title: Thermally stimulated luminescence glow curve structure of β-irradiated CaB4O7:Dy.
abstract: Thermally stimulated luminescence glow curves of CaB4O7:Dy samples after β-irradiation showed glow peaks at ~335, 530 and 675 K, with a heating rate of 2 K/s. The main peak at 530 K was analyzed using the Tmax-Tstop method and was found to be composed of at least five overlapping glow peaks. A curve-fitting program was used to perform computerized glow curve deconvolution (CGCD) analysis of the complex peak of the dosimetric material of interest. The kinetic parameters, namely activation energy (E) and frequency factor (s), associated with the main glow peak of CaB4O7:Dy at 520 K were evaluated using peak shape (PS) and isothermal luminescence decay (ILD) methods. In addition, the kinetics was determined to be first order (b =1) by applying the additive dose method. The activation energies and frequency factors obtained using PS and ILD methods are calculated to be 0.72 and 0.72 eV and 8.76 × 10(5) and 1.44 × 10(6) /s, respectively.
authors.affiliation: Ege University, Institute of Nuclear Sciences, 35100, Bornova- Izmir, Turkey.
authors.forename: Aycan
authors.initials: A
authors.lastname: Akın
authors.affiliation: Ege University, Institute of Nuclear Sciences, 35100, Bornova- Izmir, Turkey.
authors.forename: Elçin
authors.initials: E
authors.lastname: Ekdal
authors.affiliation: Celal Bayar University, Faculty of Art and Science, Physics Department, 45100, Muradiye-Manisa, Turkey.
authors.forename: Yasemin Tuncer
authors.initials: YT
authors.lastname: Arslanlar
authors.affiliation: Celal Bayar University, Faculty of Art and Science, Physics Department, 45100, Muradiye-Manisa, Turkey.
authors.forename: Mehmet
authors.initials: M
authors.lastname: Ayvacıklı
authors.affiliation: Ege University, Institute of Nuclear Sciences, 35100, Bornova- Izmir, Turkey.
authors.forename: Turgay
authors.initials: T
authors.lastname: Karalı
authors.affiliation: Celal Bayar University, Faculty of Art and Science, Physics Department, 45100, Muradiye-Manisa, Turkey.|Physics Department, Jazan University, P.O. Box 114, 45142, Jazan, Kingdom of Saudi Arabia.
authors.forename: Nurdoğan
authors.initials: N
authors.lastname: Can
mesh_terms: D001610:Beta Particles; D004419:Dysprosium / Q000737:chemistry*; D007700:Kinetics; D049449:Luminescence; D049408:Luminescent Agents / Q000737:chemistry*; D008163:Luminescent Measurements / Q000379:methods
chemical_list: D049408:Luminescent Agents; D004419:Dysprosium
keywords: calcium borate; kinetic parameter; thermoluminescence dosimeter