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Image Production And Evaluation II Final Review Game
Test Description: Review of Image Production II
Instructions: Answer all questions to get your test result.
1) Which of the following applies to the input phosphor in fluoroscopy?
A
Light emitted
B
Electrons emitted
C
Light absorbed
D
X-rays absorbed
2) As Kokak exposure indicator numbers decrease by 300, exposure
A
Decreases by a factor of 2
B
Increases by a factor of 4
C
Increases by a factor of 2
D
Decreases by a factor of 4
3) What is the primary factor influencing exposure for Computed Radiography?
A
Collimation
B
kVp
C
mAs
D
LUT
4) A pixel is also known as a:
A
Bit
B
Picture element
C
Matrix
D
Dot
5) The part of a PSP plate that includes random sizes of crystals is the:
A
Structured phosphor layer
B
Support layer
C
Turbid phosphor layer
D
Conductive layer
6) What is the output phosphor of an image intensifier composed of?
A
Cadmium tungstate
B
Cesium iodide
C
Calcium tungstate
D
Zinc cadmium sulfide
7) To prevent the Moire` artifact, it is important that grid lines and scanning laser are:
A
Oscillating
B
Perpendicular
C
Grid lines and scanning laser do not create the Moire` artifact
D
Parallel
8) In a pixel, the volume of tissue in the patient is termed:
A
Bit depth
B
Spatial resolution
C
Voxel
D
Pixel depth
9) Testing performed during a major repair is called:
A
Error testing
B
Installation testing
C
Acceptance testing
D
Routine testing
10) In a digital imaging system, the bit capacity of each pixel identifies the:
A
gray scale
B
MTF
C
dynamic range
D
spatial frequency
11) The bucky and x-ray beam alignment must be within:
A
0.5%
B
2%
C
5%
D
1%
12) A phantom image in digital imaging can result because of:
A
image blur
B
supernatural phenomena
C
backscatter
D
incomplete erasure
13) Which operating mode of a tri-focused image intensifier is associated with the least magnification?
A
6 inch
B
All have the same magnification
C
9 inch
D
14 inch
14) A high DQE will result in a ________ patient dose.
A
DQE and patient dose are not related
B
High
C
Low
D
unmeasureable
15) What is used in the active layer for indirect digital imaging?
A
cesium iodide
B
photostimulable phosphors
C
amorphous silicon
D
amorphous selenium
*select an answer for all questions
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