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Page Title:
Areas a RW I Trained Person May Not Enter |
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|  DOE-HDBK-1130-98
Module 6: Radiological Access Controls and Postings
Instructor's Notes
b.
General requirements:
EO6 Identify the minimum
or recommended
1)
An Underground Radioactive Materials Area
requirements for entering,
may be exempt from the general entry and
working in, and exiting
exit requirements if individual doses do not
Underground Radioactive
exceed 100 mrem in a year.
Material Areas.
2)
Contact the Radiological Control Organization
prior to entry.
c.
(Insert facility-specific information.)
D. Areas a RW I Trained Person May Not Enter
1.
High Radiation Areas (HRAs)
HRA is any area accessible to individuals in which
radiation levels could result in an individual receiving a
deep dose equivalent in excess of 100 mrem/hr at 30
centimeters from the source.
a.
Posting Requirements:
"CAUTION or DANGER, HIGH RADIATION
AREA"
Additionally, the posting may state:
Show sign.
"Personnel Dosimetry Required for Entry"
b.
Unescorted entry into this area requires
appropriate training, such as RW II or RW I with
the High Radiation Area training module.
2.
Very High Radiation Areas (VHRs)
A VHR is any area accessible to individuals in which
radiation levels could result in an individual receiving an
absorbed dose in excess of 500 rad/hr at 1 meter from
the source of radiation.
a.
Posting Requirements:
"GRAVE DANGER, VERY HIGH
Show sign.
RADIATION AREA"
69
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