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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  
dc.subject
PHOTODEGRADATION  
dc.subject
POLYCARBONATE  
dc.subject
UV-C RADIATION  
dc.subject.classification
Física Atómica, Molecular y Química  
dc.subject.classification
Ciencias Físicas  
dc.subject.classification
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