• DocumentCode
    1470822
  • Title

    Scintillators Based on BaF _{2} With Improved Performance

  • Author

    Rodnyi, Piotr A. ; Gain, Stanislav Dmitrievich ; Garibin, Eugeni Andreevich ; Seliverstov, Dmitryi Mikhailovich ; Khanin, Vasily M.

  • Author_Institution
    St. Petersburg State Polytech. Univ., St. Petersburg, Russia
  • Volume
    59
  • Issue
    5
  • fYear
    2012
  • Firstpage
    2168
  • Lastpage
    2172
  • Abstract
    The spectral-kinetic characteristics of BaF2 crystals and ceramics doped with Cd, Sc, and Tm have been investigated. Some increase in intensity of an ultrafast component (I1) of radioluminescence compared to I1 of the BaF2 crystal has been recorded in BaF2:Sc (2.0 mol.%) ceramics annealed in an atmosphere of CF 4. Significantly greater increase in I1 was obtained in a BaF 2:Tm (1.0 mol.%) crystal. A new mechanism explaining the growth of I1 has been proposed; the transfer of energy from the excited (Tm3+)* ion to a nearby pair of Ba2+ ion-interstitial ion of fluorine.
  • Keywords
    annealing; barium compounds; cadmium; ceramics; doping; high-speed optical techniques; interstitials; photoluminescence; scandium; scintillation; thulium; BaF2:Cd; BaF2:Sc; BaF2:Tm; annealing; ceramics; doping; energy transfer; excited ion; fluorine ion; improved performance; ion-interstitials; radioluminescence; scintillators; spectral-kinetic characteristics; ultrafast component; Annealing; Barium; Ceramics; Crystals; Ions; Luminescence; Solids; Barium compounds; VUV; fluoride; solid scintillation detectors;
  • fLanguage
    English
  • Journal_Title
    Nuclear Science, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9499
  • Type

    jour

  • DOI
    10.1109/TNS.2012.2188542
  • Filename
    6170583
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1470822