Scattering of 7.3 keV conversion electrons from a Co-57 source covered gradually by gold absorbers of various thicknesses.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F02%3A49020170" target="_blank" >RIV/61389005:_____/02:49020170 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389005:_____/02:49033023

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Scattering of 7.3 keV conversion electrons from a Co-57 source covered gradually by gold absorbers of various thicknesses.

Popis výsledku v původním jazyce

The conversion electrons emitted with initial energy of 7.3 keV from the K-shell of 57 Fe atoms were measured with an electrostatic spectrometer set to the instrumental resolution of 7 eV. The source - Co-57 on an Al backing - was covered in successive steps by six evaporated Au layers and changes of the line shapes were recorded. The thicknesses of the Au absorbers determined by neutron activation analysis varied from 2.7 to 21 nm, i.e. up to about three times the inelastic mean free path of 7.3 keV electrons. The individual elastic and inelastic scattering events in the Al backing, Au absorbers and carbonaceous contamination overlayer were simulated by the Monte Carlo method. When the Au energy loss function derived by Yoshikawa et al. was applied inMC simulations, a reasonable agreement with measured line shapes was reached even for the thickest Au absorbers.

Název v anglickém jazyce

Scattering of 7.3 keV conversion electrons from a Co-57 source covered gradually by gold absorbers of various thicknesses.

Popis výsledku anglicky

The conversion electrons emitted with initial energy of 7.3 keV from the K-shell of 57 Fe atoms were measured with an electrostatic spectrometer set to the instrumental resolution of 7 eV. The source - Co-57 on an Al backing - was covered in successive steps by six evaporated Au layers and changes of the line shapes were recorded. The thicknesses of the Au absorbers determined by neutron activation analysis varied from 2.7 to 21 nm, i.e. up to about three times the inelastic mean free path of 7.3 keV electrons. The individual elastic and inelastic scattering events in the Al backing, Au absorbers and carbonaceous contamination overlayer were simulated by the Monte Carlo method. When the Au energy loss function derived by Yoshikawa et al. was applied inMC simulations, a reasonable agreement with measured line shapes was reached even for the thickest Au absorbers.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

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

Název periodika

Nuclear Instruments and Methods in Physics Research Section Research B-Beam Interactions with Materials and Atoms

ISSN

0168-583X

e-ISSN

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Svazek periodika

194

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

112-122

Kód UT WoS článku

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EID výsledku v databázi Scopus

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