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A New application technique of a position-sensitive liquid light guide Cerenkov counter for the simultaneous position detection of $$^{90}$$Sr/$$^{90}$$Y and $$^{137}$$Cs radioactivity

$$^{90}$$Sr/$$^{90}$$Yおよび$$^{137}$$Cs放射能同時位置検出を目指した位置敏感型液体ライトガイドチェレンコフカウンターの新しい応用技術

寺阪 祐太   ; 瓜谷 章*

Terasaka, Yuta; Uritani, Akira*

A new application of a position-sensitive liquid light guide Cerenkov counter for the simultaneous position detection of $$^{90}$$Sr/$$^{90}$$Y and $$^{137}$$Cs radioactivity in a gamma-ray-dominant environment is proposed. $$beta$$-emitting $$^{90}$$Sr/$$^{90}$$Y and $$gamma$$-emitting $$^{137}$$Cs radioactive point sources were measured using a position-sensitive liquid light guide based on the time-of-flight (TOF) method. We found a clear difference in the count rate ratio between the source position peak and reflection peak of the position histogram. Moreover, simultaneous measurements of the radioactive point sources were performed. The results suggest that the source position and activity of $$^{90}$$Sr/$$^{90}$$Y and $$^{137}$$Cs can be simultaneously determined based on the count rate ratio of the source position peak and the reflection peak.

使用言語

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English

掲載資料名

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Nuclear Instruments and Methods in Physics Research A

巻

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1049

号

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ページ数

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p.168071_1 - 168071_7

発行年月

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2023/04

発表会議名

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開催年月

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開催都市

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開催国

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キーワード

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福島第一原子力発電所事故; Fukushima Daiichi Nuclear Power Station Accident; Liquid light guide; Cherenkov photons; Time-of-Flight; strontium-90; cesium-137; Unfolding

特許データ

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PDF

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論文URL

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https://doi.org/10.1016/j.nima.2023.168071

研究データの公開先DOI

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使用施設

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広報プレスリリース

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論文解説記事
(成果普及情報誌)

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受委託・共同研究相手機関

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名古屋大学

Access

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- Accesses

InCites™

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パーセンタイル：0.02

分野：Instruments & Instrumentation

Altmetrics

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