[en] One of the researches of The Wakasa Wan Energy Research Center is the utilization of the ion beam for science and industry. For the purpose, we constructed the accelerator facility with a 5 MV tandem accelerator, 200 MeV proton synchrotron and the beam lines dedicated to each accelerator. Recent development of the tandem accelerator and its beam lines has been for the ion beam analyses. The analysis of the light element such as hydrogen and lithium has been improved. Microbeam is utilized for the element analysis. A proton beam with an energy of 200 MeV from the synchrotron has a range of almost thickness of the human body, therefore, the clinical study of the cancer therapy had been performed by 2009. The irradiation of the biological target has been researched. The energy of 200 MeV is also near the mode of the energy distribution of the solar cosmic ray. The beam has been used for the radiation-resistant performance of the equipment in the spacecraft. (author)