Abstract
In this study, we fabricated a sapphire based fiber-optic radiation sensor. To evaluate the fiber- optic radiation sensor, we measured the spectrum and intensity of the luminescence generated from the fiber-optic radiation sensor according to the thickness of the PMMA block by irradiation of gamma rays emitted from a Co-60 source. And the result was compared with the value calculated from the formula of Lambert-Beer.
Highlights
The fiber-optic radiation sensors (FORSs) have many advantages such as good flexibility and no interferences from pressure, humidity, and electromagnetic field [1]-[3]
The plastic optical fiber used to transmit the light signals from the sensor probe produce the radiation induced luminescence (RIL)
The luminescence generated from the sensor probe and the noise signal from the plastic optical fiber are not measured simultaneously but are measured separately at the same position with the Co-60 source
Summary
The fiber-optic radiation sensors (FORSs) have many advantages such as good flexibility and no interferences from pressure, humidity, and electromagnetic field [1]-[3]. The FORSs can be used in narrow spaces with high spatial resolution due to their small sizes. Owing to these advantages, the FORSs have been developed to detect some ionizing radiations in hazardous radiation fields [4] [5]. The radiation induced luminescence (RIL) such as Cerenkov radiation and fluorescence can be frequently observed in a spent fuel storage pit. Since the luminescence is generated by interactions between the ionizing radiations and transparent media, this type of light signal can be a significant signal in some cases [6] [7].
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
