Year: 2001
Type: article
Abstract: The stability of glow peaks in 6LiF:Mg,Ti (TLD-600) exposed to a high-energy Fe-ion beam was examined in comparison to 137Cs gamma-ray irradiation under changing annealing conditions. The peak areas induced by the Fe ions were much smaller than those by gamma-rays. The sizes and positions of peaks 3-5 in Fe-ion irradiated samples were hardly changed after post-annealing at 100 degrees C x 30 min, regardless of the pre-annealing conditions (fast quenching or subsequent pre-annealing at 100 degrees C x 2 h). Whereas, the peaks in gamma-ray irradiated samples were notably affected by post-annealing; the peak positions and peak-area sizes changed in different ways depending on the pre-annealing conditions. The effects of post-annealing on peak 6 were identical for Fe ions and gamma-rays. These facts suggest that peaks 3-5 in TLD-600 comprised both stable and unstable luminescent centers, and that the latter part would be easily depleted in highly dense ionization.
Source: Journal of Radiation Research
DOI: 10.1269/jrr.42.69
Author: HIROSHI YASUDA
Institution: National Institute of Radiological Sciences
Language: English
Subfield: Radiation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,430
OpenAlex ID: W2162453759