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kVpkeV( kVp, keV ): the maximum energy available kVpkeV( keV, kVp ): measure of energy
step-downstep-up( step-down, step-up ): if turns in secondary are < turns in primary step-upstep-down( step-up, step-down ): if turns in secondary are > turns in primary
Power loss in the form of heat due to resistance happens in copper
Power loss in copper can be minimized by using largersmaller( larger, smaller ) diameter conductor
What are the types of full-wave generation?
Single phase
3 phase - 6 pulse
3 phase - 12 pulse
High frequency
N-type materialP-type material( N-type material, P-type material ): silicon-arsenic bond P-type materialN-type material( P-type material, N-type material ): silicon-gallium bond
The anode is positively charged and cathode is negatively charged
Types of anodes StationaryRotating( Rotating, Stationary ): Found in general x-ray machines StationaryRotating( Stationary, Rotating ): Found in dental units
Rotating anodes are made of tungsten encased in solid copper
What slows the pitting and cracking of the anode?
Rhenium
Copper
Oil
Tungsten
Where can you find the focusing cup?
Anode
Cathode
The source of electrons come from where?
What needs to be warmed to minimize cracking?
What causes arcing and can crack the tube?
Anode evaporation
Filament evaporation
Tungsten deposition
As the angle of anode increases, heel effect increasesdecreases( decreases, increases )
Area of the effective focal spot is determined by the angle of the anodecathode( anode, cathode )
Thermal capacity of the anode is the amount of heat the anode can bearstore( store, bear ) as opposed to how much it can storebear( bear, store ) in one exposure
Using a higher kVp increases heat units (HU)