Chapter 14

Which of the following is NOT a component of geometrical integrity?

• Sharpness

• Magnification

• Shape distortion

• Contrast

What is the technical term for the sharpness of a radiograph?

• Resolution

• Penumbra

• Spatial resolution

• Magnification

What is the term used to describe the blur in imaging?

• Umbra

• Penumbra

• Resolution

• Distortion

Which factor is NOT involved in measuring unsharpness?

• Source to object distance (SOD)

• Object image receptor distance (OID)

• Size of the focal spot in the tube

• Angle of the tube

What does the formula "Unsharpness = Penumbra = (FS × OID) / SOD" calculate?

• Magnification

• Shape distortion

• Unsharpness/Penumbra

• Spatial resolution

Which tool is used to gauge sharpness or spatial resolution in radiography?

• Line pair tool

• Caliper

• Ruler

• Protractor

Which of the following is NOT a factor affecting the sharpness of a radiograph?

• Motion

• Geometry

• Color

• Focal Spot size

What happens to image resolution if motion can be controlled during an x-ray?

• It decreases

• It increases

• It remains the same

• It becomes unpredictable

How is magnification in a radiographic image determined?

• By the ratio of SOD to SID

• By the ratio of SID to SOD

• By the ratio of SID to OID

• By the ratio of OID to SOD

What are the three components of geometrical integrity?

• Clarity, contrast, and resolution

• Sharpness, magnification, and shape distortion

• Brightness, noise, and intensity

• Focus, exposure, and density