Hybrid oxide mixtures as γ-radiation sensors

Author

Fahim, Farah K. ; Arshak, Khalil I. ; Korostynska, Olga

Author_Institution

Dept. of Electron. & Comput. Eng., Limerick Univ., Ireland

Volume

1

fYear

2003

fDate

22-24 Oct. 2003

Firstpage

84

Abstract

Metal oxide mixtures (TeO₂/MnO and In₂O₃/SiO) in the form of planar structures deposited on screen printed thick film interdigitated electrodes were investigated for gamma-radiation dosimetry purposes. Radiation sensitive layers were deposited using thin film vapour deposition technique. Films made with In₂O₃/SiO were found to be far more conductive than their counterpart TeO₂/MnO films. All hybrid devices were exposed to a disc-type ¹³⁷Cs radiation source with an activity of 370 kBq. They showed an increase in the values of current with the increase in gamma dose up to a level of 45.4 μSv. Due to the stable dose response, these structures can be considered as a promising alternative in cost-effective personal dosimetry application.

Keywords

dosimetry; electrodes; gamma-ray detection; gamma-ray effects; indium compounds; manganese compounds; semiconductor materials; silicon compounds; tellurium compounds; thick films; vapour deposited coatings; γ-radiation sensors; ¹³⁷Cs; In₂O₃-SiO; TeO₂-MnO; disc-type ¹³⁷Cs radiation source; gamma-radiation dosimetry; hybrid device; hybrid oxide mixtures; hybrid structures; metal oxide mixtures; personal dosimetry; planar structures; radiation sensitive layers; screen printed thick film interdigitated electrodes; stable dose response; thin film vapour deposition technique; Conductive films; Dosimetry; Electrodes; Gamma rays; Optical films; Optical materials; Optical mixing; Optical sensors; Radiation detectors; Sputtering;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors, 2003. Proceedings of IEEE

Print_ISBN

0-7803-8133-5

Type

conf

DOI

10.1109/ICSENS.2003.1278901

Filename

1278901