Safety (Radiation Physics and
Radiobiology) for ARRT Boards Exam
Questions and Answers 100% pass
x-ray production characteristics - ✔✔source of free electrons, acceleration
of electrons, focusing of electrons, deceleration of electrons
x-ray production - ✔✔occurs when current inside the xray tube flows from
the cathode and is suddenly stopped at the anode
bremsstrahlung - ✔✔a projectile electron misses outer shell electrons in the
target and moves in close to the nucleus (braking)
characteristic - ✔✔a projectile electron collides with an inner shell electron
of a target atom and creates a hole. Outer shell electron falls into space.
characteristic x-rays are produced at kVp levels greater than? - ✔✔70
1
100% Pass Guarantee Katelyn Whitman, All Rights
, frequency - ✔✔number of wavelengths passing a given point per unit time;
measured in hertz Hz
wavelength - ✔✔distance between successive crests of wave
quality - ✔✔kVp (strength of x-ray)
quantity - ✔✔mA (amount of x-ray)
primary radiation - ✔✔radiation exiting the x-ray tube
remnant(exit) - ✔✔x-rays that emerge from the patient and strike the image
receptor
inverse square law - ✔✔law that governs the intensity of x radiation; states
that intensity of the xray beam is inversely proportional to the square of the
distance between the source of the x-rays and the object
Fundamental Properties - ✔✔ROENTGEN RAYS
Compton effect - ✔✔incoming xray photon strikes loosely bound outer
shell electron, photon transfers part of energy to electron, electron removed
from orbit, able to ionize other atoms, photon has less energy than before
2
100% Pass Guarantee Katelyn Whitman, All Rights
Radiobiology) for ARRT Boards Exam
Questions and Answers 100% pass
x-ray production characteristics - ✔✔source of free electrons, acceleration
of electrons, focusing of electrons, deceleration of electrons
x-ray production - ✔✔occurs when current inside the xray tube flows from
the cathode and is suddenly stopped at the anode
bremsstrahlung - ✔✔a projectile electron misses outer shell electrons in the
target and moves in close to the nucleus (braking)
characteristic - ✔✔a projectile electron collides with an inner shell electron
of a target atom and creates a hole. Outer shell electron falls into space.
characteristic x-rays are produced at kVp levels greater than? - ✔✔70
1
100% Pass Guarantee Katelyn Whitman, All Rights
, frequency - ✔✔number of wavelengths passing a given point per unit time;
measured in hertz Hz
wavelength - ✔✔distance between successive crests of wave
quality - ✔✔kVp (strength of x-ray)
quantity - ✔✔mA (amount of x-ray)
primary radiation - ✔✔radiation exiting the x-ray tube
remnant(exit) - ✔✔x-rays that emerge from the patient and strike the image
receptor
inverse square law - ✔✔law that governs the intensity of x radiation; states
that intensity of the xray beam is inversely proportional to the square of the
distance between the source of the x-rays and the object
Fundamental Properties - ✔✔ROENTGEN RAYS
Compton effect - ✔✔incoming xray photon strikes loosely bound outer
shell electron, photon transfers part of energy to electron, electron removed
from orbit, able to ionize other atoms, photon has less energy than before
2
100% Pass Guarantee Katelyn Whitman, All Rights
