2017_IGRT course book

Dosimetry in a magnetic field: EBT3 films

b

a

Alanine/film Perspex phantom

Coil

Magnetic pole

B field

60 Co

Magnetic pole

Coil

1.62 m

Ilias Billas 1,3 , Hugo Bouchard 2 , Uwe Oelfke 3 and Simon Duane 1 1 Metrology in Medical Physics, National Physical Laboratory, Teddington, UK 2 Université de Montréal, Département de physique, Montréal, Canada. 3 Joint Department of Physics, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, London, UK