Beam QA Instruments

QA StereoChecker Simplicity. Workflow. Results.

“Iris QA that actually took more than 4 hours was shortened to about 10 minutes.” — Junji Suzuki, Ph.D.

NEW! Simplicity. Workflow. Results. - QA StereoChecker Reimagined.

Qasc software mlc 1400


CyberKnife Daily QA

The refined MLC Garden Fence test provides the absolute leaf position results against Accuray’s four MLC test criteria – two for overall MLC bank accuracy and two for individual leaf accuracy. MLC leaf position errors as small as 0.2mm are detected.

Qasc software iris 1400

Iris QA

CyberKnife Daily QA

Easily acquire scan-quality data every morning for radial profiles, field width, penumbra, and flatness. This test detects field size variations as small as 0.1mm.

Qasc software panda 1400


CyberKnife Daily QA

Replace the film-based Accuray AQA test with one that is faster, easier, and more detailed. Iris and fixed cone PANDA tests measure the translational and rotational offsets in 3 dimensions in addition to the total magnitude. This test detects offsets as small as 0.1mm.

Qasc software monthly 1400

Monthly Linac and CyberKnife QA

Quickly perform monthly single field analysis tests for MLC, jaw, and fixed cone collimated linac fields or Iris, MLC, and fixed cone collimated CyberKnife fields. Metrics for field width, penumbra, flatness, and symmetry together with inline and crossline profiles are displayed for review.

Qasc software manual 1400

Manual Mode

Acquire images with outstanding 200 micron resolution, independent of linac systems, for effortless DICOM export and analysis in software applications.


Build on a solid foundation

Installation and setup have been completely reimagined, providing users with a robust, secure, and intuitive experience as a locally-hosted web application.

Qasc workflow welcome 1400


Simplified & optimized

QA StereoChecker is designed with therapists in mind, as they are key to efficient morning QA being done. No hassle device setup and uncomplicated software provide the means to successfully integrate CyberKnife QA into the therapist’s daily workflow.

Qasc workflow simplified 1400
Qasc results analysis 1400


Test results are quickly displayed upon image acquisition. They are also accessible through quick links Review and Trending workspaces.

Qasc results trending 1400


Version 2.0 now provides full trending of all test metrics through graphical and tabular displays making it easier than ever understand machine performance issues so they may be addressed in a timely manner, securing optimal machine uptime.

Qasc results report 1400


QA session reports and longitudinal reports are promptly generated with the click of a button.


Introduction to QA StereoChecker

TOYOTA Memorial Hospital utilizes the just-in-time concept of TPS (TOYOTA production system) which involves efficiently and completely eliminating waste, inconsistencies, and unreasonable requirements on the production line.

So, for that reason, we purchased QASC in order to eliminate unnecessary time, unnecessary costs like film, and inconsistencies with film analyses. Moreover, QASC is easy to use.

Iris QA that actually took more than 4 hours was shortened to about 10 minutes. Measurement and analysis of the flatness test was also easy and our working hours dramatically decreased.

Junji Suzuki, Ph.D.

Medical Physicist

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    Filmless and finished in under 10 minutes. Receive more information about CyberKnife QA Solutions.

QA StereoChecker™

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