The Anode Heel Effect - Assignment Example

Download file to see previous pages Use a diagram to derive the equation relating to effective focal length to actual focal length. If a 15 degree target angle had an actual focal length of 5mm, what is the effective focal length? Maintaining this effective focal length, what will be the actual focal length if the target angle is reduced to 10 degrees? What are the implications for doing this?
A 15-degree target angle that had an actual focal length of 5mm, would equal 5mm(15)=75mm. Thus the effective focal length would be 75mm. If the effective length remained 75mm, then 75mm=(10)7.5mm making the actual focal length would be (10)7.5mm. The implications would be the smaller the anode angle, the better the resolution.
A rectifier is an electrical device that converts alternating current (AC) to direct current (DC), a process known as rectification. This is important to have the correct amount of electricity to heat the filaments.
Space charge is where an excess electric charge is treated as a continuum of charge distributed over a region of space instead of distinct point-like charges. This model typically applies when charge carriers have been emitted from some region of a solid, the cloud of emitted carriers can form a space charge region when sufficiently spread out, or the charged atoms, or molecules left behind in a solid form in a space charge region. Space charge usually only occurs in dielectric media since a conductive medium charge can be rapidly neutralized. Space charges can be negative or positive.
X-ray production of quality means the penetrating ability of the beam. The higher quality comes from a more penetrating beam, which has to do with the energy spectrum of the x-ray. In respect to x-ray, production quantity is the number of x-ray photons in the beam. The quality of the x-ray beam is controlled by the voltage while the milliamperes control the quantity. ...Download file to see next pagesRead More