Arcing | How it affects your CT Tube insert?

Arcing: Arcing is a common problem in all high voltage systems. Some causes have been mentioned above: high gas levels in the vacuum, evaporation of conducting metal on insulator surfaces, and crazing or etching of insulators which in turn produce higher gas pressure or degrade the insulators ability to hold off the high voltage.

Other causes such as small insulator or metal particles which are freed by operation or can be generated within the tube produce gas and conductive films on insulators. These particles can cause small but focused electron beams which trigger arcs.

One argument for changing the oil in a CT (Computed Tomography) tube is that it can help to reduce arcing. Arcing is the discharge of electrical energy through a gas or through a solid dielectric, such as air or insulation, and it can have a significant impact on the performance and lifespan of a CT tube.

One of the main reasons for arcing in a CT tube is the presence of contaminants in the oil used as a coolant and lubricant. Contaminants such as dust, metal particles, and water can cause the oil to degrade and break down over time. As the oil breaks down, it can lose its insulating properties and become conductive, which can increase the risk of arcing.

By regularly changing the oil in a CT tube, it is possible to remove these contaminants and prevent the oil from breaking down and reducing its insulating properties. This can help to reduce the risk of arcing, and thus, help to prolong the lifespan of the CT tube and its components. Furthermore, regular oil changes can also help to maintain the viscosity of the oil, which can help to avoid the thermal and mechanical stress and reduce the risk of arcing.

Additionally, when changing the oil, it is important to use high-quality oil that is specifically formulated for use in X-ray equipment, this will help to ensure that the oil has the necessary properties and characteristics to provide adequate lubrication, cooling and insulation, and help to prevent arcing.

In conclusion, changing the oil in a CT tube can help to reduce the risk of arcing by removing contaminants and preventing the oil from breaking down and reducing its insulating properties. Regular oil changes can help to prolong the lifespan of the CT tube and its components, and ensure a proper functioning of the system.