Small photon beam measurements using radiochromic film and Monte Carlo simulations in a water phantom.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 20378193.
- Also identified by DOI 10.1016/j.radonc.2010.03.016.
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Abstract
This work reports the use of both GafChromic EBT film immersed in a water phantom and Monte Carlo (MC) simulations for small photon beam stereotactic radiosurgery dosimetry. Circularly collimated photon beams with diameters in the 4-20 mm range of a dedicated 6 MV linear accelerator (Novalis, BrainLAB, Germany) were used to perform off-axis ratios, tissue maximum ratios and total scatter factors measurements, and MC simulations. GafChromic EBT film data show an excellent agreement with MC results (<2.7%) for all measured quantities.
Medical subject headings
- Monte Carlo Method
- Phantoms, Imaging
- Photons
- Radiometry
- Water