@inproceedings{oai:repo.qst.go.jp:00052991, author = {Hirai, Masaaki and Kanai, Tatsuaki and 平井 正明 and 金井 達明}, book = {Proceedings of The Third Korea-Japan Joint Meeting on Medical Physics and The Second Asia Oceania Congress of Medical Physics}, month = {Sep}, note = {We have been developing microvolume LET counter in order to measure the three-dimensional LET distribution of the therapeutic heavy ion radiation volumes in the water phantom. With help of the technique of cathode induced carhge readout, this detector has a rectangular (box-shape) sensitive volume of which size is about 1 mm2 and 2mm (depth).}, pages = {231--232}, title = {Development of Microvolume LET Counter for Therapeutic Heavy Ion Beam}, year = {2002} }