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Bombarding cancer

Varian 21 IX medical linear accelerator (LINAC) with on-board imaging and cone-beam CT

The large component is known as the gantry. It weighs fourteen tons, yet can deliver radiation
to a point in the patient to within two millimeters of where we want to deliver the radiation.

My job as a medical physicist is to calibrate these annually, and sometimes monthly.
I was involved with the installation and configuration of this LINAC.

And yes, I know, I should have got the top of the machine in the foto,
but there was no way I could get the top and the bottom.

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