Modeling and optimization of scintillator arrays for PET detectors

Emóke Lórincz, Gábor Erdei, Imre Péczeli, Cecilia Steinbach, Ferenc Ujhelyi, Tamás Bükki

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

A new Zemax model has been developed, which reliably predicts the light output of scintillator crystal pins for Positron Emission Tomography. Different configurations, including pin shape, surface finish and reflector types are investigated. The simulations use the actual measured wavelength-dependent parameters of the scintillator crystal, of the reflector and of the PMT's components. Good agreement is demonstrated between simulated and measured light output figures for 33 different pin configurations. The highest light output was found by both simulation and experiment for the pins with polished superficies (either polished or diffuse γ-side) with a non-coupled high reflectivity specular reflector around the superficies and an optically coupled high reflectivity diffuse reflector on the γ-side. We also present the measured light output homogeneity of a scintillator array fabricated according to one of the best pin configurations.

Original languageEnglish
Article number5410022
Pages (from-to)48-54
Number of pages7
JournalIEEE Transactions on Nuclear Science
Volume57
Issue number1 PART 1
DOIs
Publication statusPublished - Feb 1 2010

Keywords

  • Detector array
  • Monte carlo simulation
  • Pet
  • Scintillation detectors

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Lórincz, E., Erdei, G., Péczeli, I., Steinbach, C., Ujhelyi, F., & Bükki, T. (2010). Modeling and optimization of scintillator arrays for PET detectors. IEEE Transactions on Nuclear Science, 57(1 PART 1), 48-54. [5410022]. https://doi.org/10.1109/TNS.2009.2038215