• DocumentCode
    293861
  • Title

    The role of charge transfer states in Ln3+-activated scintillators

  • Author

    Wojtowicz, A.J. ; Lempicki, A. ; Wisniewski, D. ; Balcerzyk, M. ; Brecher, C.

  • Author_Institution
    Dept. of Chem., Boston Univ., MA, USA
  • Volume
    1
  • fYear
    1994
  • fDate
    30 Oct-5 Nov 1994
  • Firstpage
    134
  • Abstract
    The ability of activating ions to change their charge state under ionizing radiation is essential for efficient performance of rare earth (RE) doped scintillator materials utilizing the carrier recombination energy. In this Communication we present and consider two different cases: In one case (Ce:LuPO4, Ce:YAlO3, Ce:LuAlO 3) the charge state involved in the scintillation mechanism is Ce4+, while in the other (Yb:LuPO4, YbPO4 ) it is Yb2+. The sequence of carrier trapping is discussed and interpreted using a simple, single-configuration-coordinate model
  • Keywords
    cerium; charge transfer states; electron-hole recombination; ionoluminescence; lutetium compounds; scintillation; solid scintillation detectors; ytterbium compounds; yttrium compounds; Ln3+-activated scintillators; LuAlO3:Ce; LuPO4:Ce; LuPO4:Yb; YAlO3:Ce; YbPO4; activating ions; carrier recombination energy; carrier trapping; charge state; charge transfer states; rare earth doped scintillator materials; scintillation mechanism; single-configuration-coordinate model; Charge carrier processes; Charge transfer; Chemistry; Conducting materials; Electron traps; Energy exchange; Ionizing radiation; Lattices; Physics; Pulse measurements;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Nuclear Science Symposium and Medical Imaging Conference, 1994., 1994 IEEE Conference Record
  • Conference_Location
    Norfolk, VA
  • Print_ISBN
    0-7803-2544-3
  • Type

    conf

  • DOI
    10.1109/NSSMIC.1994.474374
  • Filename
    474374
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=293861