A linear accelerator (LINAC) is the machine that delivers external beam radiation therapy, and its output and beam quality need to stay within tight, consistent tolerances over time.
Routine quality assurance (QA) testing checks this at scheduled intervals — daily, monthly, and annually, depending on the test — but performance can still drift between those checks.
What Performance Monitoring Adds
LINAC performance monitoring uses data the machine already generates, such as log files, to give a more continuous view of how the machine is behaving between scheduled QA sessions.
Rather than replacing physics QA, it is intended to sit alongside it, giving staff earlier visibility into trends that might otherwise only surface at the next scheduled test.
Why Earlier Visibility Matters
- Small deviations can be reviewed before they affect treatment quality
- Unplanned downtime may be reduced when issues are caught earlier
- Ongoing data supports documentation for QA and compliance review
How This Fits a Department’s QA Program
Performance monitoring tools are a supplement to, not a substitute for, the scheduled physics QA program required by department protocols.
Used together, routine QA confirms the machine meets tolerance at defined checkpoints, while ongoing monitoring helps flag anything that changes in between.
Quantaris Medical’s LinacWatch is built for this ongoing monitoring role, using LINAC performance and log-file data to support radiation therapy QA.
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Learn more about LinacWatch and how ongoing LINAC performance monitoring can support your radiation therapy QA program.