Depth of layers in historical materials measurable by X-ray fluorescence analysis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F19%3A00331808" target="_blank" >RIV/68407700:21340/19:00331808 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.radphyschem.2018.06.047" target="_blank" >https://doi.org/10.1016/j.radphyschem.2018.06.047</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.radphyschem.2018.06.047" target="_blank" >10.1016/j.radphyschem.2018.06.047</a>
Alternative languages
Result language
angličtina
Original language name
Depth of layers in historical materials measurable by X-ray fluorescence analysis
Original language description
Energy dispersive X-ray fluorescence analysis (EDXRF, further briefly XRF) is an analytical method which is of particular relevance for valuable artefacts in investigations of cultural heritage, such as paintings and frescoes, sculptures, objects of applied art etc., since it is non-invasive and non-destructive and it can be applied in-situ with portable instruments. However, it also has some disadvantages, one of them being the fact that it uses relatively soft X-rays with limited penetration ability. This means it is essentially a "surface" method analysing effectively only relatively thin surface layers of materials. The maximum depth from which analytical signal is still measurable depends on the material composition and density, the element which should be detected, and the geometrical arrangement of the measuring instrument. The paper summarises results of Monte Carlo calculations of the thicknesses of selected material layers used in fine and applied arts objects (paint, bronze and glass) which are reachable by XRF, for two commonly used geometrical arrangements of instruments (hand-held and confocal XRF). Examples chosen for these calculations are related to real practical investigations of artefacts in our laboratory. The results show that the layers which can be effectively analysed have thicknesses of the order of tens to hundreds of micrometres. Comparing the calculated values with the measured values shows the good agreement of the used calculation model with reality, so calculations can be beneficial for both planning and interpretation of experiments.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Result continuities
Project
<a href="/en/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Center for advanced applied science</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Radiation Physics and Chemistry
ISSN
0969-806X
e-ISSN
1879-0895
Volume of the periodical
155
Issue of the periodical within the volume
Feb
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
239-243
UT code for WoS article
000454467400043
EID of the result in the Scopus database
2-s2.0-85049646318