Present and Future of The Advanced Radiation Technology Project at JAERI

Abstract

The Takasaki Radiation Chemistry Research Estabishment of Japan Atomic Energy Research Institute started the construction of the ion beam irradiation facilities to promote a new project "Advanced Radiation Technology Study using Ion Beams (ART project)". The ART project is intended to push forwarded with R&D on materials for space and nuclear fusion reactors, biotechnology and new functional materials using ion beams. Two ion accelerators (AVF cyclotron and Tandem type accelerator) are now under construction to be operational before the end of 1991, and other two accelerators (van de Graaff accelerator and ion beam implanter) are further scheduled to be installed in 1993. Some noticeable results were obtained in the preliminary studies so far. SiC which expected as semiconductor materials for space use was found to be more radiation resistant than Si. A new radiation resisant fiber reinforced plastics was developed. It retains good mechanical properties at low temperature even after the irradiation of electrons up to a dose of 100 MGy. Studies were also conducted to see the effects of ion beam irradiation on bacteria and organic thin films.
The polymerization of diyne acids by heavy ion beams was found to take place along with the improvement of molecular orientation in the film.