Particle therapy . Research update . Proton minibeams could improve treatment of cancer metastases . 06 Feb 2023 Tami Freeman Dose distributions Proton minibeam radiation therapy plans for (left to right columns) metastases in the temporal lobe, the frontal lobe, the liver and the lung. The planning target volumes is outlined in yellow, organs-at-risk in other colours. (Courtesy: R Ortiz et al Med. Phys. 10.1002/mp.16203) Treating cancer patients with spa...