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118157-001 Rev C
XRV Coolers and Chillers Overview:
The X-ray tube will generate a substantial amount of heat during
operation. It is important to remove as much heat as possible to
avoid damage to the X-ray tube. Various coolers remove heat
from a closed circulated water system flowing through the X-ray
tube at ground potential. The unipolar X-ray tube normally
specifies the water flow rate and ambient conditions required to
prevent damage to the tube. The capacity of the cooler to
remove heat through a water to air heat exchanger depends on
the difference between the ambient temperature and the water
outlet temperature. The coolant used could be either plain water
or a mixture of water and glycol usually specified by the
manufacturer. The inlet and outlet hose connections are specifically marked for correct flow through the
tube. A thermal switch monitors the outlet water temperature. If the outlet temperature exceeds the
recommended operating temperature, the switch will activate opening an interlock chain removing
power from the Generator. For optimal performance of the cooler, it is important not to obstruct or
restrict the air flowing through the vents. The ambient air temperature should be maintained according
to the manufacturers’ recommendations.
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