Comparison of Vendor-Dependent
vs. Independent Linac QA

Originally Aired on November 17, 2020

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Machine QA is an essential part of Radiation Therapy department workflows, providing safety checks before patient treatments. It requires tracking protocols, organizing data input, and a set of tools to complete these tests.

In this webinar, Cassandra Stambaugh, PhD, DABR, will review findings from her recent study comparing time efficiency, data collected, and results of vendor-based versus an independent QA platform for linac QA. Her study tracks time needed to perform routine QA on a single linac over three months. TG-142-compliant QA included dosimetry checks; imaging checks; and mechanical & safety checks using a commercially-available, browser-based, independent QA platform (SunCHECK™ Machine) and were compared to the data and efficiency in using vendor-specific machine checks (Varian Medical Systems® Machine Performance Check).

Learn how SunCHECK Machine, an independent QA platform, compared to a vendor-dependent QA platform, is enabling efficient, user-friendly machine QA.

Who should attend:

  • Medical Physicists & Radiation Therapists
  • Clinicians performing routine QA for their departments and seeking efficiency for their machine QA workflow

Varian Medical Systems is a registered trademark of Varian Medical Systems, Inc. Sun Nuclear Corporation s not affiliated with or sponsored by Varian Medical Systems, Inc.

The American Association of Physicists in Medicine does not endorse any products, manufacturers, or suppliers. Nothing in this webinar should be interpreted as implying such endorsement. The content of this webinar has not been peered reviewed.


Cassandra Stambaugh, PhD, DABR
Medical Physicist, Assistant Professor
Tufts Medical Center
View Biography
Andy Simon
Sun Nuclear
View Biography