Optical absorption in LiF: Mg, Ti and its application to the Unified Interaction Model predictions of thermoluminescence dose response

摘要: The optical absorption (OA) spectrum of LiF: Mg, Ti has been investigated by I{sub m} - T{sub stop} pulsed annealing in steps 3-4 C over the temperature range from 100 to 300 C. In agreement with previous investigations, 5.45 eV OA band is identified as a likely candidate for recombination stage competitor responsible composite peak 5 supra linearity. An additional at 5.7 also possible competitor. First order kinetic analysis yields an activation energy 0.80 {+-} 0.13 4.0 usually associated 5, which similar value binding Mg-Li{sub vac} trimer believed form trapping structure. Dose response measurements result dose filling constants {beta} {sub TC} = 0.9 0.1 x 10{sup -3} Gy{sup -1} and cc} 3.8 0.8 10 {sup -4} bands respectively. It demonstrated quantitatively framework Unified Interaction Model (UNIM) that experimentally measured linearity can be theoretically predicted all characteristics competitor, i.e., early, late or no entry into saturation up levels 5000 Gy. Previous objections literature identification are therefore judged invalid. (Author)