title: Mathematical study of the thermoluminescence process in K2YF5:Tb(3+).
abstract: This paper presents results of studying the simulated thermoluminescence (TL) glow curve in potassium-yttrium double fluoride doped with trivalent optically active Tb(3+) ions (K2YF5:Tb(3+)). Samples have been irradiated with different doses (0.24, 2.4 and 24 Gy) of beta particles. Four trapping states and one kind of recombination-centre model have been used in this simulation. The activation energy and order of kinetics are determined using the general-order kinetic model. The results obtained using the authors' proposed models were tested and compared with the experimental glow curve of K2YF5:Tb(3+). The comparison has shown that the proposed model can predict more accurately and easily the behaviour of the TL glow curve at three different doses.
authors.affiliation: Faculty of Science of the Matter, Ibn Khaldoun University, Tiaret, Algeria Department of Physics, Electronic Microscopy and Materials Sciences Laboratory (EMMSL), B.P.1505 El M'Naouar, Oran, Algeria kadariahmed_14@yahoo.fr.
authors.forename: Ahmed
authors.initials: A
authors.lastname: Kadari
authors.affiliation: Department of Physics, Electronic Microscopy and Materials Sciences Laboratory (EMMSL), B.P.1505 El M'Naouar, Oran, Algeria.
authors.forename: Rabah
authors.initials: R
authors.lastname: Mostefa
authors.affiliation: Instituto de Fìsica Arroyo Seco, Universidad Nacional de la Centro de la Provincia de Buenos Aires (UNICEN), Pinto 399, Tandil 7000, Argentina.
authors.forename: Julián
authors.initials: J
authors.lastname: Marcazzó
authors.affiliation: Department of Physics, Electronic Microscopy and Materials Sciences Laboratory (EMMSL), B.P.1505 El M'Naouar, Oran, Algeria.
authors.forename: Dahane
authors.initials: D
authors.lastname: Kadri
mesh_terms: D005459:Fluorides / Q000737:chemistry*; D007700:Kinetics; D008163:Luminescent Measurements; D008433:Mathematics; D008962:Models, Theoretical; D017680:Potassium Compounds / Q000737:chemistry*; D013725:Terbium / Q000737:chemistry*; D013819:Thermoluminescent Dosimetry / Q000379:methods*; D015019:Yttrium / Q000737:chemistry*
chemical_list: D017680:Potassium Compounds; D013725:Terbium; D015019:Yttrium; C033320:potassium fluoride; D005459:Fluorides