Autor segons l'article: Adell I; Pujol MC; Solé RM; Aguiló M; Díaz F
Departament: Química Física i Inorgànica
Autor/s de la URV: Aguiló Díaz, Magdalena / Díaz González, Francisco Manuel / Pujol Baiges, Maria Cinta / Solé Cartañà, Rosa Maria
Paraules clau: Synchrotron radiation Spectroscopy Scintillation properties Rare earth compound Radioluminescence Radiation-damage Radiation damage Optical spectroscopy Mechanisms Luminescence Growth Gd3+ Crystal growth
Resum: © 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.
Àrees temàtiques: 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
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 00222313
Adreça de correu electrònic de l'autor: f.diaz@urv.cat rosam.sole@urv.cat mariacinta.pujol@urv.cat magdalena.aguilo@urv.cat
Identificador de l'autor: 0000-0003-4581-4967 0000-0002-5769-4141 0000-0002-1052-8031 0000-0001-6130-9579
Data d'alta del registre: 2024-06-22
Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
Enllaç font original: https://www.sciencedirect.com/science/article/abs/pii/S0022231320301526
Referència a l'article segons font original: Journal Of Luminescence. 225 (117339):
Referència 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 Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
DOI de l'article: 10.1016/j.jlumin.2020.117339
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2020
Tipus de publicació: Journal Publications
Repositori URV