• Radiation vs. Light field coincidence
  • Field size check
  • Couch travel check (3 dimensions)
  • EPID scaling and travel
  • Couch rotation
  • Isocenter alignment

Routine QA

  • Perform EPID-based field size and light field coincidence checks
  • EPID scaling and movement using embedded BBs
  • Variety of couch movement tests including 3 dimensional travel and rotation
  • Isocenter alignment (Winston-Lutz) tests using central BB marker

General Features

  • Laser alignment marks
  • Use on EPID surface or couch
  • Fiducial marks for 5×5, 10×10, 15×15, and 20×20 field sizes
  • Embedded BBs for phantom edges, center, and offset locations
  • Lightweight construction
  • Accurate placement of alignment marks and BBs
Automatic analysis software is available for this phantom: