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  • 1 Japan Atomic Energy Research Institute (JAERI) Department of Radioisotopes 370-12 Takasaki, Gunma Japan
  • | 2 JAERI Department of Chemistry and Fuel Research 370-12 Takasaki, Gunma Japan
  • | 3 JAERI Department of Radiation Research for Environment and Resources 370-12 Takasaki, Gunma Japan
  • | 4 Hamamatsu Photonics Co. Central Research Lab. 434 Hamakita, Shizuoka Japan
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The positron emitters11C,13N and18F and their labeled compounds have been produced for studies on plants using a newly developed positron emitting tracer imaging system. Although this system covers, at present, a limited area in a plant, the distribution of the positron emitter fed into the plant can be visualized dynamically. Further development of positron-emitter-labeled compounds is expected to elucidate the physiological function of plants in vivo.