Work through each module in order. Every module ends with a short mastery check. 11 modules total, then one longer check across the whole path.
Guided Learning mastery checks are part of every paid plan, with a 7-day free trial. Read freely below, and you'll be prompted to start a trial once your free taste of a mastery check runs out.
See plansElectrical / x-ray circuit
X-ray tube & components
Primary exposure factors
AEC & technique charts
Grids, filters & distance
Digital receptors: CR & DR
Image processing & exposure indicators
Image quality fundamentals
Image evaluation, artifacts & QC
PACS / informatics
Fluoroscopic equipment
Section check