived from the exponential decrease of scattered radiation intensities in energy regions corresponding to the excitation X-ray energies and energies of scattered X-rays close to the arsenic K alpha line, respectively. This correction improved the image showing the depth distribution of arsenic in the sample.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

<a href="/cs/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Centrum pokročilých aplikovaných přírodních věd</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Radiation Physics and Chemistry

ISSN

0969-806X

e-ISSN

1879-0895

Svazek periodika

200

Číslo periodika v rámci svazku

110201

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

—

Kód UT WoS článku

000878090900008

EID výsledku v databázi Scopus

2-s2.0-85129570587