Investigating the Radiation Shielding Properties of Iron Oxide-enhanced Heavy Concrete through Gamma Transmission Method

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2024/10/01

タイトル(英語): Investigating the Radiation Shielding Properties of Iron Oxide-enhanced Heavy Concrete through Gamma Transmission Method

著者名: Le Hoang Minh (Department of Nuclear Physics, Faculty of Physics and Engineering Physics, University of Science), Dang Van Hau (Department of Nuclear Physics, Faculty of Physics and Engineering Physics, US-VNU-HCMC), Nguyen Duy Khai (Department of Nuclear

著者名(英語): Le Hoang Minh (Department of Nuclear Physics, Faculty of Physics and Engineering Physics, University of Science), Dang Van Hau (Department of Nuclear Physics, Faculty of Physics and Engineering Physics, US-VNU-HCMC), Nguyen Duy Khai (Department of Nuclear Physics, Faculty of Physics and Engineering Physics, University of Science), Phan Nguyen Hoang Long (Department of Nuclear Physics, Faculty of Physics and Engineering Physics, University of Science, ), Tran Thi My Duyen (Department of Nuclear Physics, Faculty of Physics and Engineering Physics, University of Science), Nguyen Thi Truc Linh (Nuclear Technique Laboratory, University of Science), Huynh Dinh Chuong (Nuclear Technique Laboratory, University of Science), Tran Thien Thanh (Department of Nuclear Physics, Faculty of Physics and Engineering Physics, University of Science)

キーワード: radiation shielding，linear attenuation coefficients，gamma transmission measurement，heavy concrete

要約(英語): This study investigates the radiation shielding properties of construction materials, with a focus on iron oxide (Fe2O3)-enhanced heavy concrete. It covers a range of Fe2O3 concentrations from 0% to 12.9% in concrete formulations and uses M200-grade standard samples as references. The study observes a linear increase in sample density as Fe2O3 content rises. A gamma transmission measurement system utilizing NaI(Tl) detectors assesses shielding effectiveness. It measures linear attenuation coefficients for concrete samples at 59.54 keV (241Am), 661.7 keV (137Cs), and 1332 keV (60Co) energy levels. Precise measurements result from careful calibration of detectors and radiation sources, ensuring a focused gamma ray beam. The findings establish a direct correlation between linear attenuation coefficients and Fe2O3 content at each energy level. Notably, samples with the highest Fe2O3 concentration exhibit significant increases in attenuation coefficients, such as 19.6% (59.54 keV), 7.75% (661.7 keV), and 13.5% (1332 keV), compared to standard samples. These insights suggest the potential use of iron oxide-enhanced heavy concrete as effective radiation shielding in construction applications.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.144 No.10 （2024） 特集：The 4th International Conference on Engineering Physics, MEMS-Biosensors and Applications (4ICEBA2023)

本誌掲載ページ: 290-294 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejsmas/144/10/144_290/_article/-char/ja/