FINAL RAD 400 STUDY GUIDE || 100% VERIFIED
ANSWERS.
Compton scatter correct answers The x-ray photon is deflected from its path during its passage
through matter
Coherent scattering correct answers An interaction that occurs with low energy x-rays, typically
below the diagnostic range. The incoming photon interacts with the atom, causing it to become
excited. The x-ray does not lose energy but changes direction.
characteristic interaction correct answers The incident electron interacts with an inner-shell
electron, knocking out the inner-shell electron and continuing in a slightly different direction,
which creates a hole in the inner shell, making the shell unstable.
DNR (do not resuscitate) correct answers an order that tells medical professionals not to perform
CPR
Occupational Dose Limits correct answers 5 rem (50 mSv)
Scatter radiation/compton correct answers Causes occupational exposure
Cells correct answers Oxygenated material most sensitive to radiation
Absorbed dose is measured in correct answers Grays (Gy)
PSP storage plate layers correct answers Phosphor layer made of europium activated barium
fluorohalide
The unit of roentgen applies only to correct answers - x-rays
, - gamma rays
- interactions in air
cell division correct answers Process by which a cell divides into two new daughter cells
inverse square law correct answers the intensity of radiation is inversely proportional to the
square of the distance from the source of radiation
inverse square law formula correct answers I₁(D₁)² = I₂(D₂)²
blowout fracture correct answers A fracture of the orbit or of the bones that support the floor of
the orbit.
Aluminum filtration correct answers Must have at least 1.5mm of total aluminum filtration for up
to and including 70 kVp. Requires 2.5mm above 70 kVp
wavelength and frequency correct answers inversely proportional
Wavelength correct answers The distance between two corresponding parts of a wave
Frequency correct answers the number of complete wavelengths that pass a point in a given time
air gap technique correct answers Alternative to using a radiographic grid to reduce scattered
radiation during certain examinations
thermonic emission correct answers the releasing of electrons from the cathode due to increased
heat
ANSWERS.
Compton scatter correct answers The x-ray photon is deflected from its path during its passage
through matter
Coherent scattering correct answers An interaction that occurs with low energy x-rays, typically
below the diagnostic range. The incoming photon interacts with the atom, causing it to become
excited. The x-ray does not lose energy but changes direction.
characteristic interaction correct answers The incident electron interacts with an inner-shell
electron, knocking out the inner-shell electron and continuing in a slightly different direction,
which creates a hole in the inner shell, making the shell unstable.
DNR (do not resuscitate) correct answers an order that tells medical professionals not to perform
CPR
Occupational Dose Limits correct answers 5 rem (50 mSv)
Scatter radiation/compton correct answers Causes occupational exposure
Cells correct answers Oxygenated material most sensitive to radiation
Absorbed dose is measured in correct answers Grays (Gy)
PSP storage plate layers correct answers Phosphor layer made of europium activated barium
fluorohalide
The unit of roentgen applies only to correct answers - x-rays
, - gamma rays
- interactions in air
cell division correct answers Process by which a cell divides into two new daughter cells
inverse square law correct answers the intensity of radiation is inversely proportional to the
square of the distance from the source of radiation
inverse square law formula correct answers I₁(D₁)² = I₂(D₂)²
blowout fracture correct answers A fracture of the orbit or of the bones that support the floor of
the orbit.
Aluminum filtration correct answers Must have at least 1.5mm of total aluminum filtration for up
to and including 70 kVp. Requires 2.5mm above 70 kVp
wavelength and frequency correct answers inversely proportional
Wavelength correct answers The distance between two corresponding parts of a wave
Frequency correct answers the number of complete wavelengths that pass a point in a given time
air gap technique correct answers Alternative to using a radiographic grid to reduce scattered
radiation during certain examinations
thermonic emission correct answers the releasing of electrons from the cathode due to increased
heat
