Pre-treatment quality assurance (QA) is performed to verify that an accelerator system can deliver according to plan. It tests that the plan created in the dose planning system can also be executed, and gives the desired result in the form of 3D dose distribution.
The transfer of data from the dose planning software to delivery via the linac consists of a lot of uncertainty for the user. We eliminate this uncertainty by independently verifying that the system delivers the treatment as expected and planned.