caa a22 4500 463224469 CHVBK 20180405153222.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s10853-006-1319-6 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1319-6 Scintillating properties of pure and doped BGO ceramics [Elektronische Daten] [Geane Santana, Ana de Mello, Mário Valerio, Zélia Macedo] The ceramic processing and characterization of Bi4Ge3O12 pure and doped with Eu3+ and Nd3+ was performed in order to investigate its potential use in radiation detector devices. Single phase Bi4Ge3O12 in pure state and containing 1% of the dopands Nd3+ and Eu3+ were produced via a solid state route and their photoluminescent and radioluminescent properties were investigated. When excited at 200-230nm, pure BGO ceramics presented a wide photoluminescent band emission centered at 450nm, assigned to the Bi3+ internal transitions. For the doped samples under the same excitation, this wide band was superposed by the emission peaks of the rare earth dopands, at around 600nm for BGO:Eu3+ and at 350nm, 430 and 600nm for BGO:Nd3+. Radioluminescence measurements presented similar results and allowed the determination of the light output efficiency of the three scintillators. The values determined were 4×103 photons/MeV for BGO:Nd and 5.9×103 photons/MeV for BGO:Eu, which are higher than the value 3.9×103 photons/MeV determined previously for the pure ceramic. A selective sensibility of the BGO:Eu ceramics to the nature and energy of the radiation, which is not observed in pure samples, was also presented and discussed. Springer Science+Business Media, LLC, 2007 Santana Geane Grupo de Materiais Cerâmicos Avançados, Departamento de Física, Universidade Federal de Sergipe, Campus Universitário, 49, 100-000, Sao Cristovao, SE, Brazil aut de Mello Ana Laboratório de Preparação e Caracterização de Materiais, Departamento de Física, Universidade Federal de Sergipe, Campus Universitário, 49, 100-000, Sao Cristovao, SE, Brazil aut Valerio Mário Laboratório de Preparação e Caracterização de Materiais, Departamento de Física, Universidade Federal de Sergipe, Campus Universitário, 49, 100-000, Sao Cristovao, SE, Brazil aut Macedo Zélia Grupo de Materiais Cerâmicos Avançados, Departamento de Física, Universidade Federal de Sergipe, Campus Universitário, 49, 100-000, Sao Cristovao, SE, Brazil aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/7(2007-04-01), 2231-2235 0022-2461 42:7<2231 2007 42 10853 https://doi.org/10.1007/s10853-006-1319-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1319-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Santana Geane Grupo de Materiais Cerâmicos Avançados, Departamento de Física, Universidade Federal de Sergipe, Campus Universitário, 49, 100-000, Sao Cristovao, SE, Brazil aut NATIONALLICENCE 700 1- de Mello Ana Laboratório de Preparação e Caracterização de Materiais, Departamento de Física, Universidade Federal de Sergipe, Campus Universitário, 49, 100-000, Sao Cristovao, SE, Brazil aut NATIONALLICENCE 700 1- Valerio Mário Laboratório de Preparação e Caracterização de Materiais, Departamento de Física, Universidade Federal de Sergipe, Campus Universitário, 49, 100-000, Sao Cristovao, SE, Brazil aut NATIONALLICENCE 700 1- Macedo Zélia Grupo de Materiais Cerâmicos Avançados, Departamento de Física, Universidade Federal de Sergipe, Campus Universitário, 49, 100-000, Sao Cristovao, SE, Brazil aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/7(2007-04-01), 2231-2235 0022-2461 42:7<2231 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer