Nev. Admin. Code § 459.341 - Precautionary procedures: Control of access to high radiation areas
1. Except as otherwise provided in this
section, a licensee or registrant shall ensure that each entrance to a high
radiation area has one or more of the following features:
(a) A control device that, upon entry into
the radiation area, causes the level of radiation to be reduced below the level
at which a person could receive a deep-dose equivalent of 0.1 rem in 1 hour at
30 centimeters from the source of radiation or from any surface that the
radiation penetrates.
(b) A control
device that energizes a conspicuous visible or audible alarm so that a person
entering the high radiation area and the supervisor of the activity in the area
are made aware of the entry.
(c)
Entrances that are locked, except during periods when access to the area is
required with positive control over each individual entrance.
2. In place of the controls
required pursuant to subsection 1, the licensee or registrant may substitute
continuous direct or electronic surveillance that is capable of preventing
unauthorized entry into the radiation area.
3. The licensee or registrant may apply to
the Division for authorization to use alternative methods for controlling
access to high radiation areas.
4.
The licensee or registrant shall establish the controls required pursuant to
subsections 1 and 3 in a manner that does not prevent a person from leaving a
high radiation area.
5. The
licensee is not required to control each entrance to a high radiation area that
contains only radioactive materials prepared for transport and packaged and
labeled in accordance with the regulations of the United States Department of
Transportation if:
(a) The packages do not
remain in the area for more than 3 days; and
(b) The dose at 1 meter from the external
surface of any package does not exceed 0.01 rem per hour.
6. The licensee is not required to control
each entrance to a room or other area in a hospital solely because of the
presence of a patient whose treatment requires the use of radioactive material
if there are persons in attendance who will take the necessary precautions to:
(a) Prevent the exposure of a person to
radiation or radioactive material in excess of the limits specified in NAC
459.325, 459.331, 459.333 and 459.335; and
(b) Ensure that any doses are as low as are
reasonably achievable.
Notes
NRS 459.201
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