Theoretical study of depth profiling with gamma-and X-ray spectrometry based on measurements of intensity ratios
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F17%3A00306449" target="_blank" >RIV/68407700:21340/17:00306449 - isvavai.cz</a>
Výsledek na webu
<a href="http://authors.elsevier.com/sd/article/S0969806X17300701" target="_blank" >http://authors.elsevier.com/sd/article/S0969806X17300701</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.radphyschem.2017.01.014" target="_blank" >10.1016/j.radphyschem.2017.01.014</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Theoretical study of depth profiling with gamma-and X-ray spectrometry based on measurements of intensity ratios
Popis výsledku v původním jazyce
This article describes the method for the estimation of depth distribution of radionuclides in a material with gamma-ray spectrometry, and the identification of a layered structure of a material with X-ray fluorescence analysis. This method is based on the measurement of a ratio of two gamma or X-ray lines of a radionuclide or a chemical element, respectively. Its principle consists in different attenuation coefficient for these two lines in a measured material. The main aim of this investigation was to show how the detected ratio of these two lines depends on depth distribution of an analyte and mainly how this ratio depends on density and chemical composition of measured materials. Several different calculation arrangements were made and a lot of Monte Carlo simulation with the code MCNP – Monte Carlo N Particle (Briesmeister, 2000) was performed to answer these questions. For X-ray spectrometry, the calculated Kα/Kβ diagrams were found to be almost independent upon matrix density and composition. Thanks to this phenomenon it would be possible to draw only one Kα/Kβ diagram for an element whose depth distribution is examined.
Název v anglickém jazyce
Theoretical study of depth profiling with gamma-and X-ray spectrometry based on measurements of intensity ratios
Popis výsledku anglicky
This article describes the method for the estimation of depth distribution of radionuclides in a material with gamma-ray spectrometry, and the identification of a layered structure of a material with X-ray fluorescence analysis. This method is based on the measurement of a ratio of two gamma or X-ray lines of a radionuclide or a chemical element, respectively. Its principle consists in different attenuation coefficient for these two lines in a measured material. The main aim of this investigation was to show how the detected ratio of these two lines depends on depth distribution of an analyte and mainly how this ratio depends on density and chemical composition of measured materials. Several different calculation arrangements were made and a lot of Monte Carlo simulation with the code MCNP – Monte Carlo N Particle (Briesmeister, 2000) was performed to answer these questions. For X-ray spectrometry, the calculated Kα/Kβ diagrams were found to be almost independent upon matrix density and composition. Thanks to this phenomenon it would be possible to draw only one Kα/Kβ diagram for an element whose depth distribution is examined.
Klasifikace
Druh
J<sub>imp</sub> - 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)
Návaznosti výsledku
Projekt
<a href="/cs/project/DF13P01OVV010" target="_blank" >DF13P01OVV010: Historické technologie a moderní metody průzkumu. Interpretační možnosti specializovaných metod průzkumu děl středověkého umění s využitím inovativních technologií.</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2017
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Radiation Physics and Chemistry
ISSN
0969-806X
e-ISSN
—
Svazek periodika
140
Číslo periodika v rámci svazku
November
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
6
Strana od-do
487-492
Kód UT WoS článku
000411533500093
EID výsledku v databázi Scopus
2-s2.0-85009968747