• Decrease font size
  • Return font size to normal
  • Increase font size
U.S. Department of Health and Human Services

Radiation-Emitting Products

  • Print
  • Share
  • E-mail

Air Kerma and AEC Reproducibility Annual Quality Control Test

Policy Guidance Help System logo


900.12(e)(5)(v): Breast entrance air kerma and AEC reproducibility. The coefficient of variation for both air kerma and mAs shall not exceed 0.05.

  1. Must medical physicists test all AEC detectors for AEC reproducibility in mammography units with multiple AEC detectors in a single cassette holder (bucky)?
  2. Must medical physicists test AEC reproducibility in all clinically used AEC modes?