Radiological Safety; Understanding Radiological Safety - Filtec FT-70c Service And Technical Reference Manual

FT-70 Fill Level Inspector Service Manual

Radiological Safety

Understanding Radiological Safety

XIV
The Filtec Model FT-70 utilizes an x-ray tube to produce the x-ray
radiation required for performing inspection activities. The
secured and insulated x-ray source housing completely contains
and shields all high voltage components within the x-ray housing
assembly.
The x-ray assembly contains a thermal safety sensor that monitors
the temperature of the x-ray housing assembly and immediately
shuts off (de-energizes) the x-ray generator when the temperature
exceeds 60 degree C. When the x-ray generator is de-energized, no
x-ray is produced and there is no residual x-ray exposure.
The only possible way to be exposed to hazardous levels of radio-
active material using this equipment is externally, through
excessive exposure to a radiation source outside the body. There
are no by products that can be ingested into the body.
The FT-70 is unlikely to create hazardous radiation levels for the
following reasons:
• The FT-70's X-ray Generator produces a relatively weak source
of low energy (low penetrating power) x-ray radiation. To
receive a hazardous dose of radiation from this low energy
source would require extremely long exposure directly to the
main radiation beam.
• While we warn against placing hands or other body parts in
front of the x-ray beam when it is turned on, it would require
several hours of exposure for the hand to receive an excessive
radiation dose.
• The x-ray beam is tightly confined by shields and collimators
and is completely contained within the inspection tunnel.
Because the radiation beam does not spread outside the
inspection tunnel, it is highly unlikely that under normal
circumstances an appreciable radiation dose could be incurred
at a location other than directly in front of the main x-ray beam
when the x-ray source is turned on.
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