Image Production Reveiw

Front 1

which law states electrostatic force between two charges is directly proportional to their porduct of thier quantities and inversely proport. to the square of the distance betwwen them.

Back 1

coulombs law

Front 2

one way valve that allws electorns to flow in only one direction

Back 2

diode

Front 3

iron , cobalt , and nick that are strongly atrracted.

Back 3

ferromagnetic

Front 4

self induction

Back 4

autotransformer

Front 5

radioluscent device between the patient and ir

Back 5

aec

Front 6

what surrounds the filament when the cathode generates the electrons

Back 6

space charge

Front 7

many shades of gray

Back 7

long scale

Front 8

diagnostic x ray beam may be described as

Back 8

heterogeneous

Front 9

metal casing surrounds the filament

Back 9

focusing cup

Front 10

interaction occurs with outer shell electrons

Back 10

compton

Front 11

what type of current is required for the proper operation of the x ray tube

Back 11

direct

Front 12

type of emission spectrum does charcterisitc photons have

Back 12

discrete

Front 13

binding energy of tundsten for an l shell

Back 13

12.1

Front 14

xrays below 10kev

Back 14

classical scatter

Front 15

optical density on a radiograph is proportioanl only to the toal energy imparted to the fil and independ of the time

Back 15

reciiprocity law

Front 16

most accurate time

Back 16

electronic timer

Front 17

most frequently used tube support housing system

Back 17

celing support

Front 18

vaccum components

Back 18

metal and glass

Front 19

x ray tube is improperly positioned and not an impropoerly positioned gird

Back 19

off level grid

Front 20

cathode contains

Back 20

focusing cup and filament

Front 21

step up transformer

Back 21

voltage

Front 22

useful shell of tungsten

Back 22

k shell

Front 23

very high energy photons of 1.02 mev or greater

Back 23

pair production

Front 24

compton electron also called

Back 24

secondary electron

Front 25

rotating anode disc made up of

Back 25

modybdeunum coated with tungsgtn

Front 26

electrons are focused by

Back 26

electrostatic focusing lenses

Front 27

converts light intensities into electrons

Back 27

photocathode

Front 28

the smaller the anode andgle the ___- effective focal spot

Back 28

smaller

Front 29

accelerating the electrons increasse the light intensities at the outpout pohopor is

Back 29

flux gain

Front 30

sharpness

Back 30

recorded detail

Front 31

thermionic emission occure

Back 31

cathode

Front 32

how is the effective focal spot size measured

Back 32

all the above

Front 33

primary grid used

Back 33

focused

Front 34

primary purpose of filtration

Back 34

radiatio protection

Front 35

what changes ac to dc

Back 35

reftifier

Front 36

amount of energy absorbed per unit mass is

Back 36

absorbed dose

Front 37

coherent occurs

Back 37

less than 10kev

Front 38

atomic # of tungsten

Back 38

74

Front 39

thicker part should be placed under

Back 39

cathode

Front 40

minimum change in mas

Back 40

30%

Front 41

allow radiatio to pass throuhg

Back 41

radiolucent

Front 42

absorb radiatio

Back 42

radiopaque

Front 43

distance beteween pixels

Back 43

pixel pitch

Front 44

as window level increases

Back 44

brightness increases

Front 45

where is the actual focal spot

Back 45

the beam travelling from the cathode to the anode

Front 46

flux gain and minification gain =

Back 46

brightness gain

Front 47

what percent of the beam reaches the ir

Back 47

less than 5 %

Front 48

relationship between exposure and density is

Back 48

sensitometry

Front 49

digital recepotrs have ___ latitude

Back 49

wide

Front 50

smaller target angle has a ____ effective focal spot

Back 50

smaller

Front 51

thre pahse 12 pulse generator voltage ripple

Back 51

4%