Valency conversions in rare-earth ions of gamma irradiated CaSO4phosphors
- 20 March 1980
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 13 (8) , 1555-1557
- https://doi.org/10.1088/0022-3719/13/8/024
Abstract
Direct evidence of the reduction of trivalent rare-earth (RE) ions by irradiation and reoxidation of the divalent ions on subsequent heating is presented from optical absorption and spectrophotofluorescence measurements on CaSO4 phosphors doped with Ce, Eu, Dy or Tm. Such evidence provides strong support for a model for thermoluminescence processes in CaSO4(RE) phosphors which has already been predicted.Keywords
This publication has 3 references indexed in Scilit:
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- Thermoluminescence of CaSO4doped with rare earthsJournal of Physics C: Solid State Physics, 1974
- Survey of the Spectra of the Divalent Rare-Earth Ions in Cubic CrystalsThe Journal of Chemical Physics, 1963