Year 1 Review

Question 1

What happens to brightness as window level increases?

Answer 1

brightness increases

Question 2

define dynamic range

Answer 2

range of exposures a digital system can retain and use to create an image

Question 3

What causes quantum mottle

Answer 3

insufficient photon quantity

Question 4

T/F An image that is overexposed should always be repeated

Answer 4

false

Question 5

What happens to contrast when you shorten your window width?

Answer 5

shorter scale of contrast

Question 6

grayscale on a digital system is the same as what?

Answer 6

scale of contrast

Question 7

The number of pixels used to create an image is called what?

Answer 7

the matrix size

Question 8

Does the use of a digital imaging system affect the process that creates size and shape distortion?

Answer 8

No

Question 9

T/F The digital imaging system is more sensitive to artifact materials.

Answer 9

True

Question 10

An image with a larger matrix will have ____ (more/less) pixels and ___ (higher/lower) spatial resolution

Answer 10

more, higher

Question 11

An image with smaller matrix will have ___ (larger/smaller) pixel pitch.

Answer 11

larger

Question 12

An image with a brighter overall appearance (more white/gray) has a ___ (wide/narrow) window width.

Answer 12

narrow