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Verfasst von:Becker, Anna [VerfasserIn]   i
 Jäkel, Oliver [VerfasserIn]   i
 Vedelago, José [VerfasserIn]   i
Titel:Intensity threshold variation method in the post-irradiation analysis of Fluorescent Nuclear Track Detectors for neutron dosimetry
Verf.angabe:Anna Becker, Oliver Jäkel, José Vedelago
E-Jahr:2022
Jahr:4 October 2022
Umfang:7 S.
Fussnoten:Online verfügbar 28 May 2022, Artikelversion 4 October 2022 ; Gesehen am 20.02.2023
Titel Quelle:Enthalten in: Radiation physics and chemistry
Ort Quelle:Oxford [u.a.] : Pergamon Press, 1993
Jahr Quelle:2022
Band/Heft Quelle:200(2022) vom: Nov., Artikel-ID 110257, Seite 1-7
ISSN Quelle:1879-0895
Abstract:Fluorescent Nuclear Track Detectors (FNTDs) are biocompatible passive detectors and a promising tool for neutron dosimetry applications, such as in-phantom measurements within the scope of ion therapy. Sensitivity differences between individual detectors however complicate the post-irradiation analysis process, making detector comparability and consequently dose assessment challenging. Therefore, improvements in the analysis method are needed to account for the observed sensitivity effects. In this work, the FNTD technology was implemented for neutron dosimetry using a standard Am-241/Be neutron source for irradiation and a confocal laser scanning microscope for detector readout. Acquired images were evaluated in terms of the track number of recoil proton signals behind a polyethylene converter, which was found to be related to dose. This study presents a new methodology for the post-irradiation data analysis, based on the variation of the intensity threshold parameter during the proton track identification process. The procedure was tested within individual detectors in stepwise irradiation experiments, validating the consistency of the proposed methodology. The application of the method to an extended number of FNTDs was able to account for sensitivity impacts and enabled comparability between the different detectors. A calibration curve based on the observed linear relation between dose and the number of identify tracks was obtained, that can be used for future implementation of FNTDs in neutron dosimetry.
DOI:doi:10.1016/j.radphyschem.2022.110257
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: https://doi.org/10.1016/j.radphyschem.2022.110257
 Volltext: https://www.sciencedirect.com/science/article/pii/S0969806X22002997
 DOI: https://doi.org/10.1016/j.radphyschem.2022.110257
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:Confocal laser-scanning microscopy
 Detector sensitivity
 Fluorescent nuclear track detectors
 Neutron dosimetry
 Recoil track counting
 Threshold optimization
K10plus-PPN:1837095957
Verknüpfungen:→ Zeitschrift

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