Cyclotron (292 KB)
The Cyclotron is a key component of Varian proton therapy delivery.
Proton System - Energy Slit (3 MB)
The energy slit is a proton beam modification device for selecting the proton energy spectrum to be used. The energy spectrum of protons entering the treatment delivery nozzle affects the dose uniformity reaching a targeted tumor.
Proton System - Degrader (3.1 MB)
The degrader is an apparatus for adjusting the energy of a proton beam between 70 MeV and 245 MeV, in order to control the depth of penetration to match the depth of a targeted tumor.
First Girder Behind Cyclotron (3.5 MB)
Between the cyclotron, where protons are generated, and the treatment room, there is a long beam line comprising a sequence of electromagnets affixed to structural girders. Protons are transported along the beamline by the electromagnets, which curve, focus, and direct the protons to the treatment room. This photo shows the first beamline segment, with three of the electromagnets sitting on a structural girder.
Beam Line (6.5 MB)
Technician checking beam line components
Cyclotron on Transport (191 KB)
Moving cyclotron assembly
Cyclotron on Truck (198 KB)
Cyclotron leaving factory
Inside of treatment room (102 KB)
Treatment room (104 KB)
Treatment workstation (676 KB)