C–6
SOURCE ENCAPSULATION
The source in the 3440-L gauge meets regulatory requirements of U.S. and
international authorities as “Special Form” sealed source material. The
sealed sources used are encapsulated to prevent leakage of the radioactive
material and meet radiation safety requirements.
The neutron (americium-241:beryllium) and photon (cesium-137) sources
are compressed and welded inside stainless steel capsules.
Proper use of this instrument (following the instructions in this manual)
and the shielding design of the instrument will keep the exposure levels at
a minimum under normal conditions. The operator, however, may be
required to wear personnel dosimetry when using the 3440-L.
EMERGENCY PROCEDURES
If the nuclear gauge is lost or stolen, immediately notify the Radiation
Safety Officer (RSO).
The gauge owner should complete the emergency contact information on
the lines furnished below:
The company RSO is ________________________________________
Call the RSO at _____________________________________________
The regulatory agency is ______________________________________
Call the agency at ___________________________________________
If a gauge is damaged, then follow the steps below:
Locate the gauge and/or source.
Do not touch or move the gauge.
Immediately cordon off an area around the nuclear gauge and/or
source. A radius of 15 ft (5 m) will be sufficient. Do not leave the area
unattended.
Keep all unauthorized personnel away from the nuclear gauge.
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