Field size measurement for 6XFFF and 10XFFF photon beams
Aim of Study: The purpose of this study was to report the dosimetric characteristics of the small fields in flattening filter free (FFF) beams (output measurements, profile analysis, surface...
Small field dosimetry and analysis of flattening filter free beams in ...
Aim of study: The purpose of this study was to report the dosimetric characteristics of the small fields in flattening filter free (FFF) beams (output measurements, profile analysis, surface dose and consistency) generated by medical linear accelerator and its …
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Comparison of Flattening Filter (FF) and Flattening-Filter-Free (FFF) 6
2017年6月1日 · Beam characteristics of FF (Flattening Filter) and FFF (Flattening-Filter-Free) beams were analyzed for smaller field sizes and compared with magna-field sizes.
Small‐field dosimetry of TrueBeamTM flattened and flattening …
2019年12月9日 · Here we evaluated the inter-unit variability of the flattened and flattening filter-free (FFF) beam data of multiple TrueBeam (Varian Medical Systems) linear accelerators focusing on the small-field dosimetry.
Dosimetry of a 6 MV flattening filter-free small photon beam
2021年5月11日 · PinPoint, EBT3, TLD-100, and EDGE were found to be the detector of choice for small-field output factor measurements; however, PinPoint needs special attention when used for the smallest field size (0.6 cm × 0.6 cm).
What makes a small field small, and what are the issues? What “FFF” means ... Return of the FFF beams... Once upon a time, NPL linac beams were a bit like FFF. Today, NPL determines ND,w,Q for use in beams with a conventional flattening filter. FFF beam isn’t flat – uniformity corrections needed?
FF and FFF powder for rifle and pistol - The Muzzleloading Forum
2021年10月12日 · If you develop a load with FF, understand that you'll need ~10% less FFF. If you develop a load with FFF you'll need the same 10% more of FF to achieve the same results.
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