QA StereoChecker

Filmless CyberKnife® QA System

Easy Method, Better Practice

Designed to be used by both physicists and therapists, this easy method for complete daily CyberKnife QA enables improved frequency and depth of QA practices, potentially improving clinical results.

Filmless and Fast

No film needed. Achieve accurate results within 0.1 mm in less time - hours reduced to minutes - while saving money and potentially increasing patient safety.

QA is done using the clinical pathway rather than the typical QA service mode for more realistic and faster results.

Features & Benefits

Automated Iris™ QA

  • Complete in 5 minutes
  • Scan quality data every morning
  • Measure profiles, field width, penumbra, flatness
  • Capable of detecting a 0.1 mm field size variation

Treatment Localization
(Accuray Quality Assurance™)

  • Complete in 5 minutes
  • Replaces film-based AQA and is faster and easier
  • Measure absolute eccentric and center deviation
  • Capable of detecting a 0.5 mm total translational offset

Picket Fence and
Garden Fence Tests

  • Complete in 5 minutes
  • Replaces daily non-quantitative daily film-based Picket Fence Tests and monthly Garden Fence Tests
  • Measures planned vs. acquired leaf patterns
  • Capable of detecting leaf variations of 0.2 mm


QA StereoChecker
Dimensions 38.7 cm L x 32.7 cm W x 4.9 cm H
Photons 60Co to 15 MV
Total Pixel Number 1024 x 1024
Active Pixel Number 1000 x 1000
Pitch 200 µm
Total area 204.8 x 204.8 mm2
ADC 16 bit, 1 MSps
Dynamic Range > 88 dB
Scintillator Gd2O2S:Tb
Software Specifications
Operating system Windows® 10 Professional
Processor Intel Core (At least dual-core recommended)
Memory 8 GB RAM (16 recommended)
Hard Drive 2 GB Free (20 GB Recommended)
Screen resolution 1024 x 768 or higher
Ports RJ45 (Ethernet)


QA StereoChecker Introduction

0.7 min


Product Resources

Publications, tech notes, testimonials, and other resources to support QA StereoChecker.

Looking for a user manual?

Available on request. Contact your Account Manager


View publications related to this product from experts in the fields of medical physics and oncology.

Go to Publications »

Tech Notes

Find detailed instructions on how to setup and execute common processes from our experienced technicians.

Go to Tech Notes »