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Radiation protection research for radioactive natural metal ores

Research Project

Project/Area Number 17KK0162
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research)

Allocation TypeMulti-year Fund
Research Field Environmental policy and social systems
Research InstitutionNational Institutes for Quantum Science and Technology (2018-2023)
Hirosaki University (2017)

Principal Investigator

Iwaoka Kazuki  国立研究開発法人量子科学技術研究開発機構, 放射線医学研究所 放射線規制科学研究部, 主幹研究員 (70466051)

Project Period (FY) 2018 – 2023
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Keywords放射線被ばく / 放射線防護 / 放射性物質 / 線量評価
Outline of Final Research Achievements

Natural resources contain naturally occurring radioactive materials, and they could cause external and internal exposure. This study was conducted in collaboration with a research institute in the Philippines to investigate the current state of radiation exposure to metal ores. The radioactivity concentrations of some metal ores (allanite ores) collected in the Philippines were higher than the international level (1 Bq/g for U-238 and Th-232 series).

Academic Significance and Societal Importance of the Research Achievements

アジアには豊富な金属資源が眠っており、様々な先進国が支援して開発が進められている一方で、アジアの途上国ではそれによる放射線被ばくについて安全を守る思想が十分に培われていない現状がある。国際的な問題をより喫緊の問題として抱えるアジア地域において現地機関と共同研究を行い、得られる成果を全世界の金属鉱石の安全な利用に資することにより、アジアのみならず世界の金属鉱石による健康被害の予防に繋げることができる。

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (25 results)

All 2023 2022 2021 2020 2019 2018

All Int'l Joint Research (1 results) Journal Article (8 results) (of which Int'l Joint Research: 8 results,  Open Access: 1 results,  Peer Reviewed: 6 results) Presentation (16 results) (of which Int'l Joint Research: 5 results)

  • [Int'l Joint Research] フィリピン科学技術省フィリピン原子力研究所(フィリピン)2018

    • Related Report
      2023 Annual Research Report
  • [Journal Article] NORM waste disposal options in the Philippines2022

    • Author(s)
      L. Palad, C. Mendoza, C. Feliciano, J. Olivares, K. IWAOKA
    • Journal Title

      Proceedings Series IAEA: Management of Naturally Occurring Radioactive Material (NORM) in Industry

      Volume: Supplementary IAEA-CN-206 Pages: 1-4

    • Related Report
      2022 Research-status Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Evaluation of the Influence of Thoron on Portable Radon Measurement Devices2021

    • Author(s)
      Kazuki Iwaoka, Ryoju Negami, Yuki Tamakuma, Masahiro Hosoda, Lorna Jean H. Palad, Shinji Tokonami, Chitho P. Feliciano, Reiko Kanda
    • Journal Title

      Philippine Journal of Science

      Volume: 150 Pages: 257-261

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Measurement of ambient gamma dose rate in Metro Manila, Philippines, using a portable NaI(TI) scintillation survey meter2020

    • Author(s)
      Rosario R. Encabo, Paolo Tristan F. Cruz, Antonio C. Bonga III, Christian L. Dela Sada, Vanessa J. Omandam, Juanario U. Olivares, Kazuki Iwaoka, Chitho P. Feliciano
    • Journal Title

      Environmental Monitoring and Assessment

      Volume: 192 Pages: 400-400

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Natural radiation exposure in geothermal power plant in the Philippines2020

    • Author(s)
      Kazuki Iwaoka, Lorna Jean H. Palad, Christopher O. Mendoza, Eliza B. Enriquez, Ryan Joseph Aniago, Teofilo Y. Garcia, Masahiro Hosoda, Shinji Tokonami, Chitho P. Feliciano, Reiko Kanda
    • Journal Title

      Proceedings of 5th International Conference on Environmental Radioactivity

      Volume: 1 Pages: 39-41

    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Journal Article] MEASUREMENT OF AMBIENT GAMMA DOSE RATES ALONG TWO INDUSTRIAL FACILITIES IN LEYTE ISLAND, PHILIPPINES2019

    • Author(s)
      L. Palad, C. Mendoza, F. Delacruz, J. Olivares, K. Iwaoka
    • Journal Title

      Radiation Protection Dosimetry

      Volume: 184 Pages: 351-354

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Absorbed dose rates in air along the roads in Quezon City, Philippines2019

    • Author(s)
      Kazuki Iwaoka, Lorna Jean H. Palad, Christopher O. Mendoza, Masahiro Hosoda, Paolo Tristan F. Cruz, Eliza B. Enriquez, Ryan Joseph Aniago, Shinji Tokonami, Reiko Kanda
    • Journal Title

      Philippine Journal of Science

      Volume: 148 Pages: 395-399

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Preliminary Radiological Survey on High Rare-earth Containing Area in San Vicente, Philippines2019

    • Author(s)
      Kazuki Iwaoka, Lorna Jean H. Palad, Christopher O. Mendoza, Masahiro Hosoda, Paolo Tristan F. Cruz, Eliza B. Enriquez, Ryan Joseph Aniago, Shinji Tokonami, Reiko Kanda
    • Journal Title

      Philippine Journal of Science

      Volume: 148 Pages: 501-504

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Preliminary Development of Thoron Exposure System in the Philippines2018

    • Author(s)
      Kazuki Iwaoka, Lorna Jean H. Palad, Eliza B. Enriquez, Fe M. dela Cruz, Christopher O. Mendoza, Masahiro Hosoda, Shinji Tokonami, Juanario U. Olivares, Ryan Joseph Aniago, Christian L. dela Sada
    • Journal Title

      Science Diliman

      Volume: 30 Pages: 5-13

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Geometical efficiency for the scintillation cell in radon and thoron measurement2023

    • Author(s)
      Kazuki Iwaoka et al.
    • Organizer
      International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Radiation Monitoring of NORM2023

    • Author(s)
      Kazuki Iwaoka
    • Organizer
      National Training Course on Environmental Radioactivity Monitoring 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] 国内における NORM被ばく防護検討のためのデータ調査2022

    • Author(s)
      富坂 侑斗, 矢島 千秋, 岩岡 和輝, 神田 玲子
    • Organizer
      第59回アイソトープ・放射線研究発表会
    • Related Report
      2022 Research-status Report
  • [Presentation] Current status of comprehensive survey on naturally occurring radioactive material2021

    • Author(s)
      Kazuki Iwaoka wt al.
    • Organizer
      The 64th Annual Meeting of the Japanese Radiation Research Society
    • Related Report
      2021 Research-status Report
  • [Presentation] Current status of NORM survey in Japan2021

    • Author(s)
      Kazuki Iwaoka
    • Organizer
      2021 FNCA Workshop on Radiation Safety and Radioactive Waste Management Project
    • Related Report
      2021 Research-status Report
  • [Presentation] 大気中放射性核種測定装置のトロンガスの影響(キックオフ)2020

    • Author(s)
      岩岡和輝
    • Organizer
      2020年度放射能環境動態・影響評価ネットワーク共同研究拠点キックオフミーティング
    • Related Report
      2020 Research-status Report
  • [Presentation] NORM waste disposal options in the Philippines2020

    • Author(s)
      Lorna Jean H Palad, Christopher O Mendoza, Chitho P Feliciano, Juanario Y Olivares, Kazuki Iwaoka
    • Organizer
      International Conference on the Management of Naturally Occurring Radioactive Material (NORM) in Industry (NORM 2020)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 大気中放射性核種測定装置のトロンガスの影響(成果)2020

    • Author(s)
      岩岡和輝
    • Organizer
      2020年度放射能環境動態・影響評価ネットワーク共同研究拠点報告会
    • Related Report
      2020 Research-status Report
  • [Presentation] NORMの放射能濃度調査2020

    • Author(s)
      岩岡和輝
    • Organizer
      令和2年放射線防護に関する専門家意見交換会
    • Related Report
      2019 Research-status Report
  • [Presentation] Issues on NORM in Japan2019

    • Author(s)
      Kazuki Iwaoka
    • Organizer
      2019 National Training Course on Environmental Radioactivity Monitoring
    • Related Report
      2019 Research-status Report
  • [Presentation] Radiation survey of fossil fuel in the Philippines2019

    • Author(s)
      Kazuki Iwaoka, Eliza B. Enriquez, Teofilo Y. Garcia, Ryan Joseph Aniago, Lorna Jean H. Palad, Masahiro Hosoda, Shinji Tokonami, Hidenori Yonehara, Chitho P. Feliciano, Reiko Kanda
    • Organizer
      5th International Conference on Environmental Radioactivity (ENVIRA2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Natural radiation exposure in geothermal power plant in the Philippines2019

    • Author(s)
      Kazuki Iwaoka, Lorna Jean H. Palad, Christopher O. Mendoza, Eliza B. Enriquez, Ryan Joseph Aniago, Teofilo Y. Garcia, Masahiro Hosoda, Shinji Tokonami, Chitho P. Feliciano, Reiko Kanda
    • Organizer
      5th International Conference on Environmental Radioactivity (ENVIRA2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 弘前大学のトロンガス曝露装置開発技術の活用2018

    • Author(s)
      岩岡和輝、LJ Parad、E Enriquez、F dela Cruz、細田正洋、床次眞司
    • Organizer
      日本保健物理学会第51回研究発表会
    • Related Report
      2018 Research-status Report
  • [Presentation] 測定環境に応じた空間線量率の核種別寄与比の導出―応答行列とモンテカルロ計算の活用2018

    • Author(s)
      岩岡和輝、細田正洋、床次眞司
    • Organizer
      日本保健物理学会第51回研究発表会
    • Related Report
      2018 Research-status Report
  • [Presentation] Absorbed dose rates in air along two industrial facilities in Leyte Island, Philippines2018

    • Author(s)
      L. Palad, C. Mendoza, F. Delacruz, J. Olivares, K. Iwaoka
    • Organizer
      9th International Conference on High Level Environmental Radiation Areas- For Understanding Chronic Low-Dose-Rate Radiation Exposure Health Effectsand Social Impacts (ICHLERA 2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 新たな高線量地域―フィリピン共和国サンビセンテにおける初期調査2018

    • Author(s)
      (73)岩岡和輝、ローナジェーンパラド、クリストファーメンドサ、フェデラクルズ、細田正洋、床次眞司、エリザエンリケス、神田玲子
    • Organizer
      日本放射線影響学会第61回大会, 長崎, 2018.11
    • Related Report
      2018 Research-status Report

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Published: 2018-01-25   Modified: 2025-01-30  

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