The Shielded X-ray Unit Refresher training module provides user guidance regarding the risks associated with x-ray generating devices in which x-ray radiation does not exit the enclosed unit. Shielded x-ray devices include cabinet x-ray imaging units and analytical x-ray diffraction units, which are different from x-ray imaging units for humans and animals. The Shielded X-ray Unit Refresher training module reviews the DRS policies associated with the use of such units.
