The full form of HIMAC is Heavy Ion Medical Accelerator in Chiba.
HIMAC is a heavy ion accelerator facility located in Chiba, Japan. It was initially designed for carbon-ion radiation therapy to treat cancer. Since 1994, HIMAC has also served as a collaborative research platform for medical, physical, chemical, and biological heavy-ion research projects, including space radiation research. The primary application remains carbon-ion therapy, offering a targeted approach to cancer treatment.