Image Production (Digital Imaging)

Question 1

What does MTF stand for and what is it used for?

Answer 1

Modulation Transfer Function; used to express recorded detail/resolution

Question 2

T/F: Alpha and Beta radiation are both electromagnetic radiation.

Answer 2

false; they’re particulate radiation

Question 3

In fluoroscopy, what does road-mapping do?

Answer 3

allows for “last image hold” on the display monitor; helps eliminate the need for continuous exposure and aids in guidance wire placement.

Question 4

The ability of an x-ray unit to produce constant radiation output, at a given mA, using various combinations of mA and time is called:

Answer 4

Linearity; it’s a QA test factor

Question 5

Repeated exposures at a given technique provide consistent intensity is called:

Answer 5

Reproducibility; it’s a QA test factor