Lec 8 - Detection

Question 1

film has x ray interaction with blank

Answer 1

silver halide crystals

Question 2

advantage of double sided film

Answer 2

x ray interaction with film occurs more quickly

Question 3

duplicating film is blank film

Answer 3

single sided

Question 4

emulsion layers of film detector are made of blank

Answer 4

gelatin/silver halide crystals

Question 5

larger crystal size =

Answer 5

faster, grainier image

Question 6

disadvantage of slower film

Answer 6

more x ray exposure to patient because it’s slower

Question 7

read word document on blackboard

Answer 7

ok

Question 8

silver halide is drawn toward blank

Answer 8

electrons

Question 9

screen film has x ray interaction with film and with blank

Answer 9

phosphor screen

Question 10

screen film use blank fluorescence which boosts x ray detection by film

Answer 10

real time

Question 11

screen film is blank sided

Answer 11

double

Question 12

screen film is used for these radiographs

Answer 12

pano, cephalometric

Question 13

screen film is not a blank technique

Answer 13

digitial

Question 14

direct exposure film

Answer 14

nonscreen film

Question 15

screen film is blank exposure film and has blank x ray exposure to the patient

Answer 15

indirect, reduced

Question 16

type of digital detector used at dental school

Answer 16

PSP (photostimulable phosphor)

Question 17

psp has x ray interacting with this only which is different from screen film

Answer 17

phosphor

Question 18

digital x ray has blank exposure time compared to film

Answer 18

1/4

Question 19

PSP are the blank digital sensors

Answer 19

cheapest

Question 20

psp detector is recycled by being exposed to blank

Answer 20

a really bright light

Question 21

light emitted immediately from the phosphor

Answer 21

fluorescence

Question 22

light emitted later, because most of the photoelectrons are trapped in the phosphor

Answer 22

phosphorescence

Question 23

three types of digital radiograph detectors

Answer 23

psp, ccd, cmos

Question 24

ccd and cmos have xray interaction with silicon chip which causes electrons to be captured in blank

Answer 24

conduction band

Question 25

silicon is a true blank

Answer 25

semiconductor

Question 26

the image of record that is used in court is the one that has not been blank

Answer 26

altered

Question 27

NEVER delete this image

Answer 27

original unaltered