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Medical linac full beam line

Electron Gun

Accelerator

Target

Primary

collimator

Jaws (X,Y)

MLC

Flattening

filter

RF Power

What parts of the beam line

should move to create a moving

beam?

Dynamics of breathing/tracking:

-Frequencies up to 30 Hz

-Amplitudes of a few centimeters

-Sub-milimeter accuracy

Too heavy !!! (>>1000kg)

Loose some of that weight

-by compact design?

-by omitting some heavy components?

A moving treatment beam