LRA 221 Quizzes 2024 with complete solutions Scintillators are phosphors that Produce light when absorbing X-rays A device that includes photosensititive array and small pixels that convert light into electrical charges is known as a ____ translator.
- Thin field
- Field-effect
- Thin-film
- Field-energy
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Full screen Brainpower Read More in a flat panel detector, specialized silicon integrated circuits control
- Line scanning sequences
- readout
- amplification
- analog-to-digital conversion
- Gd2O2S
- a-Se
Line scanning sequences Which of the following is used as a photoconductor
c. a-Si:h
Cesium Iodide a-Se Which of the following is not considered a scintillator?
- Gd2O2S
- Csl
- a-Se
- None of the above
a-Se 2 / 3
Flat-panel detectors that use indirect conversion technology convert
- electrical signals to light.
- light to x-rays
- x-rays to electrical signals
- X-rays to visible light
- one
- two
- three
- four
x-rays to visible light Indirect conversion in flat-panel detectors is a ____-step process.
two Detector performance is measured with all of the following
except:
- spatial resolution
- observation of flow contrast objects in a phantom
- DQE
- contrast
- rapid succession images
- over exposure
- / 3
contrast Possible causes of image lag include all except