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

2014 Fiscal Year Final Research Report

• 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
• Keywords: 放射性セシウム / 植物 / 放射能環境汚染 / β線スキャナー

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.

Free Research Field

放射線計測学