Results 171 to 180 of about 6,277 (213)
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Supralinearity, sensitisation and phototransferred thermoluminescence in LiF TLD-100
Journal of Physics D: Applied Physics, 1982A recently proposed model to explain the supralinearity, sensitisation and PTTL in LiF TLD-100 is discussed in detail. It is shown that the predictions of the model are not borne out by the experimental results, and hence the model in its present form is inadequate.
S V Moharil, S P Kathuria
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Clustering and precipitation in LiF (TLD-100) crystals. I
Journal of Physics D: Applied Physics, 1982The clustering and precipitation of Mg-vacancy pairs in LiF (TLD-100) has been studied by means of dielectric loss measurements as a function of aging time at different temperatures. Rapid quenching techniques ensured that no (Mg2+V-) clustering had taken place prior to aging as in many previous studies.
G C Taylor, E Lilley
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Relative Efficiency Of TLD-100 Exposed to X-Rays
AIP Conference Proceedings, 2008The relative efficiency of TLD‐100 (LiF:Mg,Ti) exposed to X‐rays in the range from 30 to 250 kV, with respect to 60CO gamma rays has been measured. Glow curves were deconvoluted into peaks 3 to 9. All efficiencies were greater than 1 having a maximum of 1.38 for the dosimetric region (peaks 3+4+5) and peaks 4, 5 and 9, and 2.2 for peaks 6a, 6b, 7 and 8
J. M. Ixquiac-Cabrera +5 more
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Response of TLD‐100 in mixed fields of photons and electrons
Medical Physics, 2013Purpose:Thermoluminescent dosimeters (TLDs) are routinely used for dosimetric measurements of high energy photon and electron fields. However, TLD response in combined fields of photon and electron beam qualities has not been characterized. This work investigates the response of TLD‐100 (LiF:Mg,Ti) to sequential irradiation by high‐energy photon and ...
Michael J, Lawless +3 more
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Order of kinetics for thermoluminescence in LiF TLD-100
Journal of Physics D: Applied Physics, 1981Comments on the result given by Kathuria and Sunta (ibid., vol.12, p.1573, 1979) for the order of kinetics of peak V of the TLD-100 thermoluminescence. Further results are presented to support the view that peak V has constant first-order kinetics.
E Lilley, G C Taylor
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Ionisation density effects following optical excitation in LiF:Mg, Ti (TLD-100)
Radiation Protection Dosimetry, 2007The TL signal following 5 eV photon excitation of previously irradiated and readout material has been studied as a function of ionisation density and various experimental parameters: (i) maximum temperature of the first readout; (ii) photon fluence; (iii) photon energy and (iv) beta ray dose.
D, Weiss, Y, Horowitz, L, Oster
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Temperature stability of CaF2:Mn and LiF(TLD-100) thermoluminescent dosimeters
The International Journal of Applied Radiation and Isotopes, 1967Abstract Thermolunimescent dosimeters containing LiF(TLD-100) and others containing CaF 2 :Mn have been studied to determine the influence of ambient temperature, either during γ-irradiation or during later storage, upon the thermoluminescence response.
S G, Gorbics, F H, Attix, J A, Pfaff
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Reproducibility study of TLD-100 micro-cubes at radiotherapy dose level
Applied Radiation and Isotopes, 1999The precision of the thermoluminescent response of Harshaw micro-cube dosimeters (TLD-100), evaluated in both Harshaw thermoluminescent readers 5500 and 3500, for 1 Gy dose value, was investigated. The mean reproducibility for micro-cubes, pre-readout annealed at 100 degrees C for 15 min, evaluated with the manual planchet reader 3500, is 0.61% (1 ...
L A, da Rosa, D F, Regulla, U A, Fill
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Influence of N+ ion bombardment on LiF (TLD-100) sensitivity
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1997Abstract The thermoluminescence (TL) sensitivity of the LiF (TLD-100) dosimeter to γ-rays under the influence of N + ion bombardment has been investigated. Several groups of LiF dosimeters were consequently bombarded by a flux of ions ranging from 3.1 × 10 13 to 25 × 10 13 ions/cm 2 ·s −1 , at different exposure times before and after an annealing ...
H.M. Abdel-Hamid +3 more
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Photoluminescence and thermoluminescence of Ti centers in LiF (TLD-100)
Journal of Applied Physics, 1984The influence of thermal treatments (quenching and annealing) on the optical absorption and luminescence (emission and excitation) spectra of the Ti-related 200-nm absorption band is studied. Correlations between thermoluminescence (TL) and photoluminescence (PL) emission spectra at different temperatures support the identification of the 200-nm Ti ...
L. Delgado, A. Delgado
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