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DOE-HDBK-1130-98
Module 9: Radioactive Contamination Control
Instructor's Notes
i.
Use standard contamination control procedures as
established by the Radiological Control
Organization.
1)
Do not violate contamination area ropes or
barricades.
2)
Frisk materials out of contamination areas as
directed by site procedures.
3)
Use change areas and step-off pads as directed.
4)
Do not pass items out of contamination areas
without following site procedures.
5)
Be alert for potential violations to contamination
control procedures.
j.
Ensure ventilation systems are operating as designed
(i.e., no unauthorized modifications).
k.
Radiological workers should always ensure that the
proper entry, exit, and equipment control procedures
are used to avoid the spread of contamination.
Comply with procedures!!
EO4 Identify methods used
2.
Engineering controls
to control radioactive
contamination.
a.
Ventilation
1)
Systems and temporary spot ventilation (e.g.,
temporary enclosures with HEPA filters) are
designed to maintain airflow from areas of least
contamination to areas of most contamination (e.g.,
clean to contaminated to highly contaminated
areas).
2)
A slight negative pressure is maintained on
buildings/rooms/enclosures where potential
contamination exists.
HEPA - High Efficiency
3)
High efficiency particulate air (HEPA) filters are
Particulate Air filter.
used to remove radioactive particles from the air.
b.
Containment
91


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