Radio-Optically- and Thermally Stimulated Luminescence of Zn(BO2)2:Tb3+ exposed to Ionizing Radiation

Abstract

The optical absorption of zinc tetraborate at different concentrations of the terbium impurity (0, 0.5, 1, 2, 4, 8 mol%) was analyzed. The radioluminescence (RL) emission spectra was obtained after beta irradiation of a 90Sr/90Y source. The RL spectrum showed the characteristics bands of Tb3+ with two main emissions at 489 nm and 546 nm which corresponding to the5D4 →7F6 and 5D4 →7F5 transitions respectively in this ion. The OSL and TL characteristics have been analyzed. The stimulation blue light (497 nm) of a diode laser at 500 mA was used to bleach the thermoluminescent (TL) signals obtained with 5Gy of 60Co source. The two main glow peaks (79 and 161 °C) are sensitives under 497 nm stimulation, and they were shifted to higher temperature values and faded their TL intensities. Similar behavior of TL glow curves before and after OSL stimulation with blue light was observed when the samples were exposed to 30 Gy gamma dose of 137Cs irradiator. The OSL signal response was linear with the dose range of 1-10 Gy and increased their response up to 200 Gy gamma dose. The OSL shows a bleaching sensitive shallow traps and diminishing the intensity of the TL glow curves remaining a complex traps distribution. The RL, TL and OSL properties were investigated in Zn(BO2)2:Tb3+ phosphor.

Authors and Affiliations

E. Cruz-Zaragoza, G Cedillo Del Rosario, M Garcia Hipolito, J Marcazzó, J. M. Hernandez A, E Camarillo, H. Murrieta S

Keywords

Related Articles

Characterization of Zinc Nanoferrite Doped HPMC Polymers Using X-Ray Diffraction

HPMC Polymer composites were prepared by doping various concentrations of Zinc ferrite nanoparticles using solution casting method. These polymer composites were characterized using X-Ray Diffraction and conductivity mea...

The Three-Body Structure of 2n and 2p Halo Nuclei

A three-cluster model developed for ternary fission studies has been applied for the first time to study the three-body structure of 2n and2p halo nuclei. For the experimentally known 2n, 2p halo nuclei, all possible ter...

Effect of the Target Size in the Calculation of the Energy Deposited Using PENELOPE Code

The specific and linear energy was calculated in target sizes of 10 µm, 5 µm, 1 µm, 60 nm, 40nm and 20 nm by taking into account the contribution of the primary photon beams and the electrons generated by them in LiF: Mg...

Annihilation of Dipolar Dark Matter: χχ→γγ

In this work we study the annihilation of dark matter, considering it as a neutral particle with magnetic and/or electric moments not null. The calculation of the effective section of the process χχbar→γγ → is made start...

Analysis of the Energy Deposit in the Air by Radiation of Alpha Particles Emitted by the Water of a Spring Through the Geant4 Software.

This work presents the development of an analysis of the potential radiological risk generated by alpha particles emitted by radon-222, content in a spring water, for the population that usually swims in the place and fo...

Download PDF file
  • EP ID EP595587
  • DOI 10.15415/jnp.2017.51016
  • Views 264
  • Downloads 0

How To Cite

E. Cruz-Zaragoza, G Cedillo Del Rosario, M Garcia Hipolito, J Marcazzó, J. M. Hernandez A, E Camarillo, H. Murrieta S (2017). Radio-Optically- and Thermally Stimulated Luminescence of Zn(BO2)2:Tb3+ exposed to Ionizing Radiation. Journal of Nuclear Physics, Material Sciences, Radiation and Applications, 5(1), 169-178. https://europub.co.uk/articles/-A-595587