8
*XRS-4 should be positioned directly in front of the object to be X-rayed and the imager placed directly behind
the object to be X-rayed. Imager should be placed as close to the object as possible. Distance between XRS-4
and imager is usually 24 to 72 inches (30 to 180 cm). XRS-4 should be stabilized during use on a flat surface, a
tripod, or a custom fixture suitable for holding the 22 pound (9 Kg) XRS-4.
**OPERATING PRECAUTIONS:
The operator should always stand at least 20 feet (6m) behind the X-ray unit and
clear all personnel at least 20 feet (6m) behind the unit or at least 100 feet (30m) from the front of the unit before
pulsing. The exclusion zone (below) should be a controlled area free of all personnel while
X-ray pulses.
Figure 4: Exclusion Zone
24 to 72 inches (30 to 180
cm)
XRS4
OBJECT
IMAGER
X-ray Beam
36’ (11m)
36’ (11m)
100’ (30m)
20’(6m)
20’(6m)
20’(6m)
