digital imaging quiz 1 set 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | Thomas A. Edison in 1896
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| What was the early flouroscopic screen (II) made of? | show 🗑
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| Who is responsible for the development of the screen (II) in 1941? | show 🗑
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| What type of vision are the rods of the eye used for? | show 🗑
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| Where are rods found in the eye? | show 🗑
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| show | dim/low light
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| show | visua acuity, contrast and brightness differentiation
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| show | around the fovea centralis
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| What type of vision are the cones of the eye used for? | show 🗑
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| What part of the eye is the image intensifier designed to utilize? | show 🗑
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| show | ability to peserve fine detail (cones)
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| show | ability to detect differences in light levels (cones)
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| show | cornea
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| show | through the lens and onto the retina
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| how long is the image intensifier? | show 🗑
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| show | 25,000 Volts (25 kV)
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| what is the lead equivalency of the image intensifier and why? | show 🗑
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| show | convert the remnant x-ray beam to visible light
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| What is the input phosphor made of? | show 🗑
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| What is the function of the photocathode? | show 🗑
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| Photoemission | show 🗑
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| show | cesium and other e- emmiting coponents
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| show | negative, to repel e-s and direct them toward output phosphor
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| How much of what material makes up the output phosphor? | show 🗑
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| What does the output phosphor do? | show 🗑
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| show | number of input light photons / number of input x-ray photons
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| What is flux gain? | show 🗑
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| show | mA
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| What is brightness gain? | show 🗑
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Created by:
annaluz87
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