The doping of PbWO4 in shaping its scintillator characteristics

Authors
Nikl, M Bohacek, P Mihokova, E Rosa, J Martini, M Vedda, A Fabeni, P Pazzi, GP Laguta, V Kobayashi, M Ishii, M Usuki, Y Zimmermann, D Baccaro, S Cecilia, A
Citation
M. Nikl et al., The doping of PbWO4 in shaping its scintillator characteristics, RADIAT MEAS, 33(5), 2001, pp. 705-708
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
RADIATION MEASUREMENTS
ISSN journal
13504487 → ACNP
Volume
33
Issue
5
Year of publication
2001
Pages
705 - 708
Database
ISI
SICI code
1350-4487(200110)33:5<705:TDOPIS>2.0.ZU;2-W
Abstract
The influence of different doping ions on the emission and scintillation ch aracteristics of PbWO4 scintillator was studied. In the case of Ce3+ doping , efficient non-radiative recombination at Ce3+ sites takes place resulting in a lower light yield and faster luminescence and scintillation response. Th4+ doping shows all the positive features of trivalent ion doping used p reviously for PbWO4 scintillator optimisation. Heavily La3+ and Gd3+ doped PbWO4 crystals (up to several molar percent) a suppressed light yield and s ubnanosecond scintillation response. Finally, Tb3+ and Pr3+ doping results in dominant emission lines at 543 and 602 mn with decay times of about 650 and 61 mus at 295 K, respectively. (C) 2001 Elsevier Science Ltd. All right s reserved.