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chapter 2

Terms in this set (77)

filament
which x-ray tube component serves as a source of electrons for x-ray production?
the target
electrons interact with what to produce x-rays and heat
tube current
the cloud of electrons that forms before x-ray production is referred to as
thermionic emission
the burning or boiling off of electrons at the cathode is referred to as
kilovoltage (kVp)
which primary exposure factor influences both the quantity and the quality of x-ray photons?
milliamperage (mA)
the unit used to express tube current is
99%
what percentage of the kinetic energy is converted to heat when moving electrons strike the anode target?
cathode side of the tube
the intensity of the x-ray beam is greater on what side
effective focal spot size decreases
according to the line focus principle, as the target angle decreases, the
bremsstrahlung interaction
which type of targe interaction is responsible for the majority of the x-rays in the diagnostic beam?
mAs
when milliamperage is multiplied by exposure time, the result is knonw as
x-rays with higher energy and more x-rays
increasing the kVp will result in
inherent filtration and added filtration
total filtration in the x-ray beam includes
calculating mAs
mAs= mA times seconds (exposure time)
calculating heat units
mA times exposure time times kVp times generator factor
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