<!– –> In experiments conducted at the CERN CLEAR beamline, an electron beam passes through two sets of triplet electromagnetic quadrupoles and is focused inside a water phantom. (Courtesy: the University of Strathclyde)
An international research team has developed a pioneering radiotherapy technique that uses very high-energy electron (VHEE) beams to target tumours precisely. Proposed as an alternative to X-ray photons for radiation therapy, VHEE beams penetrate deep into tissue, but can also overexpose healthy tissue.
In this study, published in Nature Communications Physics, the researchers demonstrate how they overcame this problem by using a large aperture electromagnetic lens to focus a VHEE beam to an extremely small spot in