Relationship between microstructure and efficiency of lithium silicate scintillating glasses: The effect of alkaline earths
- Pacific Northwest National Lab., Richland, WA (United States)
Lithium silicate glasses containing Ce{sup 3+} are known to be scintillators. Glasses in this family in which the Li is enriched ({sup 6}Li) are used as neutron detectors. The addition of Mg to this glass is known to increase the scintillation efficiency. We have found that substituting other alkaline earths results in a monotonic decrease of the scintillation efficiency with increasing atomic number. The total variation in scintillation efficiency from Mg to Ba is nearly a factor of 3. Prior experiments with this glass family show small differences in Raman and fluorescence spectra; evidence from thermoluminescence experiments indicates that the scintillation efficiency is most strongly correlated with structural effects in the neighborhood of the Ce{sup 3+} activator ion. The results of low-temperature studies of fluorescence and thermoluminescence of these glasses will be reported.
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 472024
- Report Number(s):
- CONF-950401-; TRN: 97:002636-0011
- Resource Relation:
- Conference: 97. annual meeting of the American Ceramic Society, Cincinnati, OH (United States), 30 Apr - 1 May 1995; Other Information: PBD: 1996; Related Information: Is Part Of Ceramic transactions: Synthesis and application of lanthanide-doped materials. Volume 67; Potter, B.G. Jr.; Bruce, A.J. [eds.]; PB: 157 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Correlation of XANES features with the scintillation efficiencies of Ce doped alkaline earth lithium silicate glasses
Relationship between microstructure and efficiency of lithium silicate scintillating glasses: The effect of replacing lithium by sodium