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| DOE-STD-1128-98
Guide of Good Practices for Occupational Radiological Protection in Plutonium Facilities
reasonable. Both engineered and administrative control measures should be used for
limiting exposure.
Engineered controls should be utilized whenever possible. In addition, periodic verification
of the continued effectiveness of these controls should be performed by facility health
physics personnel. Ventilation and filtration systems should be routinely checked and
inspected to assure that operation is maintained within the design criteria. The integrity of
shielding, the reliability of equipment, and the calibration of instruments should likewise be
routinely verified.
Although administrative controls are not an adequate substitute for engineered features, they
are necessary. They are a part of the management systems developed and implemented to
provide guidance, direction control, and limitations for activities. Administrative controls
include the documents that describe organizational interfaces and prescribe controls for
radiation protection. Administrative controls, especially procedures, should be reviewed by
those responsible for ALARA to ensure that radiation exposure activities include dose
limitation considerations.
Factors that must always be considered in an ALARA program are the costs and benefits.
This is especially important when the identified benefit represents a very small increment of
radiation dose reduction. Funds for dose reduction should always be applied to actions
which will achieve the greatest dose reduction for the cost.
The final decontamination and decommissioning (D&D) of a plutonium facility should be
given consideration in both the original design of the facility and any modifications done to
the facility during its operating lifetime. Likewise, D&D should be given consideration in
choosing operating processes and practices for the facility, including any changes in
processes and practices during its operating lifetime. Both design and operating activities
can affect the radiation levels and personnel doses encountered by workers who perform the
D&D activities. To the extent practicable, design and operations should provide for
radiation levels that are ALARA during D&D activities.
The successful implementation of an ALARA program requires the commitment, support,
attention, and efforts of all members of an organization. In facilities in which the radiation
exposures are already relatively low, implementation of the ALARA concept is particularly
challenging. The reduction of radiation doses to ALARA levels demonstrates to workers
and the public a continued emphasis, commitment, and concern for health and safety.
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