Intrafractional motion during proton beam scanning.

  title={Intrafractional motion during proton beam scanning.},
  author={Jamil Lambert and Natalka Suchowerska and David R. McKenzie and Michael Jackson},
  journal={Physics in medicine and biology},
  volume={50 20},
Patient and internal organ motion during treatment with a scanned proton beam can introduce unplanned heterogeneities in the dose distribution throughout the irradiated volume. With static beam techniques, a margin around the target volume is added to compensate for patient and organ motion. This margin may not provide the solution with dynamic beam scanning. Intrafractional motion parallel and perpendicular to the beam axis is studied using two different scanning methods on a cubic water… CONTINUE READING

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