Personnel Monitoring - doe-hdbk-1105-2002

DOE-HDBK-1105-2002

Radiological Training for Tritium Facilities

Student's Guide

Notes

A. Personnel Monitoring

External Dose

Dosimeters are not typically used to

monitor for radiological doses resulting

from tritium. The weak energy beta

radiation will not penetrate the

dosimeter.

insert any site specific monitoring

procedures)

Internal Dose

The best method used to determine if

an individual has an uptake of HTO or

soluble organically bound tritium is by

bioassay (urinalysis). Routine urine

samples, collected at some

predetermined frequency and counted

for the tritium content, provide a very

sensitive measurement of tritium in the

body. This is especially true if the time

of uptake is known.

Air sampling results may be used to

assess dose from other types of special

tritium compounds.

Routine Versus Non-Routine

Bioassay Monitoring

Routine: Routine urinalysis is

conducted on a preset periodic

basis.

Non-routine or Special: Non-

routine bioassay is done whenever

a potential exposure to tritium is

suspected.

(insert site specific bioassay

procedures)

Workplace Monitoring

Air monitoring and surface contamination surveys are

used to verify that loose contamination is not present.

They provide an early indication of potential

problems.