Glow-Peak Stability in ^6LiF : Mg,Ti (TLD-600) Exposed to a Fe-ion beam
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概要
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The stability of glow peaks in ^6LiF:Mg,Ti (TLD-600) exposed to a high-energy Fe-ion beam was examined in comparison to ^<137>Cs γ-ray irradiation under changing annealing conditions. The peak areas induced by the Fe ions were much smaller than those by γ-rays. The sizes and positions of peaks 3.5 in Fe-ion irradiated samples were hardly changed after post-annealing at 100°C × 30 min, regardless of the pre-annealing conditions (fast quenching or subsequent pre-annealing at 100℃ × 2h). Whereas, the peaks in γ-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 γ-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.
- 日本放射線影響学会の論文
著者
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YASUDA Hiroshi
National Institute of Radiological Sciences
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Yasuda H
National Inst. Radiological Sci. Chiba‐shi Jpn
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