The document was an AWRE health physics paper looking at ways of testing the film badges
to be sure they were accurate.
That's why people who work around radiation are required to wear film badges
that measure cumulative radiation exposure.
They had radiation levels recorded by film badges
but most test participants did not.
are especially economical personnel monitoring devices that generally are used to record whole-body radiation exposure accumulated at a low rate over a long period of time.
We have heard earlier, in the briefing film, that film badges
will be worn to determine the amount of individuals' radiation exposure, and "you'll be moved out in time to avoid sickness."
Uncertainties in dose estimates in the worker cohorts are caused by sampling variation in measurements from film badges
and thermoluminescent dosimeters, adjustments made to doses below the limit of detection, and attenuation of externally measured dose by shielding (Gilbert 1998; Gilbert and Fix 1995).
The light weight portable monitor gives an immediate indication of exposure to ionizing radiation without waiting for film badges
to be developed.
Some of the men were given film badges
to Wear, but by no means did all of them receive these devices, which at least were meant to measure the levels of radiation to which they were exposed.
generally offer the benefits of faster throughput-about 50 badges per hour versus a maximum of 30 badges per hour for thermal-as well as better portrait stability and quality.