Autor según el artículo: Adell I; Pujol MC; Solé RM; Aguiló M; Díaz F
Departamento: Química Física i Inorgànica
Autor/es de la URV: Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Pujol Baiges, Maria Cinta / Solé Cartañà, Rosa Maria
Palabras clave: Synchrotron radiation Spectroscopy Scintillation properties Rare earth compound Radioluminescence Radiation-damage Radiation damage Optical spectroscopy Mechanisms Luminescence Growth Gd3+ Crystal growth
Resumen: © 2020 Elsevier B.V. The research for new scintillator materials with improved properties is gaining growing interest due to their wide variety of applications, including medical diagnosis. Here, radioluminescence studies under synchrotron X-ray excitation of bulk single crystals of type III Ce:KGd(PO3)4 and Pr:KGd(PO3)4 (Ce:KGdP and Pr:KGdP) with high crystalline quality have been carried out. The X-ray excited radioluminescence spectra show emission bands corresponding to 5d1 → 4f electronic transitions of Ce3+ and of Pr3+ in type III KGdP, being of great interest for scintillation applications. In the case of Ce:KGdP crystals, the absence of the 6PJ → 8S7/2 transitions of Gd3+ (~312 nm) can be ascribed to an efficient energy transfer from Gd3+ to Ce3+. In undoped and Pr3+-doped KGdP crystals, a change in coloration in the irradiated regions was observed after prolonged X-ray irradiation, which could be related to the presence of color centers.
Áreas temáticas: Química Optics Odontología Medicina ii Medicina i Materiais Interdisciplinar General chemistry Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Condensed matter physics Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciência de alimentos Chemistry (miscellaneous) Chemistry (all) Biotecnología Biophysics Biochemistry Atomic and molecular physics, and optics Astronomia / física
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 00222313
Direcció de correo del autor: f.diaz@urv.cat rosam.sole@urv.cat mariacinta.pujol@urv.cat magdalena.aguilo@urv.cat
Identificador del autor: 0000-0003-4581-4967 0000-0002-5769-4141 0000-0002-1052-8031 0000-0001-6130-9579
Fecha de alta del registro: 2024-06-22
Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
Enlace a la fuente original: https://www.sciencedirect.com/science/article/abs/pii/S0022231320301526
Referencia al articulo segun fuente origial: Journal Of Luminescence. 225 (117339):
Referencia de l'ítem segons les normes APA: Adell I; Pujol MC; Solé RM; Aguiló M; Díaz F (2020). Radioluminescence properties under X-ray excitation of type III Ce3+- and Pr3+-doped KGd(PO3)4 single crystals. Journal Of Luminescence, 225(117339), -. DOI: 10.1016/j.jlumin.2020.117339
URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
DOI del artículo: 10.1016/j.jlumin.2020.117339
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2020
Tipo de publicación: Journal Publications
Repositori URV