The exposure latitude of digital projection radiography responds in a ______________
manner.
A. Nonlinear
B. Linear
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B. Linear
Which of the following are not found in an AMFPI?
A. a-Si TFT with CsI
B. a-Se with TFT
C. PSP
D. Scintillator
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, C. PSP
Which of the two technologies, CCDs or CMOS, is more susceptible to noise, has the
lower light sensitivity, uses very little power, and is inexpensive to manufacture?
A. CCD
B. CMOS
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B. CMOS
After processing the image, strange artifacts are present that look metallic but are not
present on the patient or table. Which of the following could be the cause of these
artifacts.
A. There were snaps and zippers on the patient's clothing
B. The wrong grid was used
C. The cassette was backward
D. The bucky was too slow
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C. The cassette was too slow
The layer in a CCD chip that contains the electron gates is the:
A. Silicon dioxide layer
B. Polysilicon layer
C. Silicon substrate
D. All of the above
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, B. Polysilicon layer
Which detector(s) converts x-ray energy directly into electrons?
A. a-Si TFT with CsI
B. a-Se with TFT
C. a-Si TFT with Gd2O2S
D. All of the above
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B. a-Se with TFT
Too little mAs can cause which artifact?
A. Overexposure
B. Quantum mottle
C. Moire effect
D. Scatter
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B. Quantum mottle
The useful signal is determined during which part of image processing?
A. Imaging sampling
B. Histogram analysis
C. Exposure indices analysis
D. Digitization
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manner.
A. Nonlinear
B. Linear
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B. Linear
Which of the following are not found in an AMFPI?
A. a-Si TFT with CsI
B. a-Se with TFT
C. PSP
D. Scintillator
Give this one a try later!
, C. PSP
Which of the two technologies, CCDs or CMOS, is more susceptible to noise, has the
lower light sensitivity, uses very little power, and is inexpensive to manufacture?
A. CCD
B. CMOS
Give this one a try later!
B. CMOS
After processing the image, strange artifacts are present that look metallic but are not
present on the patient or table. Which of the following could be the cause of these
artifacts.
A. There were snaps and zippers on the patient's clothing
B. The wrong grid was used
C. The cassette was backward
D. The bucky was too slow
Give this one a try later!
C. The cassette was too slow
The layer in a CCD chip that contains the electron gates is the:
A. Silicon dioxide layer
B. Polysilicon layer
C. Silicon substrate
D. All of the above
Give this one a try later!
, B. Polysilicon layer
Which detector(s) converts x-ray energy directly into electrons?
A. a-Si TFT with CsI
B. a-Se with TFT
C. a-Si TFT with Gd2O2S
D. All of the above
Give this one a try later!
B. a-Se with TFT
Too little mAs can cause which artifact?
A. Overexposure
B. Quantum mottle
C. Moire effect
D. Scatter
Give this one a try later!
B. Quantum mottle
The useful signal is determined during which part of image processing?
A. Imaging sampling
B. Histogram analysis
C. Exposure indices analysis
D. Digitization
Give this one a try later!
