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dc.contributor.author
Saint Martin, María Laura Gisela
dc.contributor.author
Portu, Agustina Mariana
dc.contributor.author
Ibarra, M. L.
dc.contributor.author
Alurralde, Martín Alejo
dc.date.available
2022-09-23T12:23:29Z
dc.date.issued
2020-08
dc.identifier.citation
Saint Martin, María Laura Gisela; Portu, Agustina Mariana; Ibarra, M. L.; Alurralde, Martín Alejo; UV-C radiation effect on nuclear tracks of different ions in polycarbonate; Pergamon-Elsevier Science Ltd; Radiation Physics and Chemistry (Oxford); 173; 8-2020; 108936-108942
dc.identifier.issn
0969-806X
dc.identifier.uri
http://hdl.handle.net/11336/170156
dc.description.abstract
The neutron autoradiography technique was developed in our laboratory using polycarbonate nuclear track detectors, to qualitatively and quantitatively analyze boron distribution and concentration in biological samples from experimental models coming from Boron Neutron Capture Therapy research. Spatial resolution was later improved by generating an imprint of the biological sample (e.g. cellular culture, tissue sections) on the detector surface, which can be microscopically observed together with nuclear tracks originated by 10B capture products. This methodology was developed for polycarbonate detectors and involves UV-C light irradiation of the sample-detector assembly. The chemical etching process of the detector, usually performed to enlarge the nuclear tracks, also “reveals” the imprint of the sample. In this work we report a fading effect in nuclear tracks due to UV-C exposure. Significant differences in track density produced by alpha ions and Li recoils coming from the neutron capture reaction, 10B(n,α)7Li, were found between exposed and unexposed to UV-C light (254 nm wavelength) polycarbonate foils. A decreasing relation between track density and exposure time to UV-C radiation could also be observed for these ions. To analyze the effect produced by UV-C radiation on nuclear tracks of different ions, polycarbonate detectors irradiated with 7Li, 12C, 16O, 32S, 127I, 197Au beams and air degraded alpha particles from a241Am source were also studied. A wavelength dependent photodegradation mechanism affecting the polycarbonate detector would be altering the nuclear tracks development in different ways, according to ion damage characteristics.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pergamon-Elsevier Science Ltd
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BNC
dc.subject
NUCLEAR TRACKS
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PHOTODEGRADATION
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POLYCARBONATE
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UV-C RADIATION
dc.subject.classification
Física Atómica, Molecular y Química
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
UV-C radiation effect on nuclear tracks of different ions in polycarbonate
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-22T15:04:43Z
dc.journal.volume
173
dc.journal.pagination
108936-108942
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Saint Martin, María Laura Gisela. Universidad Nacional de San Martín. Instituto Sabato; Argentina
dc.description.fil
Fil: Portu, Agustina Mariana. Comisión Nacional de Energía Atómica. Gerencia de Area de Aplicaciones de la Tecnología Nuclear. Gerencia de Radiobiología (Centro Atómico Constituyentes); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Ibarra, M. L.. Comisión Nacional de Energía Atómica. Gerencia de Area de Aplicaciones de la Tecnología Nuclear. Gerencia de Radiobiología (Centro Atómico Constituyentes); Argentina. Universidad Nacional de San Martín; Argentina
dc.description.fil
Fil: Alurralde, Martín Alejo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Comisión Nacional de Energía Atómica; Argentina
dc.journal.title
Radiation Physics and Chemistry (Oxford)
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0969806X19315749
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.radphyschem.2020.108936
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