Direct or Indirect? Open Ended Fill In The Blank
100
Indirect
Uses a scintillator:
100
Cesium Iodide or Gadolinium
The capturing element for the indirect conversion digital detector is made out of what?
100
Highest
Indirect-conversion DR plates has the ____ DQE, at 77%.
200
Indirect
____ > Csl, Gd > Photodiode (Amorphous Silicon) > TFT
200
TFT
Which part of a flat-panel DR system is made up of layers on a glass substrate?
200
Electric charge
The photodiode for direct digital detectors converts x-ray photons to ____.
300
Direct
____ > Photodiode (Amorphous Selenium) > TFT
300
Over-magnified
What is the most likely cause for a “pixelly” digital image?
300
Fiber optics
For the indirect digital detectors the coupling element can be amorphous silicon or ____.
400
Indirect
____ > Csl > Fiber Optics > CCD/CMOS
400
X-ray
The capturing element for the indirect conversion digital detector converts what photons into light photons?
400
Amorphous Selenium
The photodiode for the direct conversion digital detector is made out of ____.
500
Indirect
In ____-conversion DR systems, the dispersion of light emitted from molecules of cesium iodide is reduced by using crystalline phosphor structure.
500
Sharpness
Compared to indirect-conversion DR systems, even though direct-conversion DR systems result in increased patient dose, they continue in use because of their higher:
500
Thin Film Transistor
T____ F____ T____






Digital Detectors: Direct vs. Indirect

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