Luminescence properties and scintillation mechanisms of Ce3+-, Pr3+- and Nd3+-doped lutetium pyrosilicate

Ludivine Pidol; Bruno Viana; Andrée Kahn-Harari; Aurélie Bessière; Pieter Dorenbos

doi:10.1016/j.nima.2004.07.250

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Luminescence properties and scintillation mechanisms of Ce3+-, Pr3+- and Nd3+-doped lutetium pyrosilicate

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Luminescence properties and scintillation mechanisms of Ce3+-, Pr3+- and Nd3+-doped lutetium pyrosilicate

Ludivine Pidol, Bruno Viana, Andrée Kahn-Harari, Aurélie Bessière et Pieter Dorenbos

Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, Vol.537(1-2), pp.125-129

21/01/2005

DOI: https://doi.org/10.1016/j.nima.2004.07.250

Résumé

5d–4f luminescence

Scintillation

Silicates

Whereas Ce3+-doped Lu2Si2O7 presents a high scintillation light yield (around 26,000ph/MeV), Pr3+- and Nd3+-doped Lu2Si2O7 (LPS) are not so efficient (5000ph/MeV and <1000ph/MeV, respectively). Time-resolved spectroscopy using synchrotron radiation was used in order to study either undoped LPS and Ce3+-, Pr3+- or Nd3+-doped (LPS). The existence of a self-trapped exciton (STE) and its relative energy position could explain the limited light yield of Pr3+-doped LPS. For Nd3+-doped LPS, an efficient non-radiative relaxation from the lowest 4f25d to a 4f3 level (2G7/2), can occur, resulting in poor scintillation properties.

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Détails

Titre: Luminescence properties and scintillation mechanisms of Ce3+-, Pr3+- and Nd3+-doped lutetium pyrosilicate
Créateurs - sans rôle: Ludivine Pidol - Laboratoire de Chimie Appliquée de l’Etat Solide, UMR—CNRS 7574, Ecole Nationale Supérieure de Chimie de Paris (ENSCP), 11 rue Pierre et Marie Curie, Paris Cedex 0575231, France
Bruno Viana - Laboratoire de Chimie Appliquée de l’Etat Solide, UMR—CNRS 7574, Ecole Nationale Supérieure de Chimie de Paris (ENSCP), 11 rue Pierre et Marie Curie, Paris Cedex 0575231, France
Andrée Kahn-Harari - Laboratoire de Chimie Appliquée de l’Etat Solide, UMR—CNRS 7574, Ecole Nationale Supérieure de Chimie de Paris (ENSCP), 11 rue Pierre et Marie Curie, Paris Cedex 0575231, France
Aurélie Bessière - Radiation Technology Group, Interfaculty Reactor Institute, Delft University of Technology, Mekelweg 15, 2629 JB Delft, The Netherlands
Pieter Dorenbos - Radiation Technology Group, Interfaculty Reactor Institute, Delft University of Technology, Mekelweg 15, 2629 JB Delft, The Netherlands
Détails de publication: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, Vol.537(1-2), pp.125-129
Éditeur: Elsevier B.V
Nombre de pages: 5
Identifiants: 99139216909311
Unité académique: Institut Charles Gerhardt Montpellier - ICGM
Langue: English
Type de ressource: Journal article