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Linear Energy Transfer (LET) dependence of graphene oxide dosimeter for different ionizing radiations
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SYSNO ASEP 0562823 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Linear Energy Transfer (LET) dependence of graphene oxide dosimeter for different ionizing radiations Author(s) Torrisi, L. (IT)
Silipigni, L. (IT)
Cutroneo, Mariapompea (UJF-V) ORCID, RID, SAI
Proverbio, E. (IT)
Torrisi, A. (IT)Number of authors 5 Article number 111240 Source Title Vacuum. - : Elsevier - ISSN 0042-207X
Roč. 203, SEP (2022)Number of pages 8 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords Graphene oxide dosimetry ; Linear energy transfer (LET) ; XPS spectroscopy ; EDX analysis ; Raman spectroscopy OECD category Nuclear physics R&D Projects EF16_013/0001812 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA22-10536S GA ČR - Czech Science Foundation (CSF) Research Infrastructure CANAM II - 90056 - Ústav jaderné fyziky AV ČR, v. v. i. Method of publishing Limited access Institutional support UJF-V - RVO:61389005 UT WOS 000865610800001 EID SCOPUS 85131736228 DOI 10.1016/j.vacuum.2022.111240 Annotation The graphene oxide (GO) reduction by ionizing radiation is proportional to the absorbed dose due to the energy release which produces ionizations, deexcitations, chemical bonding breaking, radical formation and recombination, oxygen functional groups and water desorption. Thanks to this, GO can be employed as a dosimeter whose dose can be measured using different analysis techniques, such as Raman spectroscopy, X-ray diffraction (XRD) and Energy Dispersive X-ray (EDX) analysis based on the characteristic X-ray emission, X-ray photoelectron spectroscopy (XPS). To evaluate the GO reduction as a function of the Linear Energy Transfer (LET) of the used radiation, measurements have been performed with XPS and EDX to deduce the C/O atomic ratio versus the X-rays, electron and ion beam energy loss. Results indicate that a linear dependence on LET occurs, as will be presented and discussed. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2023 Electronic address https://doi.org/10.1016/j.vacuum.2022.111240
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