L4

Question 1

Which has higher quality, film or digital

Answer 1

Film

Question 2

CCD vs CMOS

Answer 2

CCD: charge pattern transfered to amplifier
-More power
-High sensitivity
CMOS: Charge directly connected to transistor

Question 3

PSP steps

Answer 3

expose
stimulating laser
reading
Intense light to reset

Question 4

Proper collimation results in

Answer 4

reduced scatter

Improved contrast

Question 5

Contrast resolution
Definition
Measured in

Answer 5

ability to distinguish different densities in the image

Measured in bits

Question 6

Spatial resolution

Answer 6

distinguish fine detail

Question 7

Detector latitude

Answer 7

ability of receptor to capture a range of exposure

Question 8

Detector sensitivity

Answer 8

Ability to respond to small amounts of raidation

Question 9

Edge enhancement diagnosis

Answer 9

cant diagnose decay or open margin because there will always be a black line

Question 10

Contrast ratio

Answer 10

1000: 1
10: 1 at an 85 degree angle

Question 11

Medical display
Contrast
Luminance
Contrast

Answer 11

1000:1
1000 cd/m
12 bit (4000 shades of gray)

Question 12

CMOS stands for

Answer 12

Complementary Metal Oxide Semiconductor

Question 13

DICOM

Answer 13

Digital Imaging and Communications in Medicine