unit 3 pri

The distance between the radiation source and the image receptor is the:

• magnification factor

• SID

• OID

• SOD

As compared to a patient with a 24 cm thick abdomen, imaging a patient with a 20 cm thick abdomen will result in _____________ scatter being produced and ______________ image contrast.

• Less; Lower

• More; lower

• Less; higher

• More; higher

What effect will increasing SID have on recorded detail?

• Increased recorded detail

• Decreased recorded detail

• No effect on recorded detail

What effect will increasing SID have on spatial resolution?

• Decreased spatial resolution

• No effect on spatial resolution

• Increased spatial resolution

How is contrast affected by an increase in SID?

• no change

• increased

• decreased

The misrepresentation of the size of an object is:

• Shape distortion

• Magnification

• Foreshortening

• Elongation

The distance between the object being radiographed and the IR is the:

• magnification factor.

• SOD.

• SID.

• OID

Increasing part thickness decreases image contrast

• True

• False

How is IR exposure affected by an increase in SID?

• Increased

• Decreased

• No change

The property of the x-ray beam that impacts the unsharpness on the radiograph is beam:

• quality.

• quantity

• divergence

• restriction