Heavy-ion microbeam system of QST-Takasaki

Target irradiation of biological material with heavy-ion microbeam is a useful means for analyzing the mechanisms underlying the effects of heavy-ion irradiation on cells and individuals. In QST-Takasaki, there are two heavy-ion microbeam systems, collimating microbeam and focusing microbeam systems. They are installed on the vertical beam-lines of AVF-cyclotron for analyzing heavy-ion radiation effects by utilizing local irradiation of the various biological targets. In this review, an outline of focusing heavy-ion microbeam system as well as the practical information for experiments using collimating heavy-ion microbeam system is described. (author)