Internal Dose Evaluation

DOE-STD-1121-98

3.1.5 Internal Dose Evaluation

method for evaluating internal doses from routine and special bioassay data, and

where appropriate, from workplace monitoring data, including personal air samplers

methods for calculating internal doses

methods for evaluating dose equivalents from specific radionuclides, mixtures of

radionuclides, and materials of differing chemical characteristics

basis for the evaluation methods including recommendations given in ICRP

Publications and NCRP Reports, which embody improvements and updates of the

science of internal dosimetry

justification for alternative approaches and assumptions used in dose calculations

dose evaluation quality assurance

biokinetic models

model parameters

assumptions

individual-specific and facility-specific factors that are expected to change the dose

calculations by a factor of 1.5 or more

a description of the level of intake or committed effective dose equivalent detection

achieved

a basis for projecting a CEDE of one IL from bioassay results

3.1.6 Internal Dose Management

action levels for administrative response to intakes of radionuclides by workers,

including decisions reached among medical, management, and radiation protection

staff (RadCon Standard 523.6)

a description of the site policy for confirming intakes in instances of historical

bioassay data prior to January 1, 1989, where follow-up bioassay samples were not

required on positive bioassay samples or where documentation is lacking (counter

efficiency, chemical recovery, minimum detectable amount/activity, etc.)

methodology to account for the portion of a bioassay result that may be due to one

or more prior confirmed intakes

basis for work restrictions used during internal dose evaluation

administrative controls to limit dose to declared pregnant workers, minors, and

students