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DMI 112 Test 6 Chapter 6 CCD/CMOS Image Capture correctly answered
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DMI 112 Test 6 Chapter 6 CCD/CMOS Image Capture correctly answered
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DMI 112 Test 6 Chapter 6 CCD/CMOSImage Capture
A charge-coupled device (CCD) does all of the following except:
a) Reduce the size of the projected light image
b) Transfer the image to a capacitor
c) Convert light into x-ray photons
d) act as receptors via lenses or fiber optics - correct answer ✔✔c) Convert light into x-ray photons
The number of electron/hole pairs is related to the amount of:
a) light absorbed
b) electric charge
c) incident x-rays
d) reflected light - correct answer ✔✔a) light absorbed
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 - correct answer ✔✔b) polysilicon layer
The insulating layer in a CCD chip is the:
a) polygonal layer
b) silicon substrate
c) silicon dioxide layer
d) monosilicon layer - correct answer ✔✔c) silicon dioxide layer
, A system that used scintillators that convert x-rays to light, light to electric charge, and store the charge
in capacitors is known as a:
a) CCD
b) ADC
c) image intensifier
d) CMOS - correct answer ✔✔d) CMOS
A solid chemical element or compound doped with impurities that make it highly conductive is known as
a:
a) dopant
b) semiconductor
c) transistor
d) capacitor - correct answer ✔✔b) semiconductor
Most CMOS detectors use both N-type and P-type transistors to form the electrically controlled gate.
a) true
b) false - correct answer ✔✔a) true
Which of the two technologies, CCDs or CMOS, is more susceptible to noise, has a lower light sensitivity,
uses very little power, and is inexpensive to manufacture?
CCD
CMOS - correct answer ✔✔CMOS
The oldest indirect systems used (CCD or CMOS) to acquire the image. - correct answer ✔✔CCD
Light is sent from the scintillator to the CCD via: - correct answer ✔✔lenses or fiber optics
A CCD converts ___ to ___ - correct answer ✔✔light to electrons (then electric charge)
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