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Oliver Jäkel
Medical Physics
B Oborn, Med. Phys. 2015
Dose calculation incl. MR specific fringe fields
Beam scanning important to correct online for the effects!
To do: Simulation including scanning magnets
No optimization yet
Field rotation Field deflection
p(90 MeV, B=0) 1T inline 1T perp.
Dr. Aswin L. Hoffmann I HZDR I Institute of Radiooncology I
aswin.hoffmann@hzdr.deMember of the Helmholtz Association
Page 22
M
Y
M
C
E
= 140 MeV
B
= 1 T
Measurement setup
Y
= yoke
M
= permanent magnets (1 T)
F
= film in PMMA slab phantom
C
= collimator (
5 mm)
F
Monte Carlo simulation
EBT3 film measurement
Fast beam trajectory prediction in heterogeneous media
Experimental proof‐of‐principle: First „
in magneto“
film dosimetry
in slab phantom
Hoffmann
et al
., HZDR at OncoRay (Dresden)