Boron neutron capture therapy (BNCT) is a targeted radiotherapy technique that involves the accumulation of boron-10 in tumor cells followed by irradiation with low-energy neutrons, causing the boron atoms to capture neutrons and undergo nuclear reactions that destroy the cancer cells. This method allows for selective destruction of malignant cells while sparing surrounding healthy tissue, making it a promising treatment for certain types of cancer, particularly brain tumors and head and neck cancers.