Radiological Health Support Operations
10. An individual whose dosimeter is lost, damaged, or contaminated should place work in a safe condition,
immediately exit the area, and report the occurrence to the radiological control organization. The individual should
be restricted from entry into radiological areas until a review has been conducted and management has approved
512 Technical Provisions for External Dosimetry
External dosimetry programs shall be adequate to demonstrate compliance with the Table 2-1 limits [see 10 CFR
835.402(b)]. External dosimetry programs implemented to meet the requirements of Article 511.1 shall be:
Accredited by the DOE Laboratory Accreditation Program for Personnel Dosimetry (DOELAP) [see
Excepted from accreditation by the DOELAP Program [see 835.402(b)(1)]; or
Otherwise approved by the Assistant Secretary for Environment, Safety and Health [see 835.402(b)(2)].
DOE-STD-1095-95 specifies the requirements for accreditation of personnel external dosimetry monitoring
programs by DOELAP. A technical basis document should be developed and maintained for the external dosimetry
program. Personnel external dosimeters include, but are not limited to, TLDs, track etch dosimeters, film badges,
and neutron sensitive film.
The technical basis document should also address dosimeters monitoring radiation outside the scope of DOELAP,
such as dosimetry associated with high-energy accelerators and extremity dosimeters.
Facilities should participate in inter-comparison studies for external dosimetry programs.
Multiple dosimeters should be issued to individuals to assess deep dose equivalent in non-uniform radiation fields.
Non-uniform radiation fields exist when the dose to a portion of the whole body will exceed the dose to the primary
dosimeter by more than 50 percent and the anticipated whole body dose is greater than 100 millirem. When the
radiation field is well characterized and the worker's orientation is known, relocation of the primary dosimeter is
permitted in lieu of issuance of multiple dosimeters. Under such conditions, the individual's dosimeter should be
relocated to the portion of the whole body likely to receive the highest dose. Dosimeter relocation should be
conducted in conformance with facility procedures or specific work authorizations, such as RWPs. The technical
basis document should describe the methodology used in determining the dose of record when multiple dosimeters
are used and when dosimeters are relocated.
A dose assessment should be performed for each instance of a lost, damaged, or contaminated personnel dosimeter.
Monitoring programs implemented at the discretion of the contractor (i.e., for personnel monitoring that is not
required by Article 511.1) need not be accredited under the DOELAP Program. Programs implemented outside the
scope of the DOELAP Program should include:
Documented assessment of each individual's potential occupational dose to support the decision to operate
outside the DOELAP Program. Such assessments should be based upon facility design reviews, the results of
a comprehensive workplace monitoring program, and, if available, the results of previous individual
Comprehensive routine surveys of areas that may be entered by these individuals to ensure that individual
doses are not likely to exceed the Article 511.1 monitoring thresholds.
513 Pocket and Electronic Dosimeters