Dependence of Luminescence Lifetimes on Radiation Absorbed Dose from Quartz using a Time-Resolved Based Pulsing System

Solomon Akpore Uriri; Kingsley Ngozi Nwakaji; Ochuko J. Abeokuta; Ferdinand Nnamdi Okoh

doi:10.62292/njtep.v3i1.2025.68

Authors

Solomon Akpore Uriri Delta State University of Science and Technology, Ozoro, Delta State
Kingsley Ngozi Nwakaji Delta State University of Science and Technology, Ozoro, Nigeria
Ochuko J. Abeokuta Delta State University of Science and Technology, Ozoro, Nigeria
Ferdinand Nnamdi Okoh Delta State University of Science and Technology, Ozoro, Nigeria

DOI:

https://doi.org/10.62292/njtep.v3i1.2025.68

Keywords:

Absorbed dose, time-resolved luminescence, quartz, pulsing system, Lifetime

Abstract

Time-resolved optical stimulation of luminescence is an important technique that is well established for the study of dosimetric materials including quartz, carbon doped aluminium oxide, feldspar, etc. These materials, particularly quartz, Is a material of interest in dosimetry. Time resolved optical stimulation separate in time the stimulation and emission of luminescence. The luminescence is obtained from the quartz sample using a brief light pulse and the emission of the luminescence is monitored. The aim is to investigate the influence of radiation dose on luminescence lifetimes in quartz using a more cost effective and easy to design light emitting diode pulsing system. Here, a new pulsing system based on light emitting diode is designed and is used to study the dependence of luminescence lifetimes on radiation dose in quartz. The Luminescence lifetimes measured between 5 and 200 Gy beta dose were constant at about 42.0 ± 1.3 µs. The luminescence lifetime is independent of dose because most of the luminescence is emitted from LH centres which would not have been sufficiently emptied by annealing at 500 ⁰C prior to irradiation.

Author Biographies

Kingsley Ngozi Nwakaji, Delta State University of Science and Technology, Ozoro, Nigeria

Department of Geology

Ochuko J. Abeokuta, Delta State University of Science and Technology, Ozoro, Nigeria

Department of Chemistry

Ferdinand Nnamdi Okoh, Delta State University of Science and Technology, Ozoro, Nigeria

Biochemistry

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