scatter radiation

scatter radiation

a change in direction of the x-ray photon after interaction with the atoms of the patient

increasing scatter __________ density, _________ contrast, and ____________ resolution

increases, decreases, decreases

fog

increase in density that has a gray appearance

primary radiation

radiation emitted from the x-ray tube

remnant (exit) radiation

unabsorbed and scattered x-rays that interact with the IR; carries the aerial image

factors that influence the degree of scatter radiation (4)

field size, thickness of object, density of object, tube potential

field size

area of the x-ray beam that is altered by the use of a beam limiting device

increasing field size _________ scatter

increases

thickness of the object

more atoms are present in larger object to cause more interactions

increasing the thickness of the object _________ scatter

increases

density of the object

the more dense the object is, the more scatter is produced

tube potential

as kV is increased, the energy of the scattered radiation also increases giving it a better chance of reaching the IR