My division is focusing on developing PET diagnostic products and neutron-capturing boron cancer drungs by utilizing short-half-life medical isotopes obtained by cyclotron. More specifically, we are working on developing PET imaging probes for brain tumors and intractable cancers, which have recently been highlighted by the aging population and PET probes which can transport boron to the cancer cells where they capture neutron and kill the cancer cells. Radiological drugs are similar in the process of development to general medicine, but they have many differences in the synthetic process and biological evaluation. Thus, these drugs are contributing to the exploration of pathological mechanisms of many diseases and the development of diagnosis and treatment technologies of them. .