Annual report of Tokyo Metropolitan Isotope Research Center, 1990

Since the foundation in July, 1959, for promoting the industries in Tokyo Metropolis and improving the welfare of people through the utilization of isotopes and radiations, this Research Center has exerted efforts consistently for attaining the purpose. Namely it has carried out the research and test on the utilization of isotopes and radiations, the investigation, research and guidance on the prevention of radiation injuries, the safety management and technical development accompanying isotope and radiation utilization, and the business of technical guidance and consultation, irradiation and inspection by request and various pervasion works. In fiscal year 1990, the ordinary researches on the industrial utilization, biological utilization, urban problems, radiation protection problems and others were carried out, the investigation of the effect that irradiation exerts to superconducting ceramics was begun, and the improvement of large quantity multiplication process and the development of cell culture technology were conducted as the research of biotechnology. The organization of the Research Center is shown. The budget and the gists of the research and investigation activities are reported. (K.I.)