radiographic technique (part I)

as wavelength increases, frequency ________

decreases

the quantity of the primary beam is controlled by which factor?

mA

what factor is responsible for accelerating the electrons across the x-ray tube?

kV

decreasing the kV by 15% reduces the overall radiographic density by _____

½

increasing kV increases what type of radiation?

scatter radiation

what is the primary controlling factor for contrast?

kilovoltage

the amount of kV selected is based on body part _____________

thickness

what is the minimal adjust necessary for mAs to visualize or notice a change in radiographic density?

30-35%

what happens to patient exposure when mAs is doubled?

# of x-rays is doubled

TRUE or FALSE: increasing mA increases the penetrating ability of x-ray photons

FALSE