Dose Course 2018_Flipping book

TRS-483: formalism for reference dosimetry in FFF beams

Volume averaging correction

׭ ,

Generic equation

=

OAR ,

׭ ,

Area of the projection of the sensitive volume of the chamber on a plane orthogonal to CAX

Off-axis ratio

Weighting function representing the extension of the air cavity of the ionisation chambers along CAX as a function of off-axis position

p

Length of chamber