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ES&H Manual Radiation Control Supplement |
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Appendix 3A Suggested Checklist for Reducing Occupational
Radiation Exposure |
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1. Preliminary Planning and
Scheduling
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Plan in advance
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Delete unnecessary work
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Determine expected radiation
levels
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Estimate person-rem
(collective dose)
·
Sequence jobs
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Schedule work
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Select a trained and
experienced work force
· Identify and coordinate resource requirements
2. Preparation of Work Control Documents
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Include special radiological
control requirements in technical work documents
· Perform as low as
reasonably achievable (ALARA) pre-job review
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Select and optimize
engineering and administrative controls to control dose
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Plan access to and exit from
the work area
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Provide for service lines
(air, welding, ventilation)
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Provide communication
(sometimes includes closed-circuit television)
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Remove or shield sources of radiation
·
Plan for installation of temporary
shielding
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Decontaminate
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Work in lowest radiation
levels
·
Perform as much work as
practicable outside radiation
areas
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State requirements for
standard tools
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Consider special tools,
including robots
· State staging requirements for materials, parts and tools
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Analyze PPE requirements to
ensure optimization of hazard control, risks, and costs
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Incorporate Radiological
Control Hold Points
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Minimize discomfort of
workers
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Revise estimates of
person-rem (collective dose)
· Prepare Radiological Work Permits (RWPs)
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Design shielding to include
stress considerations
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Control installation and
removal by written procedure
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Inspect after installation
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Conduct periodic radiation
surveys
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Prevent damage caused by
heavy lead temporary
shielding
·
Balance radiation exposure
received in installation against exposure
saved by installation
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Shield travel routes
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Shield components with
abnormally high radiation levels early in the maintenance period
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Shield position occupied by
worker
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Perform directional surveys
to improve design of shielding by locating source of radiation
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Use mock-ups to plan temporary
shielding design and installation
· Consider use
of water-filled shielding
4. Rehearsing
and Briefing
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Rehearse
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Use mock-ups duplicating
working conditions
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Use photographs and
videotapes
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Supervisors brief
workers
5. Performing
Work
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Comply with technical
work documents and RWPs
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Post radiation levels
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Keep excess personnel out of
radiation
areas
·
Control radiation exposure
while controlling exposure to other hazards
·
Supervisors and workers keep
track of radiation
exposure
·
Workers assist in radiation
and radioactivity
measurements
·
Delegate radiological
control monitoring responsibilities
·
Evaluate use of fewer
workers
·
Reevaluate methods used to
control radiation
exposures
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Compare actual collective
dose against pre-job estimate
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Review work practices to see
if changes will reduce dose
· Coordinate
personnel at the job site to reduce nonproductive time
6. Post-Job
Debriefing
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Review collective
dose against estimate
·
Review conduct of work
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Evaluate positive/negative
portions of work
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Review potential changes to
enhance efficiency
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Review possible conflicts of
radiation controls with general safety
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Resolve radiation control conflicts
with Industry Safety Reports
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Recommend specific
changes for subsequent jobs
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ISSUING
AUTHORITY |
APPENDIX
AUTHOR |
APPROVAL
DATE |
EFFECTIVE
DATE |
EXPIRATION
DATE |
REV. |
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ESH&Q Division |
07/01/10 |
07/01/10 |
07/01/13 |
4 |
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