Question 1

The fiberoptic bundle or optical lens system is used to

Accepted Answer

A) deliver the image from the camera to the television monitor 
B) record the fluoroscopic image 
C) link the output phosphor and camera or CCD 
D) none of the above 
A) deliver the image from the camera to the television monitor 
B) record the fluoroscopic image 
C) link the output phosphor and camera or CCD 
D) none of the above C

Question 2

The image intensifier was introduced in the

Accepted Answer

A) 1920s 
B) 1950s 
C) 1970s 
D) 1980s 
A) 1920s 
B) 1950s 
C) 1970s 
D) 1980s B

Question 3

This part of the image intensifier is made of cesium iodide.

Accepted Answer

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

Question 4

Its purpose is to convert the electronic signal from the camera tube or CCD into a visible image

Accepted Answer

A) image intensifier 
B) fiberoptic bundle 
C) television monitor 
D) anode of the vidicon tube 
A) image intensifier 
B) fiberoptic bundle 
C) television monitor 
D) anode of the vidicon tube

Question 5

The diameter of the input phosphor typically measures between

Accepted Answer

A) 5 and 10 cm 
B) 15 and 30 cm 
C) 40 and 65 cm 
D) 75 and 100 cm 
A) 5 and 10 cm 
B) 15 and 30 cm 
C) 40 and 65 cm 
D) 75 and 100 cm

Question 6

A typical high-resolution monitor has

Accepted Answer

A) 825 line systems 
B) 1024 line systems 
C) 525 line systems 
D) 2034 line systems 
A) 825 line systems 
B) 1024 line systems 
C) 525 line systems 
D) 2034 line systems

Question 7

Photoemission occurs at the

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 8

The beam-splitting mirror is never used with fiberoptics.

Accepted Answer

A) True 
 B)False

Question 9

A loss of brightness around the edge of the fluoroscopic image caused by the curve of the photocathode is

Accepted Answer

A) noise 
B) pincushion appearance 
C) vignetting 
D) magnification 
A) noise 
B) pincushion appearance 
C) vignetting 
D) magnification

Question 10

The formula to determine the amount of magnification created when in magnification mode,the formula is

Accepted Answer

A) MF = full size input phosphor / selected input phosphor 
B) MF = full size input phosphor² / selected input phosphor² 
C) MF = selected input phosphor / full size input phosphor 
D) MF = selected input phosphor² / full size input phosphor² 
A) MF = full size input phosphor / selected input phosphor 
B) MF = full size input phosphor² / selected input phosphor² 
C) MF = selected input phosphor / full size input phosphor 
D) MF = selected input phosphor² / full size input phosphor²

Question 11

The diameter of the output phosphor is approximately

Accepted Answer

A) 1 cm 
B) 2.5 cm 
C) 5 cm 
D) 25 cm 
A) 1 cm 
B) 2.5 cm 
C) 5 cm 
D) 25 cm

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

Early versions of digital fluoroscopy used the standard system and added

Accepted Answer

A) a different camera 
B) an analog-to-digital converter (AD
C)  
C) videotape 
D) a digital-to-analog converter (DA
C)  
A) a different camera 
B) an analog-to-digital converter (AD
C)  
C) videotape 
D) a digital-to-analog converter (DA
C)

Question 14

Performance quality control testing should be done by a

Accepted Answer

A) radiographer 
B) medial physicist 
C) radiologist 
D) student radiographer 
A) radiographer 
B) medial physicist 
C) radiologist 
D) student radiographer

Question 15

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 16

Which of the following contains a thin layer of pixels instead of a liquid crystal layer,with each pixel containing three neon and xenon gas-filled cells?

Accepted Answer

A) Cathode ray tube monitor. 
B) Liquid crystal display (LC
D) monitor. 
C) Plasma monitor. 
D) Radiographic film. 
A) Cathode ray tube monitor. 
B) Liquid crystal display (LC
D) monitor. 
C) Plasma monitor. 
D) Radiographic film.

Question 17

Which of the following is required in the indirect-capture detector?

Accepted Answer

A) Amorphous silicon photodetector. 
B) Thin film transistor (TFT)array. 
C) A scintillator that uses cesium iodide or gadolinium oxysulfide as the phosphor. 
D) All of the above. 
A) Amorphous silicon photodetector. 
B) Thin film transistor (TFT)array. 
C) A scintillator that uses cesium iodide or gadolinium oxysulfide as the phosphor. 
D) All of the above.

Question 18

The newest fluoroscopy systems use a flat-panel detector

Accepted Answer

A) to record the spot images during fluoroscopy 
B) to record the overhead images following fluoroscopy 
C) in place of the image intensifier 
D) in addition to the image intensifier 
A) to record the spot images during fluoroscopy 
B) to record the overhead images following fluoroscopy 
C) in place of the image intensifier 
D) in addition to the image intensifier

Question 19

If a 30/23/15 cm image intensifier is operated in the 23-cm mode,the fluoroscopic image will be magnified by a factor of

Accepted Answer

A) 1.3 
B) 1.5 
C) 1.7 
D) 2 
A) 1.3 
B) 1.5 
C) 1.7 
D) 2

Question 20

The ________________ is (are)found along the entire length of the image intensifier.

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

The fiberoptic bundle or optical lens system is used to

The image intensifier was introduced in the

This part of the image intensifier is made of cesium iodide.

Its purpose is to convert the electronic signal from the camera tube or CCD into a visible image

The diameter of the input phosphor typically measures between

A typical high-resolution monitor has

Photoemission occurs at the

The beam-splitting mirror is never used with fiberoptics.

A loss of brightness around the edge of the fluoroscopic image caused by the curve of the photocathode is

The formula to determine the amount of magnification created when in magnification mode,the formula is

The diameter of the output phosphor is approximately

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

Early versions of digital fluoroscopy used the standard system and added

Performance quality control testing should be done by a

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

Which of the following contains a thin layer of pixels instead of a liquid crystal layer,with each pixel containing three neon and xenon gas-filled cells?

Which of the following is required in the indirect-capture detector?

The newest fluoroscopy systems use a flat-panel detector

If a 30/23/15 cm image intensifier is operated in the 23-cm mode,the fluoroscopic image will be magnified by a factor of

The ________________ is (are)found along the entire length of the image intensifier.

Introduction to the Imaging Sciences

Structure of the Atom

Electromagnetic and Particulate Radiation

The X-Ray Circuit

The X-Ray Tube

X-Ray Production

X-Ray Interactions With Matter

Image Production

Image Quality and Characteristics

Radiographic Exposure Technique

Scatter Control

Image Receptors

Exposure Technique Selection

Additional Equipment

Computed Tomography

Filters

Exam 14: Image Intensified Fluoroscopy

The fiberoptic bundle or optical lens system is used to

The image intensifier was introduced in the

This part of the image intensifier is made of cesium iodide.

Its purpose is to convert the electronic signal from the camera tube or CCD into a visible image

The diameter of the input phosphor typically measures between

A typical high-resolution monitor has

Photoemission occurs at the

The beam-splitting mirror is never used with fiberoptics.

A loss of brightness around the edge of the fluoroscopic image caused by the curve of the photocathode is

The formula to determine the amount of magnification created when in magnification mode,the formula is

The diameter of the output phosphor is approximately

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

Early versions of digital fluoroscopy used the standard system and added

Performance quality control testing should be done by a

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

Which of the following contains a thin layer of pixels instead of a liquid crystal layer,with each pixel containing three neon and xenon gas-filled cells?

Which of the following is required in the indirect-capture detector?

The newest fluoroscopy systems use a flat-panel detector

If a 30/23/15 cm image intensifier is operated in the 23-cm mode,the fluoroscopic image will be magnified by a factor of

The ________________ is (are)found along the entire length of the image intensifier.

Introduction to the Imaging Sciences

Structure of the Atom

Electromagnetic and Particulate Radiation

The X-Ray Circuit

The X-Ray Tube

X-Ray Production

X-Ray Interactions With Matter

Image Production

Image Quality and Characteristics

Radiographic Exposure Technique

Scatter Control

Image Receptors

Exposure Technique Selection

Additional Equipment

Computed Tomography

Filters