Structural State and Anomalous Fading of Thermoluminescence of Oligoclase
by Sears, D. W. G.; Myers, B. M.; Hartmetz, C. P.; Hasan, F. A.
Anomalous fading of thermoluminescence was measured in four samples of oligoclase from Muskwa Lake, Canada. Two samples were annealed below the order/disorder transformation temperature and two were annealed at higher temperatures; X-ray diffraction measurements confirmed that the first two samples were fully ordered, while the others underwent appreciable, but not complete, disordering. After beta-irradiation and a 15-day storage at room temperature, all samples showed anomalous fading in the high temperature regions (> 400-degrees-C) of the glow curve, but the amount of fading was less for the partially disordered samples than for the fully ordered samples. We suggest that these data are consistent with the suggestion that the structural state of feldspars plays an important part in determining their anomalous fading properties.
- Journal
- Nuclear Tracks and Radiation Measurements
- Volume
- 17
- Issue
- 4
- Year
- 1990
- Start Page
- 583-586
- URL
- https://dx.doi.org/10.1016/1359-0189(90)90020-x
- ISBN/ISSN
- 0735-245X
- DOI
- 10.1016/1359-0189(90)90020-x