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GEANT4 studies on the propagation and detection of scintillation light in long thin YAP crystals

The response to γ-rays of long thin polished or wrapped YAP:Ce scintillator bars read out at both edges by photomultipliers has been studied by means of GEANT4 simulations with the aim to investigate the capability of the charge division method to reconstruct the gamma interaction point in the cryst...

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Detalles Bibliográficos
Autores principales: Ciocia, F, Braem, A, Chesi, E, De Leo, R, Joram, C, Lagamba, L, Nappi, E, Séguinot, J, Vilardi, I, Weilhammer, P
Lenguaje:eng
Publicado: 2009
Materias:
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2008.11.133
http://cds.cern.ch/record/1278194
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author Ciocia, F
Braem, A
Chesi, E
De Leo, R
Joram, C
Lagamba, L
Nappi, E
Séguinot, J
Vilardi, I
Weilhammer, P
author_facet Ciocia, F
Braem, A
Chesi, E
De Leo, R
Joram, C
Lagamba, L
Nappi, E
Séguinot, J
Vilardi, I
Weilhammer, P
author_sort Ciocia, F
collection CERN
description The response to γ-rays of long thin polished or wrapped YAP:Ce scintillator bars read out at both edges by photomultipliers has been studied by means of GEANT4 simulations with the aim to investigate the capability of the charge division method to reconstruct the gamma interaction point in the crystal. The GEANT4 simulations took into account the optical properties of the scintillator like absorption, reflection, and diffusion during the passage of the light through the crystal. The simulations were able to reproduce experimental measurements of light yields in polished and wrapped YAP:Ce crystals with dimensions 3.2×3.2×100 mm3. Once validated, the simulations could show that a particular patterning of the crystal surface, which enhances the surface absorption, should lead to a significant improvement of the reconstruction precision of the charge division method, without compromising the energy resolution.
id cern-1278194
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
record_format invenio
spelling cern-12781942019-09-30T06:29:59Zdoi:10.1016/j.nima.2008.11.133http://cds.cern.ch/record/1278194engCiocia, FBraem, AChesi, EDe Leo, RJoram, CLagamba, LNappi, ESéguinot, JVilardi, IWeilhammer, PGEANT4 studies on the propagation and detection of scintillation light in long thin YAP crystalsDetectors and Experimental TechniquesThe response to γ-rays of long thin polished or wrapped YAP:Ce scintillator bars read out at both edges by photomultipliers has been studied by means of GEANT4 simulations with the aim to investigate the capability of the charge division method to reconstruct the gamma interaction point in the crystal. The GEANT4 simulations took into account the optical properties of the scintillator like absorption, reflection, and diffusion during the passage of the light through the crystal. The simulations were able to reproduce experimental measurements of light yields in polished and wrapped YAP:Ce crystals with dimensions 3.2×3.2×100 mm3. Once validated, the simulations could show that a particular patterning of the crystal surface, which enhances the surface absorption, should lead to a significant improvement of the reconstruction precision of the charge division method, without compromising the energy resolution.oai:cds.cern.ch:12781942009
spellingShingle Detectors and Experimental Techniques
Ciocia, F
Braem, A
Chesi, E
De Leo, R
Joram, C
Lagamba, L
Nappi, E
Séguinot, J
Vilardi, I
Weilhammer, P
GEANT4 studies on the propagation and detection of scintillation light in long thin YAP crystals
title GEANT4 studies on the propagation and detection of scintillation light in long thin YAP crystals
title_full GEANT4 studies on the propagation and detection of scintillation light in long thin YAP crystals
title_fullStr GEANT4 studies on the propagation and detection of scintillation light in long thin YAP crystals
title_full_unstemmed GEANT4 studies on the propagation and detection of scintillation light in long thin YAP crystals
title_short GEANT4 studies on the propagation and detection of scintillation light in long thin YAP crystals
title_sort geant4 studies on the propagation and detection of scintillation light in long thin yap crystals
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1016/j.nima.2008.11.133
http://cds.cern.ch/record/1278194
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