When a hospital or imaging center has small lapses of operation due to down time it is inexcusable. Your CT scanner has many moving components that are electrical, and the heat in the gantry can build up rather quickly. Cooling is a major requirement when it comes to modern multi slice CT systems that are designed to accommodate up to 100kW of tube power and very high patient load. Hence you need to keep the system and room chilled to prevent over-heating.
Deciding on the right choice for your CT sometimes depends on the location that the CT will reside in. If you are replacing a system, then you might already have cooling method.
Air-cooled
In an air-cooled system, heat is rejected to the ambient air through the external covers of the gantry via fan. If the facility does not have a ready water source such as a cooling tower or plant chilled water system, an air-cooled chiller is the way to go. The chiller itself is a little more expensive. However, with respect to the total system, it is much less because you don't need anything else to carry the heat off other than air.
Consider these advantages:
Water-cooled chiller
In the case of a water-cooled chiller, heat is rejected to some other water source such as a cooling tower plant chilled water system.
If the facility does have a ready water source such as a cooling tower or plant chilled water system, then a water-cooled chiller is the way to go, provided that the existing water system has enough reserve capacity to service the additional head the chiller will put in to the system.
Consider these advantages:
Whether you install water-cooled or air-cooled system the room environment should meet or exceed the load, temperature and humidity specifications listed in CT manual.
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