A sufficient number of points should be surveyed to adequately assess
the radiological status of the area being surveyed.
Routine radiological surveys should be regularly conducted, recorded,
and reviewed for all areas where personnel could be exposed to alpha,
beta, gamma, X-ray, or neutron radiation throughout the site. Surveys
should be performed at frequencies adequate to ensure protection of
personnel. The following surveys should be considered the minimum.
Additional surveys should be conducted, recorded, and reviewed as
necessary to ensure that personnel exposures are maintained ALARA.
General radiation and contamination surveys should be performed:
-- To identify and verify the boundaries of areas which must be
-- to verify that radiation and contamination levels in uncontrolled
areas remain less than specified limits.
-- to determine the appropriate posting of localized higher radiation
levels, beams, or hot spots.
-- to ensure that radiological conditions are acceptable and documented
prior to, during, and at the completion of work that may cause
changes in radiation levels to occur (see Munson et al., 1988, p.
-- to satisfy required predetermined procedure hold-points in work
areas and adjacent areas, whenever operations are performed that
may cause significant increases in radiation levels. The survey may
be required as part of a radiological inspection step required by the
work procedure. This includes areas above and below the work area
as appropriate during special processing operations or cell
decontamination, movement of permanent or temporary shielding,
radioactive waste processing, and relocation of highly radioactive
Routine radiation and contamination level surveys should be performed
in the workplace at a frequency commensurate with the radiation hazard,
to detect trends related to equipment, systems, environment, and work
Non-routine surveys of radiation and contamination levels in the
workplace should be performed: