More accurate doses of radiation for cancer patients could follow the development of a digital radiotherapy machine.rnThe ￡1.5 million clinical electron linear accelerator (linac) unveiled at the National Physical Laboratory (NPL) this month could halve the calibration process of radiotherapy equipment.rnRather than being used to treat patients directly, the UK-manufactured machine, developed by Elekta, has been built to test calibration equipment at the NPL to make sure radiotherapy machines are delivering the right levels of radiation.rnThe government-funded linac can deliver up to seven X-ray energies, which are different penetrations of radiation.
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