should avoid receiving a direct exposure of x-rays while wearing the film badge, such as
when undergoing diagnostic or therapeutic x-ray exposure themselves. This is because
x-ray exposure in those instances is not to be included in the maximum permissible
dose. Film badges should also be protected against direct sunlight to prevent thermal
sensitization and possible light leaks in the wrapping paper.
d. When not in use, film badges should be stored in a radiation-free area along
with a control film badge. The purpose of the control film badge is to permit the
laboratory responsible for processing and evaluating the film badge to take into account
such factors as background radiation, temperature variations, etc., that would otherwise
be recorded as an occupational exposure.
e When an overexposure is indicated on a film, an investigation is conducted to
see if the exposure was indeed accidental or if it was the result of a deliberate act or
carelessness. Some of the most common causes of overexposure are:
Deliberate exposure of the film badge.
Improper storage of the film badge.
Failure of the individual to utilize protective shielding.
Improper working techniques.
Inadequate or defective radiation shielding.
(6) Unintentional wear of the film badge while receiving diagnostic or
(7) Failure on the part of the submitting installation to identify the
questionable film packet as having been used for nonroutine recording of radiation
f. Improper use of film badges results in misleading reports and waste of time
and money in unnecessary investigations. Film badge programs are designed to
provide radiation workers with a means for detecting accidental exposure to radiation in
order that they can be provided with medical treatment if necessary. It behooves
specialists to wear the film badge when appropriate to do so and to take required
measures to ensure the success of the film badge dosimetry program.