Difference between revisions of "Pencil beam"
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Latest revision as of 17:46, 12 August 2021
A beam of radiant energy concentrated in an approximately conical or cylindrical portion of space of relatively small diameter. Dose is delivered by superposing ‘pencil beams’ from an accelerator on the target by controlling the beam path three-dimensionally.
(adapted from ICRP Publication 127, 2014)
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