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Comparison of Flattening Filter (FF) and Flattening-Filter-Free (FFF) 6 MV photon beam characteristics for small field dosimetry using EGSnrc Monte Carlo code - ScienceDirect
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Changes in a diagonal 6 MV and 10 MV flattening filter-free (FFF) beam... | Download Scientific Diagram
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PDDs from flattened and flattening filter-free beams of both 6 MV and... | Download Scientific Diagram
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Chris Forrest on Twitter: "Wondered what 'FFF' mode is on your linac? This pic of the filter carousel shows Flattening Filter Free (FFF) beam mode doesn't use a cone shaped flattening filter.
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Monte Carlo investigation into feasibility and dosimetry of flat flattening filter free beams - IOPscience
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