Chapter 6 Flashcards
X-Ray Production
as filament electrons enter anode target
most interact with the outer shell electrons
a filament electron knocks the K& L shell out of orbit and a M shell comes in to replace it what is the energy of the M shell
66.7
bremsstrahlung means
braking radiation
beam quantity is controlled by
mAs
increase in distance from target
decrease in photon quantity in specific area
Compton interaction
loses one third of its energy
Compton scatter strikes x-ray in wrong place resulting in
fogs x-ray image
one reason the radiographer should never stand near the patient during exposure
Some Compton scatter photons exit the patient and would expose the radiographer. This is why shielding (lead aprons, lead gloves, etc.)
if the question says “by air”
answer is transmitted
most x-rays produced are
bremsstrahlung
x-ray’s are made up of
brems and characteristics
coherent scattering often
interacts with x-ray photon of a rather low energy
Compton scattering is major source of
occupational exposure
COHERENT scattering
changes direction
absorption
refers to the x-ray photons attenuated by the body PATIENT DOSE
