Outline of synchrotron X-ray microbeam irradiation system and perspective of radiobiological research using the system

Abstract

Synchrotron X-ray has a remarkable advantage in producing an X-ray microbeam due to its high directivity. We have developed an X-ray microbeam irradiation system, in which we can aim at cell nuclei with any rectangular microbeams larger than 5 micron square are available. We have already demonstrated its performance high enough to be able to obtain dose survival curves of mammalian cells. And this system is open to all the users of the Photon Factory, KEK. Characteristics of the system and perspective of the radiobiological work using it will be presented.