Towards development of radioluminescence sensors | David Bradley | NCP21

Описание: The talk was delivered at the National Conference on Physics - 2021 (6 -7 August 2021) organized by Bangladesh Physical Society.

Title: Towards development of radioluminescence sensors
Speaker: David Bradley
Affiliation: Centre for Applied Physics and Radiation Technologies, Sunway University, UK
Date: 07 August 2021

Abstract: Up until recent times our studies of such devices have largely focused on developing radioluminescence (RL) systems that allow for dosimetry of medical irradiating apparatus, with investigations concerning doped silica optical fibers and time-resolved radiation dosimetry. Away from pulsed sources of radiation and focusing ithin the low dose regime of naturally occurring radioactive materials (NORM), presently available devices have a number of operational limitations, including an inability to conduct investigations of hard to access locations, also an inability to operate in aqueous environments. Characterization has been made of an optical fiber system based on a LYSO:Ce scintillator, compared against Geiger Muller (GM) device, tested thus far using monazite and xenotime at in-contact dose rates down to 20 μGy/h. With measurements comparable to that of the GM counter, and with intrinsically safe RL remote capabilities, the study points to RL potential in a variety of industrial scenarios.