Thermoluminescence studies of Nd doped Bi4Ge3O12 crystals irradiated by UV and beta sources.
Thermoluminescence (TL) glow curves of pure and rare earth doped bismuth germanate (BGO) were investigated under UV and beta radiation. The glow curves of pure BGO crystal present different patterns for both kinds of radiation. The TL glow curves of BGO crystals doped with Nd ions are similar to that of pure BGO under UV radiation. The kinetic parameters, kinetic order (b), activation energy (E) and frequency factor (s) of the TL glow curves of pure BGO crystal have been determined by peak shape method. Activation energies of 3 peaks obtained by PS were found to be 1.81, 1.15 and 1.78, respectively.
Celal Bayar University, Faculty of Arts and Sciences, Department of Physics, Muradiye, Manisa, Turkey.
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Y
Karabulut
Nigde University, Faculty of Arts and Sciences, Physics Department, Nigde, Turkey.
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A
Canimoglu
Ege University, Institute of Nuclear Sciences, 35100 Bornova, Izmir, Turkey.
E
E
Ekdal
Celal Bayar University, Faculty of Arts and Sciences, Department of Physics, Muradiye, Manisa, Turkey.
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M
Ayvacikli
Celal Bayar University, Faculty of Arts and Sciences, Department of Physics, Muradiye, Manisa, Turkey; Physics Department, Jazan University, P.O. Box 114, Jazan, Saudi Arabia. Electronic address: cannurdogan@yahoo.com.
N
N
Can
Ege University, Institute of Nuclear Sciences, 35100 Bornova, Izmir, Turkey.
T
T
Karali
Bismuth Germanate; Kinetic parameters; Peak shape method; Rare earth; Thermoluminescence