Study on mechanism of radionuclide transfer to plants grown in artificial climate control system

• Project/Area Number: 24561041
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Nuclear engineering
• Research Institution: Osaka University
• Principal Investigator: SATO Fuminobu 大阪大学, 工学(系)研究科(研究院), 助教 (40332746)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 放射性セシウム / 植物 / 放射能環境汚染 / β線スキャナー / 放射性セシウム植物移行 / 植物工場

Outline of Final Research Achievements

We developed a time-lapse radiography system for imaging the foliar uptake of radiocesiums. Beta rays released from radiocesiums were effectively detected with a plastic scintillator plate coupled to Multi-Pixel Photon Counter (MPPC) devices and its spatial resolving power was approximately 4 mm × 6 mm (FWHM).
In a preliminary experiment, a drop of radiocesium solution was put on the upper surface of a true leaf of radish. Radiography images of radiocesium transport in the true leaf were successfully obtained with the time-lapse radiography system. It was found that the radiocesiums were transported toward the apex and the major vein of the true leaf in 3 hours.

Research Products

• [Journal Article] Development of faced-type double NaI(Tl) scintillation detector system for measurement of radioactive-cesium concentration (2015)
  • Author(s): Y. Yano, N. Zushi, F. Sato, Y. Kato, and T. Iida
  • Journal Title: Radiation Safety Management Volume: 未定
  • NAID: 130005076139
  • Peer Reviewed / Open Access
• [Journal Article] A simple method with imaging plates for examination of soil contaminated with radioactive caesium (2012)
  • Author(s): N. Zushi, Y. Ikeda, F. Sato, Yushi Kato and Toshiyuki Iida
  • Journal Title: J. Nucl. Sci. Technol。 Volume: 49 Issue: 7 Pages: 663-666
  • DOI: 10.1080/00223131.2012.693883
  • NAID: 10030702493
  • Peer Reviewed
• [Presentation] 植物用放射性セシウムβ線検出スキャナーの開発 (2014)
  • Author(s): 奥村 友紀, 崎山 朝喜, 図子 直城, 佐藤 文信, 村田 勲, 加藤 裕史, 飯田 敏行
  • Organizer: 第75回応用物理学会秋季学術講演会
  • Place of Presentation: 北海道大学、札幌キャンパス
  • Year and Date: 2014-09-13 – 2014-09-17
• [Presentation] 水耕栽培植物中のセシウム分布測定 (2012)
  • Author(s): 池田祐希、佐藤文信、加藤裕史、飯田敏行
  • Organizer: 第１１回日本放射線安全管理学会学術大会
  • Place of Presentation: 大阪大学
• [Presentation] 放射性・非放射性セシウムを用いた植物栽培実験 (2012)
  • Author(s): 池田 祐希、図子 直城、佐藤 文信、加藤 裕史、飯田 敏行
  • Organizer: 第７３回応用物理学会学術講演会
  • Place of Presentation: 愛媛大学