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From Flashcardlet > exposure ch14, 15,16 > Flashcards

exposure ch14, 15,16 Flashcards

0
Q

Time and density are ____ proportional

A

.Time and density are directly proportional

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1
Q

Ma and density ___ proportiona

A

.

Ma and density direct proportiona

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2
Q

Mas controls ___; mas and density are ___ proportional

A

.Mas controls ___desnity __; mas and density are direct____ proportional

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3
Q

KVp ____ density

A

.KVp affects density

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4
Q

Sid and density are ____ proportional

A

.Sid and density are inversely proportional

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5
Q

Oid and density are _____ proportional because of air gap

A

.Oid and density are inversely proportional because of air gap

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6
Q

Focal spot only affects _____ detail

A

.Focal spot only affects recorded detail

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7
Q

A grid with a higher ratio contains more lead and reduces ___

A

.A grid with a higher ratio contains more lead and reduces density

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8
Q

A larger collimating field size produces more scatter and therefore more ____

A

.A larger collimating field size produces more scatter and therefore more density

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9
Q

An increases in filtration reduces the amount of ___ in the beam

A

. An increases in filtration reduces the amount of radiation in the beam

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10
Q

A higher screen speed will produce more light and more ____

A

.A higher screen speed will produce more light and more density

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11
Q

Developer temperature and density are ___ proportional

A

.Developer temperature and density are directly proportional

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12
Q

Affects amount radiation reaching film (5)

A 
Ma
Time
Mas
KVp
Sid
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13
Q

Controls amount of radiation hitting film (5)

A

Air gap technique
Grids
Collimating
Filtration

Speeds of film- amount of density produced

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14
Q

Mas does not affect _____

A

.Mas does not affect contrast

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15
Q

Time does not affect ___

A

.Time does not affect contrast

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16
Q

Mas controls ___; does not affect ____

A

.Mas controls density; does not affect contrast

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17
Q

KVp controls _____; KVp and contrast are ____ proportional

A

.KVp controls contrast; KVp and contrast are inversely proportional

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18
Q

Sid does not affect ____

A

Sid does not affect contrast

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19
Q

Oid and contrast are _____ proportional because of air gap

A

.Oid and contrast are directly proportional because of air gap

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20
Q

Focal spot size only affects ____ detail

A

.Focal spot size only affects recorded detail

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21
Q

Grid with ______ ratio reduces more scatter

A

.Grid with higher ratio reduces more scatter

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22
Q

_____ collimating produces more scatter

A

.

Larger collimating produces more scatter

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23
Q

An _____ in filtration produces a beam with more energy; produces more scatter

A

. An increase in filtration produces a beam with more energy; produces more scatter

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24
Q

A change in screen speed usually does not affect ____

A

.A change in screen speed usually does not affect contrast

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25
Q

Developer temperature changes usually _____ contrast

A

.Developer temperature changes usually reduces contrast

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26
Q

KVp and filtration Affect penetrating factors of ____

A

Affect penetrating factors of contrast

27
Q

Seven factors affect recorded detail

A 
Sid
Oid
Focal spot
Screen speed
Film speed
Contact between screen and film
Motion
28
Q

Magnification decreases size distortion _____

A

.Magnification decreases size distortion decreases

29
Q

Ma does not affect ___ detail

A

.Ma does not affect recorded detail

30
Q

Time does not affect ____ detail

A

.Time does not affect corded detail

31
Q

Mas controls ____ and does not affect recorded detail

A

.Mas controls density and does not affect recorded detail

32
Q

KVp controls _____; does not affect ____ detail

A

KVp controls contrast; does not affect recorded detail

33
Q

Sid and recorded detail are ____ proportional

A

.Sid and recorded detail are directly proportional

34
Q

Oid and recorded detail are ____ proportionate

A

.

Oid and recorded detail are inversely proportionate

35
Q

Focal spot size and recorded detail are____ proportional

A

.inversely

36
Q

Grid ratio does ____affect recorded detail

A

.Grid ratio does not affect recorded detail

37
Q

Collimating does ____affect recorded detail

A

.Collimating does not affect recorded detail

38
Q

Filtration does ____ affect recorded detail

A

.Filtration does not affect recorded detail

39
Q

Screen speed and recorded detail are ___ proportional

A

.Screen speed and recorded detail are inversely proportional

40
Q

Developer temperature does ____affect recorded detail

A

.Screen speed and recorded detail are inversely proportional

41
Q

Ma does not affect distortion

A

.Ma does ___ affect distortion

42
Q

Time does ___ affect distortion

A

.Time does not affect distortion

43
Q

Mas controls ___ and does ___ affect distortion

A

.Mas controls density and does not affect distortion

44
Q

KVp does ___ affect distortion

A

KVp does not affect distortion.

45
Q

Sid changes, magnification changes, which changes ____

A

.Sid changes, magnification changes, which changes distortion

46
Q

Oid changes, magnification changes, changes ____

A

.Oid changes, magnification changes, changes distortion

47
Q

Focal spot size does ____ affect distortion

A

.Focal spot size does not affect distortion

48
Q

Grid ratio does ___ affect distortion

A

.Grid ratio does not affect distortion

49
Q

Collimating does ___ affect distortion

A

.Collimating does not affect distortion

50
Q

Filtration does ___affect distortion

A

.Filtration does not affect distortion

51
Q

Screen speed does __ affect distortion

A

.Screen speed does not affect distortion

52
Q

Developer temperature does not affect distortion

A

.Developer temperature does __ affect distortion

53
Q

Mas

Formula

____ of beam

Only affect ____ of density

A

Ma x time

Quantity if beam

Only affect quality of density

54
Q

Reciprocity law

Control ____ by using a shorter time and high ma, select ____ focal spot using low ma and long time, use _____technique by using long time and low ma

A

Control motion by using a shorter time and high ma, select small focal spot using low ma and long time, use breathing technique by using long time and low ma

55
Q

Density maintainence law

A

New mas. New dist^ 2
———– = __________

Old mas. Old dist^2

Sid increased- intensity of radiation will decrease and density will decrease
Sid down- intensity increases and density increases

56
Q

KVp controlling factor of ____ and affects ____

_____ controls density and no affect on contrast

A

.KVp controlling factor of contrast and affects density

Mas controls density and no affect on contrast

57
Q

KVp increased more ___ and contrast _____……. Color?……______scale

KVp decrease, less _____,color?, ____scale

A

.KVp increased more scatter and contrast decreases……. Greyer……Long scale

KVp decrease, less scatter,blacker, short scale

58
Q

15% rule

A

KVp increase - cut mas half to maintain density

KVp down- 2 x mas to maintain density

59
Q

Grid ratio factors

A 
.No grid-1
5:1-2
6:1-3
8:1-4
10/12:1-5
16:1-6

Mas x to
—
From

60
Q

Grid ratio

Changes amount ____ and affects ____

Scatter Puts ____on film

A

.
Grid ratio

Changes amount scatter and affects contrast

Scatter Puts density on film

61
Q

Collimating field size

Affects amount ____

Large field. ______ scatter

A

Affects amount scatter

Large field. More scatter

62
Q

Collimating field size formula

14x17-

10x12-

8x10-

A

.Collimating field size formula

Old mass x

14x17- 1

10x12- 1.25

8x10- 1.40

63
Q

Intensifying screen speed affects density

Speed up then density ____

Formula?

A

.Intensifying screen speed affects density

Speed up then density up

Old mas x from
——–
To

64
Q

Three phase equipment is ____x more intense than single phase

2 x more ____

A

.

65
Q

Multiplier for single phase is ___

Three phase is ____

A

.Multiplier for single phase is 2

Three phase is 1

66
Q

Xray generation formula

A

Old mas x to
—–
From

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