Commissioning of Varian TrueBeam™

I am closely working with the physicists to commission the very first Varian TrueBeam™ at our new cancer center. During the commissioning,

• I gained understandings and hands on experience the isolock™ and beam steering.
• I performed the inventory check, leakage test, radiaiton survey, acceptance test, together with the leading physicist.
• I independently operated on the PTW BeamScan® Water tank for beam quality scanning, beam profile scanning, DLG/ELM, and TG-51 output measurement. The TPS doses calculated in water phantom were also verified comprehensively by spot checks in the water tank.
• I independently performed end-to-end test using SunNuclear Lung and Spine phantom.
• I developed codes to compared the measured PTW data, gold beam data, calculated beam data, TPS plan dose. Here is the visualization of the result.
• I designed annual QA template and performed mechanical check, dosimetry check and kV/MV imaging performance check, end-to-end tests.
• I learned to use PTW microdiomnds and W2 Scintillation detector to measure small field dosimetry.