Below are a few
interesting investigations we've heard of or been involved
with. Check back again; we'll be adding to it regularly.
Number 1.
SAIC-Exploranium GR-606 Waste Monitors
This gamma radiation detector uses a large plastic
scintillator crystal as a primary detector. It includes lights
and a sound alert as well as a remote annunciator that can be
located some distance from the detector. It functions
extremely well as a corridor mounted waste monitor that will
alarm when radioactive hospital waste is pushed by it en route
to the compactor or dumpster. This system will greatly reduce
the risk of having your waste hauler return radioactive waste
to you, with the accompanying costs.


Next, an x-ray
scan of a truck...
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and,
yes, those are stowaways in there.
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Third, an
abandoned 241-Am/Beryllium neutron source, as seen in the
following picture...

The following is
the NaI spectrum from the above sample, read on a GR-135
Identifier. Since the GR-135 was equipped with a neutron
detector it also alarmed.

Number 4. An
unknown source, circular, about 1" diameter. This is
Ra-226, but what was it used for? For details of yet another
unidentified sample, click
here.

Number 5.
Radioactive chewing gum caught at a US border crossing and
extracted from 33 tons of garbage...

Number 6. One of
two pair of new SAIC-Exploranium GR-510 radiation detector
systems located at W-M Philadelphia Transfer Station. Mr.
Butch Walton, the District Manager, participated in the GR-135
Identifier training given by Overwatch.

Number 7. This
is "The Forge" Transfer Station with one of its pair
of GR-510 radiation detector systems. Mr. Wallace Benson is
the manager who participated in the GR-135 Identifier training
program.