LiF: Mg, Ti (TLD-600/700) 第4ピークの不安定性: γ線照射とFeイオン照線の比較

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  • 保田 浩志
    放射線医学総合研究所国際宇宙放射線医学研究センター

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タイトル別名
  • Peak 4 Instability in LiF: Mg, Ti (TLD-600/700) : Comparison for γ-Ray and Fe-lon Irradiation
  • Peak 4 Instability in LiF:Mg,Ti(TLD-600/700):Comparison for γ-Ray and Fe-Ion Irradiation
  • Peak 4 Instability in LiF Mg Ti TLD 600 700 Comparison for ガンマ Ray and Fe Ion Irradiation
  • Peak 4 Instability in LiF: Mg, Ti (TLD-600/700) : Comparison for γ-Ray and Fe-lon Irradiation

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Instability of peak 4 in LiF: Mg, Ti (TLD-600/700) was experimentally examined by comparing the glow curves obtained for 137Cs γ-rays and Fe-ion beam. After post-annealing at 100°C×30min, thermoluminescence (TL) intensity around peak 4 notably decreased only for γ-ray irradiation. In Fe-ion irradiated samples, post-annealing effects were scarcely observed in the TL intensities in the peak-4 region. These results suggest that the peak-4 luminescent centers are unstable and more vulnerable than other peaks to highly-dense ionization.

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