The stopping power and energy straggling of light ions in graphene oxide foils

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F17%3A00479632" target="_blank" >RIV/61389005:_____/17:00479632 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/17:43913393 RIV/44555601:13440/17:43892902

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.nimb.2017.02.069" target="_blank" >http://dx.doi.org/10.1016/j.nimb.2017.02.069</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nimb.2017.02.069" target="_blank" >10.1016/j.nimb.2017.02.069</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The stopping power and energy straggling of light ions in graphene oxide foils

Popis výsledku v původním jazyce

Energy-loss and straggling experiments were performed using 2-4 MeV H-1(+) and 7.4-9.0 MeV He-4(2+) ions in graphene oxide foils by the transmission technique. The thickness of the graphene oxide foils was determined using a detailed image analysis of a graphene oxide cut, which was used to refine the graphene oxide density. The density was determined by the standard technique of micro-balance weighing. The stoichiometry of the graphene oxide foils before the irradiation was determined by Rutherford backscattering spectrometry (RBS) and elastic recoil detection analysis (ERDA) using 2 and 2.5 MeV He-4(+). The measured energy stopping powers for hydrogen and helium ions in graphene oxide were compared with the predictions obtained from the SRIM-2013 code. The energy straggling was compared with that calculated using Bohr's, Bethe-Livingston and Yang predictions. nnThe results show that the stopping power of graphene oxide foils irradiated by both ion species decreases with increasing energies, the differences between the measured and predicted values being below 3.8%. The energy straggling determined in our experiment is higher than Bohr's and Bethe-Livingston predicted values, the predictions by Yang are in better agreement with our experiment.

Název v anglickém jazyce

The stopping power and energy straggling of light ions in graphene oxide foils

Popis výsledku anglicky

Energy-loss and straggling experiments were performed using 2-4 MeV H-1(+) and 7.4-9.0 MeV He-4(2+) ions in graphene oxide foils by the transmission technique. The thickness of the graphene oxide foils was determined using a detailed image analysis of a graphene oxide cut, which was used to refine the graphene oxide density. The density was determined by the standard technique of micro-balance weighing. The stoichiometry of the graphene oxide foils before the irradiation was determined by Rutherford backscattering spectrometry (RBS) and elastic recoil detection analysis (ERDA) using 2 and 2.5 MeV He-4(+). The measured energy stopping powers for hydrogen and helium ions in graphene oxide were compared with the predictions obtained from the SRIM-2013 code. The energy straggling was compared with that calculated using Bohr's, Bethe-Livingston and Yang predictions. nnThe results show that the stopping power of graphene oxide foils irradiated by both ion species decreases with increasing energies, the differences between the measured and predicted values being below 3.8%. The energy straggling determined in our experiment is higher than Bohr's and Bethe-Livingston predicted values, the predictions by Yang are in better agreement with our experiment.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

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

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Nuclear Instruments & Methods in Physics Research Section B

ISSN

0168-583X

e-ISSN

—

Svazek periodika

406

Číslo periodika v rámci svazku

SEP

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

173-178

Kód UT WoS článku

000409152800037

EID výsledku v databázi Scopus

2-s2.0-85014521933