Module 9: Radioactive Contamination Control
Poor housekeeping in contaminated areas.
Excessive motion or movement in areas of higher
Improper usage of step-off pads and change areas.
Violation of contamination control ropes and
Hot particles: Small, sometimes microscopic pieces
of highly radioactive material may escape
containment. These pieces are known as "hot
Hot particles may be present when contaminated
systems leak or are opened. These particles may
also be present when machining, cutting, or grinding
is performed on highly radioactive materials.
Hot particles can cause a high, localized radiation
dose in a short period of time if they remain in
contact with skin.
Indicators of possible contamination:
Radiological workers should be aware of potential
radioactive contamination problems. Potential
contamination problems should be reported to the
Radiological Controls Organization. Examples
Leaks, spills, or standing water that is possibly from
a radioactive fluid system.
Damaged or leaking radioactive material containers.
Open radioactive systems with no observable
Dust/dirt accumulations in radioactive
Torn or damaged tents and glove bags or
containments on radioactive systems.