Title :
Correlation between Thermoluminescence and Radiation Damage in Bismuth Germanate
Author_Institution :
Schlumberger-Doll Research Old Quarry Road Ridgefield, CT 06877
Abstract :
Thermoluminescence properties of bismuth germanate and their relationship to radiation damage characteristics have been investigated. Thermoluminescence and radiation damage in bismuth germanate display several similar properties including similar responses as a function of radiation dose, similar saturation levels, and similar decay times. Also a correlation was found between the thermoluminescence sensitivities and radiation damage sensitivities of four different crystals. The traps responsible for the radiation damage and those which store the thermoluminescence signal appear to be either closely related or actually the same traps. Four trapping centers can be seen in the thermoluminescence glow curves. The depth of the dominant trap is 1.1 eV.
Keywords :
Bismuth; Computed tomography; Crystals; Electron traps; Gamma ray detection; Gamma rays; Luminescence; Photomultipliers; Solid scintillation detectors; Temperature dependence;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1985.4336891