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Radiological Safety Training for Radiation-Producing (X-Ray) Devices
Student's Guide
The following safety features are essential in an open-beam X-ray system:
1.
Each port of the X-ray tube housing must have a beam shutter.
2.
All shutters must have a conspicuous SHUTTER OPEN indicator of fail-
safe design.
3.
Shutters at unused ports should be mechanically or electrically secured to
prevent casual opening.
4.
Special rules apply when the accessory setup is subject to change as is
the case with powder diffraction cameras. In these cases, the beam
shutter must be interlocked so the port will be open only when the
accessory is in place.
5.
Exposure rates adjacent to the system must not exceed 2.5 mrem/hour at
5cm from the surface of the housing.
6.
A guard or interlock must prevent entry of any part of the body into the
primary beam.
(Insert facility-specific information if system definitions differ from the above.)
E.
INTENTIONAL INDUSTRIAL X-RAY DEVICES
i.
Industrial X-Ray Devices.
Industrial X-ray devices are used for radiography, for example, to take pictures of
the inside of an object as in an X-ray of a pipe weld or to measure the thickness of
material. ANSI standard N43.3 defines five classes of industrial X-ray
installations: cabinet, exempt shielded, shielded, unattended, and open.
(Add facility-specific examples.)
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