Sr/Y under gamma-ray field using the liquid light guide Cerenkov counterIn this presentation, we will introduce a method for selectively detecting the Sr/Y distribution in a gamma-ray environment using a liquid light guide, which is an optical fiber with a liquid core material. This method applies the aforementioned time-of-flight analysis to the liquid light guide to determine the location of radioactive materials. Here, the Cerenkov radiation from Sr/Y is selectively detected by using the reflection at the light guide's end face, caused by the radiation energy dependence of the Cerenkov radiation angle. The Cerenkov radiation from Sr/Y is characterized by a larger emission angle and a smaller emission angle for the Cerenkov radiation from gamma-ray emitting nuclides. Therefore, the latter has a greater proportion of reflected components at the light guide's end face compared to the former. Utilizing this feature, the in-situ radioactivity distribution of Sr/Y can be detected.
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: | English |
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: | 2023/09 |
Location (city) |
: | Kurchatov |
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: | Kazakhstan |
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Keywords |
: | 福島第一原子力発電所事故; Fukushima Daiichi Nuclear Power Station Accident; Liquid light guide; Time-of-Flight; Cherenkov Radiation |
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