Skip Navigation

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (6)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Lima, J.F.
Right arrow Articles by Okuno, E.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Lima, J.F.
Right arrow Articles by Okuno, E.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Radiation Protection Dosimetry 33:143-146 (1990)
© 1990 Oxford University Press

Phototransferred Thermoluminescence in Calcite

J.F. Lima, P. Trzesniak, E.M. Yoshimura and E. Okuno

The effect of ultraviolet (UV) radiation on the thermoluminescent properties of Brazilian calcite was studied, using both untreated (without any treatment in the laboratory) and treated samples (with a heat treatment at 400 oC for 1 h followed by a gamma ray exposure of 7.5 C.Kg-1). The glow curve of the untreated samples showed peaks at 250 oC (peak 2) and 350 oC (peak 3), while the treated samples presented an additional peak at 150 oC (peak 1). Thermal bleaching was performed on treated samples in order to empty the traps corresponding to either peak 1 or peaks 1 and 2. UV exposure following this procedure caused the reappearance of the erased peaks, at the expense of the peaks related to the deeper traps. The experimental results can be explained by the phototransference of charge carriers.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.