ACHIEVEMENT OF LOW-ENERGY HEAVY-ION BIOLOGY

Generally,the interaction of low-energy ions with matter used to attract less attention than that of high-energy ions.In the 1980s,when the study of ion beam modification of materials was prosperous both at home and abroad,a new biological effect caused by ion beam implantation was discovered by Prof. Yu Zengliang and his postgraduates at CAS institute of Plasma Physics.In their research into the interaction between low energy ions and organism,they put forward and developed some new concepts,such as the bio damage model of mass-deposition and cell itching processing with ion beam.And they applied those principles in breeding new cultivars and made sig-