Local transitions and charge transport in thermoluminescence of calcite

Yoram Kirsh, P. D. Townsend, Shlomo Shoval

Research output: Contribution to journalArticlepeer-review


Colourless, natural calcite single crystals exhibit several distinct TL peaks following X- irradiation at room temperature. The emission spectra of all the peaks are attributed to Mn impurities. Kinetic analysis of the main peak at about 80°C discloses a continuous spectrum of traps having the same activation energy, 0.73 eV, and a distribution of frequency factors. Four additional peaks at 152, 179, 254 and 296°C were assigned activation energies of 0.92, 1.01, 1.52 and 1.70 eV, respectively. The kinetic data and the analysis of the emission spectra support Medlin's model which ascribes the 80°C peak to local transitions such as tunnelling, and the higher temperature peaks to processes which involve transport of ionic charge-carriers.

Original languageEnglish
Pages (from-to)115-119
Number of pages5
JournalInternational Journal of Radiation Applications and Instrumentation. Part
Issue number2-3
StatePublished - 1987
Externally publishedYes

Bibliographical note

Copyright 2014 Elsevier B.V., All rights reserved.


Dive into the research topics of 'Local transitions and charge transport in thermoluminescence of calcite'. Together they form a unique fingerprint.

Cite this