UNIT 3 COMPUTED RADIOGRAPHY AND DIGITAL
RADIOGRAPHY ACTUAL EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+
Which possesses barium fluorohalide as a capturing compound for the exit beam -
Answer-computed radiography?
In a cassette-based image receptor, the front of the cassette must be made of -
Answer-a low attenuation material
Which image receptor forms a latent image that may last for a few minutes up to
several hours?
Answer-computed radiography
Which uses Cesium Iodide (Csi) as the scintillator?
Answer-indirect conversion FPDs
Place these in the correct sequence - Answer-
1. Expose plate
2. read plate
3. Erase plate
4. Post process image
Which image has the least line spread function (LSP)?
Answer-direct conversion detectors
In CR the latent image is stored in the - Answer-F- Centers
Which image receptor requires a darkroom?
- Answer-film-screen cassette
Which scintillator is typically used in the photostimulable phosphor plate?
Answer-Barium fluoride bromide
, UNIT 3 COMPUTED RADIOGRAPHY AND DIGITAL
RADIOGRAPHY ACTUAL EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+
The number of F-centers that are filled is a function of –
Answer-The number of x-ray photons absorbed by the plate
What determines pixel size in computed radiography?
Answer-The sampling frequency in the fast and slow scan directions
Which type of image receptor has the greatest fill factor?
Answer-direct digital radiography detector
Which detector material has a k-absorption edge that is best fitted for
mammography - Answer-selenium
Which will improve spatial resolution in computed radiography?
Answer-use a smaller diameter laser
Which type of image receptor is shown below?
Answer-direct capture digital radiography
What is the purpose of the ADC?
Answer-to convert an electrical signal into binary code
What is true about the image receptor shown below?
Answer-it requires "stitching" together of the images
Arrange the following in the correct sequence - Answer-
a. scintillation crystal
b. Photodiode
c. TFT Array
d. ADC
RADIOGRAPHY ACTUAL EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+
Which possesses barium fluorohalide as a capturing compound for the exit beam -
Answer-computed radiography?
In a cassette-based image receptor, the front of the cassette must be made of -
Answer-a low attenuation material
Which image receptor forms a latent image that may last for a few minutes up to
several hours?
Answer-computed radiography
Which uses Cesium Iodide (Csi) as the scintillator?
Answer-indirect conversion FPDs
Place these in the correct sequence - Answer-
1. Expose plate
2. read plate
3. Erase plate
4. Post process image
Which image has the least line spread function (LSP)?
Answer-direct conversion detectors
In CR the latent image is stored in the - Answer-F- Centers
Which image receptor requires a darkroom?
- Answer-film-screen cassette
Which scintillator is typically used in the photostimulable phosphor plate?
Answer-Barium fluoride bromide
, UNIT 3 COMPUTED RADIOGRAPHY AND DIGITAL
RADIOGRAPHY ACTUAL EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+
The number of F-centers that are filled is a function of –
Answer-The number of x-ray photons absorbed by the plate
What determines pixel size in computed radiography?
Answer-The sampling frequency in the fast and slow scan directions
Which type of image receptor has the greatest fill factor?
Answer-direct digital radiography detector
Which detector material has a k-absorption edge that is best fitted for
mammography - Answer-selenium
Which will improve spatial resolution in computed radiography?
Answer-use a smaller diameter laser
Which type of image receptor is shown below?
Answer-direct capture digital radiography
What is the purpose of the ADC?
Answer-to convert an electrical signal into binary code
What is true about the image receptor shown below?
Answer-it requires "stitching" together of the images
Arrange the following in the correct sequence - Answer-
a. scintillation crystal
b. Photodiode
c. TFT Array
d. ADC
