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chapter 6 CCD d questions and answers already solved 2024
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chapter 6 CCD d questions and answers already solved 2024
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chapter 6 CCD/CMOS image capturewhat is the older indirect conversion digital radiography system - correct
answer ✔Charged coupled device
What does CCD stand for - correct answer ✔Charged coupling device
What it the sequence for a CCD - correct answer ✔xray photons interact with
a scintillator material, signal is transmitted by lenses or fiberoptic to the CDC,
charge is stored in a sequential pattern and released line by line and sent to
the ADC
What is CDC made up of - correct answer ✔a photosensitive receptor and
electronics embedded in a silicon chip
In a CCD when the incidental light from a scintillator strikes the detector what
are produced - correct answer ✔electron hole pairs
Is there a relationship between electron pairs produced and amount of light
produced - correct answer ✔yes
How many electrodes are in the DEL - correct answer ✔3
What are DELs formed by - correct answer ✔voltage gates that open and
close during readout
ROW BY ROW is commonly known as what - correct answer ✔bucket
brigade scheme
, overfill of DELs will cause what - correct answer ✔blooming effect
What occurs with the blooming effect - correct answer ✔excess electrons
spill out of the DEL into adjacent DEL
How big are CCD chips - correct answer ✔2-4cm
reducing the image size involves 3 components which are - correct answer
✔the scintillator, light collection component, noise
What does the scintillator and it construction determine - correct answer
✔how many of the incident x-ray photos are absorbed, how much light is
produced, the wavelength or color of the light
What does DEL stand for - correct answer ✔detector element
What does ADC stand for - correct answer ✔analog to digital converter
What does CMOS stand for - correct answer ✔complementary metal-oxide
semiconductor
A Gd2O2S scintillator is known as what type of phosphor - correct answer
✔turbid, unstructured
What does CSL stand for - correct answer ✔Cesium Iodide detectors
What type of scintillator is structured with needle like crystals - correct answer
✔CSL
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