MONITORING RADIATION
In the United States, anyone working with or near radioactive materials is
subject to the limits on occupational exposure mentioned earlier and must
complete a radiation safety training course to be designated an authorized
operator. An individual designated as an authorized operator must work in
a “controlled” environment to the extent that their exposure to radiation
must be monitored. Several means of personnel monitoring or dosimetry
exist; the most common methods are film badges and thermoluminescent
dosimeter (TLD) badges.
In Canada, nuclear gauge operators are not normally classified as Atomic
Radiation Workers. In such cases, the general public dose limit of 0.5
rem/yr. would apply. Operators may not be required to wear a dosimeter.
To establish the personnel monitoring requirements for your application,
consult the conditions of your radioisotope license and the Atomic Energy
Control Board regulatory document R91 “Monitoring and Dose Recording
for the Individual”.
3440 RADIATION PROFILE
Table C–1 shows the radiation profile for the 3440 gauge. The table lists
the radiation dose equivalent rates (in mrem/hour) for each side of the
gauge and transport case shown in Figure C–2.
LEFT SIDE
TOP
BACK
LEFT SIDE
TOP
BACK
FRONT
BOTTOM
RIGHT SIDE
FRONT
BOTTOM
RIGHT SIDE
TRANSPORT CASE GAUGE
Figure C–2. 3440 Gauge and Transport Case
Appendix C–4
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