The x-ray interaction responsible for absorption is - Correct Answers photoelectric
The x-ray interaction responsible for scattering is - Correct Answers compton
Remnant radiation is composed of which of the following?
1. transmitted radiation
2. absorbed radiation
3. scattered radiation - Correct Answers 1, and 3 only
Which of the following factors would affect beam attenuation?
1. Tissue atomic number
2. Beam quality
3. Fog - Correct Answers 1 and 2 only
The high brightness areas on a radiographic image are created by _______________.
scattered radiation
primary radiation
absorbed radiation
transmitted radiation - Correct Answers absorbed radiation
An anatomic part that transmits the incoming x-ray photon would create an area of ____________ on
the radiographic image.
fog
high brightness
noise
low brightness - Correct Answers low brightness
Which affect the visibility of sharpness, or detail on a radiographic image?
,contrast
distortion
more than one answer
brightness - Correct Answers more than one answer
radiographic image with many shades of gray, but few differences among them is said to have
________________.
high contrast
excessive noise
short-scale contrast
low contrast - Correct Answers low contrast
Which of the following is defined as the range of exposure intensities that an image receptor can
accurately detect?
spatial resolution
long-scale contrast
dynamic range
quantum noise - Correct Answers dynamic range
What is the relationship between milliamperage and exposure time to maintain the exposure to the
image receptor?
inversely proportional
direct
inverse
directly proportional - Correct Answers inversely proportional
What exposure factor affects both the quality and quantity of the x-ray beam?
focal spot size
kVp
, SID
mA - Correct Answers kVp
A quality image is produced using 70 kVp and 25 mAs at 40" SID. If the SID is changed to 56", what
would be the new technical factors to maintain IR exposure? - Correct Answers 70 kVp and 49 mAs
Which of the following factors does not affect spatial resolution?
OID
SID
grid
focal spot size - Correct Answers grid
Which of the following factors does not affect the radiation exposure to the image receptor?
collimation
focal spot size
body habitus
compensating filters - Correct Answers focal spot size
High contrast has:
many shades of gray
increased contrast
short-scale contrast
more than one answer - Correct Answers more than one answer
If the distance from the source to image (SID) is reduced by half, what happens to the x-ray intensity at
the IR?
it is doubled
it is increased by a factor of 4
it is reduced by a factor of 4
The x-ray interaction responsible for scattering is - Correct Answers compton
Remnant radiation is composed of which of the following?
1. transmitted radiation
2. absorbed radiation
3. scattered radiation - Correct Answers 1, and 3 only
Which of the following factors would affect beam attenuation?
1. Tissue atomic number
2. Beam quality
3. Fog - Correct Answers 1 and 2 only
The high brightness areas on a radiographic image are created by _______________.
scattered radiation
primary radiation
absorbed radiation
transmitted radiation - Correct Answers absorbed radiation
An anatomic part that transmits the incoming x-ray photon would create an area of ____________ on
the radiographic image.
fog
high brightness
noise
low brightness - Correct Answers low brightness
Which affect the visibility of sharpness, or detail on a radiographic image?
,contrast
distortion
more than one answer
brightness - Correct Answers more than one answer
radiographic image with many shades of gray, but few differences among them is said to have
________________.
high contrast
excessive noise
short-scale contrast
low contrast - Correct Answers low contrast
Which of the following is defined as the range of exposure intensities that an image receptor can
accurately detect?
spatial resolution
long-scale contrast
dynamic range
quantum noise - Correct Answers dynamic range
What is the relationship between milliamperage and exposure time to maintain the exposure to the
image receptor?
inversely proportional
direct
inverse
directly proportional - Correct Answers inversely proportional
What exposure factor affects both the quality and quantity of the x-ray beam?
focal spot size
kVp
, SID
mA - Correct Answers kVp
A quality image is produced using 70 kVp and 25 mAs at 40" SID. If the SID is changed to 56", what
would be the new technical factors to maintain IR exposure? - Correct Answers 70 kVp and 49 mAs
Which of the following factors does not affect spatial resolution?
OID
SID
grid
focal spot size - Correct Answers grid
Which of the following factors does not affect the radiation exposure to the image receptor?
collimation
focal spot size
body habitus
compensating filters - Correct Answers focal spot size
High contrast has:
many shades of gray
increased contrast
short-scale contrast
more than one answer - Correct Answers more than one answer
If the distance from the source to image (SID) is reduced by half, what happens to the x-ray intensity at
the IR?
it is doubled
it is increased by a factor of 4
it is reduced by a factor of 4
