• DocumentCode
    1139326
  • Title

    Scintillation Properties of \\rm LuI_3:\\rm Ce^3+ -High Light Yield Scintillators

  • Author

    Birowosuto, M.D. ; Dorenbos, P. ; van Eijk, C.W.E. ; Krämer, K.W. ; Güdel, H.U.

  • Author_Institution
    Interfaculty Reactor Inst., Delft Univ. of Technol., Netherlands
  • Volume
    52
  • Issue
    4
  • fYear
    2005
  • Firstpage
    1114
  • Lastpage
    1118
  • Abstract
    The scintillation properties of  LuI_3: Ce^3+ (pure, 0.5%, 2%, and 5%  Ce^3+ ), a new member of the generation of  Ce^3+ doped lanthanide trihalide scintillators, are presented. This material has a calculated density of 5.6  g/cm^3 and an atomic number Z_eff of 60.2. Under optical and X-ray excitation,  Ce^3+ emission is observed to peak at 472 and 535 nm. A high light yield of 76 000 photons per MeV (ph/MeV) was measured for  LuI_3 :2%  Ce^3+ .  LuI_3: Ce^3+ has a nonexponential decay time. The contribution of short decay components (within 50 ns) to the total light yield is around 50%. An energy resolution (full-width half maximum over peak position) for the 662 keV full energy peak of 4.7\\pm 0.5% was observed for  LuI_3 :0.5%  Ce^3+ .
  • Keywords
    cerium; gamma-ray detection; lutetium compounds; scintillation; solid scintillation detectors; 472 nm; 535 nm; Ce3+ doped lanthanide trihalide scintillators; Ce3+ emission; LuI3:Ce3+; LuI3:Ce3+-high light yield scintillators; X-ray excitation; high light yield; lanthanide trihalide; nonexponential decay time; nonproportionality; optical excitation; scintillation properties; Atom optics; Atomic measurements; Chemical technology; Crystalline materials; Crystallization; Crystals; Energy resolution; Optical materials; Solid scintillation detectors; Time factors; decay time; lanthanide trihalide; light yield; nonproportionality; scintillator;
  • fLanguage
    English
  • Journal_Title
    Nuclear Science, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9499
  • Type

    jour

  • DOI
    10.1109/TNS.2005.852630
  • Filename
    1495814