Particle Therapy 2017

some differences…

cyclotron in development in development

synchrotron

Carbon ions

easy easy

Change particle Time structure Fast E-scanning Activation degrader

continuous (SC:pulsed)

dead time next spill

degrader

to be shielded

no

Intensity

“any ”(SC:low), adjustable limited, per spill

Intensity stability

3-5%

15-20%

Size ∅

3.5 - 5 m (SC<2)

6-8 m ( C: 25 m)

Scattering

ok

ok ok

ok (SC: >2 pulses/spot)

Spot scanning

Marco Schippers, Beam production techniques for hadron therapy Fast continuous scanning ok (SC: no)

difficult

ESTRO-course, Esen, March 6-10, 2017 33