1 results match your criteria: "Humanitas IRCCS Research Hospital and Cancer Center[Affiliation]"
Evaluation of ion recombination and polarity effect on photon depth dose measurements using mini- and micro-ion chamber.
J Appl Clin Med Phys
January 2025
Radiotherapy and Radiosurgery Dept, Humanitas IRCCS Research Hospital and Cancer Center, Milan-Rozzano, Italy.
Purpose: To investigate the effect of ion recombination ( ) and polarity ( ) correction factors on percentage depth dose (PDD) curves for three ion chambers, using flat and flattening filter free (FFF) beams, across different broad field sizes. A method to assess these effects and their corresponding corrections is proposed.
Methods: and were evaluated following the IAEA TRS-398 protocol for three ion chambers: PTW Semiflex-3D-31021, PinPoint-3D-31022, and Semiflex-31010.