Question 1

This is measured in cd/m2/mR/s.

Accepted Answer

A)  Brightness gain 
B)  Flux 
C)  Minification gain 
D)  Conversion factor 
A)  Brightness gain 
B)  Flux 
C)  Minification gain 
D)  Conversion factor

Question 2

Which of the following has a rectangular field of view and a wider dynamic range?

Accepted Answer

A)  Conventional image intensifier 
B)  Flat-panel detector in place of image intensifier 
C)  There is no difference between the two. 
A)  Conventional image intensifier 
B)  Flat-panel detector in place of image intensifier 
C)  There is no difference between the two.

Question 3

Early versions of digital fluoroscopy used the standard system and added:

Accepted Answer

A)  A different camera 
B)  An ADC 
C)  Videotape 
D)  None of the above 
A)  A different camera 
B)  An ADC 
C)  Videotape 
D)  None of the above

Question 4

When a CCD is exposed to light, it generates and briefly stores light energy.

Accepted Answer

A) True 
 B)False

Question 5

Magnification of the fluoroscopic image results in improved:

Accepted Answer

A)  Brightness 
B)  Spatial resolution 
C)  Contrast 
D)  Exposure 
A)  Brightness 
B)  Spatial resolution 
C)  Contrast 
D)  Exposure

Question 6

The purpose of a beam splitting mirror is to:

Accepted Answer

A)  Be able to view the fluoroscopic image on more than one television 
B)  Reduce the intensity of the image from the output phosphor 
C)  Allow spot filming to be done during fluoroscopy 
D)  None of the above 
A)  Be able to view the fluoroscopic image on more than one television 
B)  Reduce the intensity of the image from the output phosphor 
C)  Allow spot filming to be done during fluoroscopy 
D)  None of the above

Question 7

Typical television monitors have:

Accepted Answer

A)  300 lines 
B)  450 lines 
C)  525 lines 
D)  875 lines 
A)  300 lines 
B)  450 lines 
C)  525 lines 
D)  875 lines

Question 8

Each electron that interacts with the output phosphor will result in significantly fewer light photons being produced in comparison to the number of light photons it took to release that electron.

Accepted Answer

A) True 
 B)False

Question 9

___________ imaging is accomplished with fluoroscopy as opposed to radiography.

Accepted Answer

A)  Static 
B)  Still 
C)  Dynamic 
D)  Colorized 
A)  Static 
B)  Still 
C)  Dynamic 
D)  Colorized

Question 10

The analog to digital converter:

Accepted Answer

A)  Makes the electrical signal understandable to the computer 
B)  Determines the contrast resolution of the system 
C)  Determines the image matrix 
D)  All of the above 
A)  Makes the electrical signal understandable to the computer 
B)  Determines the contrast resolution of the system 
C)  Determines the image matrix 
D)  All of the above

Question 11

The __________________________ absorbs x-rays and emits light.

Accepted Answer

A)  Input phosphor 
B)  Output phosphor 
C)  Photocathode 
D)  Accelerating anode 
A)  Input phosphor 
B)  Output phosphor 
C)  Photocathode 
D)  Accelerating anode

Question 12

This part of the image intensifier absorbs light and produces electrons.

Accepted Answer

A)  Input phosphor 
B)  Output phosphor 
C)  Photocathode 
D)  Electrostatic focusing lenses 
A)  Input phosphor 
B)  Output phosphor 
C)  Photocathode 
D)  Electrostatic focusing lenses

Question 13

Which of the following require the x-ray beam to be in radiographic mode?

Accepted Answer

A)  Cassette spot filming 
B)  Film cameras for spot filming 
C)  Videotape 
D)  None of the above 
A)  Cassette spot filming 
B)  Film cameras for spot filming 
C)  Videotape 
D)  None of the above

Question 14

The electron gun in the television monitor sends out a steady stream of electrons to activate the fluorescent screen.

Accepted Answer

A) True 
 B)False

Question 15

The gain related to the decrease in size from the input to the output phosphor is the:

Accepted Answer

A)  Brightness gain 
B)  Flux 
C)  Minification gain 
D)  Conversion factor 
A)  Brightness gain 
B)  Flux 
C)  Minification gain 
D)  Conversion factor

Question 16

Which of the following does not require any additional devices for spot filming during the fluoroscopic procedure?

Accepted Answer

A)  Conventional image intensifier 
B)  Flat-panel detector in place of image intensifier 
C)  There is no difference between the two. 
A)  Conventional image intensifier 
B)  Flat-panel detector in place of image intensifier 
C)  There is no difference between the two.

Question 17

The conversion factor is a(n)___________ term for brightness gain and is typically about __________ of the brightness gain value.

Accepted Answer

A)  Older; 1% 
B)  Older; 10% 
C)  Newer; 1% 
D)  Newer; 10% 
A)  Older; 1% 
B)  Older; 10% 
C)  Newer; 1% 
D)  Newer; 10%

Question 18

The radiographer may be responsible for the ________________ inspection of the fluoroscopic equipment for QC purposes.

Accepted Answer

A)  Performance 
B)  Operational 
C)  A and B 
D)  None of the above 
A)  Performance 
B)  Operational 
C)  A and B 
D)  None of the above

Question 19

When the electron beam in the camera travels back and forth across, from the top to bottom, it is moving in a ___________ pattern.

Accepted Answer

A)  Sweep 
B)  Brush 
C)  Raster 
D)  Rooster 
A)  Sweep 
B)  Brush 
C)  Raster 
D)  Rooster

Question 20

The image intensifier is capable of resolving about ___________, while the monitor can resolve about _______________.

Accepted Answer

A)  1 to 2 Lp/mm; 1 to 2 Lp/mm 
B)  1 to 2 Lp/mm; 5 Lp/mm 
C)  5 Lp/mm; 5 Lp/mm 
D)  5 Lp/mm; 1 to 2 Lp/mm 
A)  1 to 2 Lp/mm; 1 to 2 Lp/mm 
B)  1 to 2 Lp/mm; 5 Lp/mm 
C)  5 Lp/mm; 5 Lp/mm 
D)  5 Lp/mm; 1 to 2 Lp/mm

This is measured in cd/m²/mR/s.

Which of the following has a rectangular field of view and a wider dynamic range?

Early versions of digital fluoroscopy used the standard system and added:

When a CCD is exposed to light, it generates and briefly stores light energy.

Magnification of the fluoroscopic image results in improved:

The purpose of a beam splitting mirror is to:

Typical television monitors have:

Each electron that interacts with the output phosphor will result in significantly fewer light photons being produced in comparison to the number of light photons it took to release that electron.

___________ imaging is accomplished with fluoroscopy as opposed to radiography.

The analog to digital converter:

The __________________________ absorbs x-rays and emits light.

This part of the image intensifier absorbs light and produces electrons.

Which of the following require the x-ray beam to be in radiographic mode?

The electron gun in the television monitor sends out a steady stream of electrons to activate the fluorescent screen.

The gain related to the decrease in size from the input to the output phosphor is the:

Which of the following does not require any additional devices for spot filming during the fluoroscopic procedure?

The conversion factor is a(n)_ term for brightness gain and is typically about of the brightness gain value.

The radiographer may be responsible for the ________________ inspection of the fluoroscopic equipment for QC purposes.

When the electron beam in the camera travels back and forth across, from the top to bottom, it is moving in a ___________ pattern.

The image intensifier is capable of resolving about _, while the monitor can resolve about _____.

Radiation and Its Discover

The X-Ray Beam

Image Formation and Radiographic Quality

Exposure Technique Factors

Scatter Control

Image Receptors and Image Acquisition

Image Processing and Display

Exposure Technique Selection

Image Evaluation

Filters

Exam 10: Dynamic Imaging: Fluoroscopy

This is measured in cd/m2/mR/s.

Which of the following has a rectangular field of view and a wider dynamic range?

Early versions of digital fluoroscopy used the standard system and added:

When a CCD is exposed to light, it generates and briefly stores light energy.

Magnification of the fluoroscopic image results in improved:

The purpose of a beam splitting mirror is to:

Typical television monitors have:

Each electron that interacts with the output phosphor will result in significantly fewer light photons being produced in comparison to the number of light photons it took to release that electron.

___________ imaging is accomplished with fluoroscopy as opposed to radiography.

The analog to digital converter:

The __________________________ absorbs x-rays and emits light.

This part of the image intensifier absorbs light and produces electrons.

Which of the following require the x-ray beam to be in radiographic mode?

The electron gun in the television monitor sends out a steady stream of electrons to activate the fluorescent screen.

The gain related to the decrease in size from the input to the output phosphor is the:

Which of the following does not require any additional devices for spot filming during the fluoroscopic procedure?

The conversion factor is a(n)___________ term for brightness gain and is typically about __________ of the brightness gain value.

The radiographer may be responsible for the ________________ inspection of the fluoroscopic equipment for QC purposes.

When the electron beam in the camera travels back and forth across, from the top to bottom, it is moving in a ___________ pattern.

The image intensifier is capable of resolving about ___________, while the monitor can resolve about _______________.

Radiation and Its Discover

The X-Ray Beam

Image Formation and Radiographic Quality

Exposure Technique Factors

Scatter Control

Image Receptors and Image Acquisition

Image Processing and Display

Exposure Technique Selection

Image Evaluation

Filters

This is measured in cd/m²/mR/s.

The conversion factor is a(n)_ term for brightness gain and is typically about of the brightness gain value.

The image intensifier is capable of resolving about _, while the monitor can resolve about _____.