Overview
Medical physics sits at the boundary between physics calibration and clinical workflow. This rotation followed the daily QA path for a linear accelerator, the chart checks that gate treatment, and the hands-on fabrication of bolus for surface dose shaping.
LINAC QA
Morning QA covers output constancy, symmetry, and interlock checks. Each measurement has a tolerance and an action level — the discipline is in doing the same small checks the same way every day and knowing when a drift needs physics review.
01 — Daily QA
Output, symmetry, laser, and interlocks — logged and trended.
02 — Monthly
Deeper constancy and mechanical checks; comparison to baseline.
03 — Chart checks
Prescription, plan, and documentation review before treatment.
04 — Bolus
Molded for surface coverage; thickness and fit verified.
Charting & bolus
Patient charting is a second set of eyes: prescription, imaging, and plan agreement, plus documentation that the record supports what the machine will do. Bolus work is tactile — heating, molding, and trimming for an air-gap-free fit that holds through setup.