The purpose of this paper is to establish curves of relation- ships between radiation dose and chromosome aberrations induced by heavy ions in human peripheral blood lymphocytes,and try to provide an easy and reliable biodosimeter protocol for radiation ac- cidents involving high-LET exposure. We irradiated the human The purpose of this paper is to establish curves of relation- ships between radiation dose and chromosome aberrations induced by heavy ions in human peripheral blood lymphocytes, and try to provide an easy and reliable biodosimeter protocol for radiation ac- cidents involving high-LET exposure. We irradiated the human