Defect Structure of Glow Peak 1 in LiF:Mg,Ti (TLD-100)
نویسنده
چکیده
The possible defect structure of peak 1 of LiF:Mg,Ti (TLD-100) was studied in the present work after different pre-irradiation heat treatments between 80◦C and 150◦C using the computer glow curve deconvolution (CGCD) method. It was shown that the defect structure of peak 1 is based on colloid centers, Ti-3O2 -mixed centers and U1-centers.
منابع مشابه
Glow-Peak Stability in LiF:Mg,Ti (TLD-600) Exposed to a Fe-ion beam
thermoluminescent detector/LiF:Mg,Ti/glow curve deconvolution/annealing/NIRS-HIMAC The stability of glow peaks in LiF:Mg,Ti (TLD-600) exposed to a high-energy Fe-ion beam was examined in comparison to 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 ...
متن کاملتعیین پارامترهای فروکشی دمایی دزیمتر ترمولومینسانس (TLD-100) LiF:Mg,Ti
Thermal quenching is a known and important effect which should be taken into account in studying thermoluminescence (TL) phenomenon. This effect causes the probability of non-radiative recombinations to be increased with raising temperature in TL process. This article deals with changes of the TL glow curve of LiF:Mg, Ti (TLD-100) with heating rate. It was observed that the main dosimetry peak ...
متن کاملThe Investigation of the Thermoluminescence Emission Bands of LiF:Mg,Ti (TLD-100) by a Simple Developed Model
In this study, a new simple model based on the classical treatment of lattice vibrations and the Franck-Condon principle is developed to describe the shape of thermoluminescence (TL) emission bands of crystalline solids. According to developed model, shape of the emission band has a Gaussian form and depends on just two physical parameters: peak energy E0 and broadening of emission spectra U. I...
متن کاملInvestigation of the ionisation density dependence of the glow curve characteristics of LIF:MG,TI (TLD-100).
The dependence of the shape of the glow curve of LiF:Mg,Ti (TLD-100) on ionisation density was investigated using irradiation with (90)Sr/(90)Y beta rays, 60 and 250 kVp X rays, various heavy-charged particles and 0.2 and 14 MeV neutrons. Special attention is focused on the properties of high-temperature thermoluminescence; specifically, the behaviour of the high-temperature ratio (HTR) of Peak...
متن کاملTwenty Five Years of TL-Dose Measurements at the NRC-NEGEV
In the early years, the routine personal dosimetry at the Nuclear Research CenterNegev was performed by using photographic films. In 1975, the TLD method was introduced. The routine personal dosimetry was performed by using the LiF:Mg, Ti phosphors (G-1 cards), and employing an automatic Harshaw 2271 reader. The heating of the phosphor was performed by a hot finger, and the integral light outpu...
متن کامل