COMMON DOSIMETRY TERMINOLOGY
   
 
Fetal badge - Badge supplied to a declared pregnant radiation worker to monitor radiation dose to the fetus for the term of the pregnancy
Dose History - Lifetime history of occupational exposure to ionizing radiation. NRC Form-4
Spare Badge - Extra badge sent at customer request for assignment to:

Visitors
New employees
Employees who have lost their normal dosimeter
Spiking - A customer practice of playing a little joke on dosimetry service companies by intentionally exposing a spare dosimeter to radiation to test the processor's ability to evaluate exposed dosimeters.

Area Monitor - Dosimeter used to monitor an area. Dose not assigned to a person.
Whole-body -Those portions of the body from the elbows to the knees, including the head.
Extremity Dosimeter- Dosimeter used to monitor dose to wrist, finger or ankle.
Millirem (mrem) - A unit of radiation dose that equates radiation exposure to biological damage. The yearly limit for occupational exposure to ionizing radiation is 5000 mrem.
Webster Calculation - When a Health Care Professional wears a protective (lead) apron to minimize radiation exposure while working in proximity to a radiation source, a badge is worn on the chest, beneath the apron, and at the collar. A Webster Calculation is then performed to determine the worker's true dose.
Minimum reportable dose -The minimum dose that can be reliably detected.