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Exam Two: Chapter 22: Direct Capture Radiography

Terms in this set (70)

Cassette-Less radiography systems do NOT use
Plate Readers
DR imaging equipment may include which of these image receptor designs?
- Wired Flat panel receptor
- Wireless flat panel receptor
- Cassette-based imaging plates
- Wired Flat panel receptor
- Wireless flat panel receptor
What aspect of a cassette-less image receptor system creates bursts of light?
Scintillator Layer
An imaging system that converts x-rays directly into an electrical signal will NOT include which of these components?
- Thin-film transistor (TFT) array
- Photodiode
- Amorphous Selenium Detector
Photodiode
Which of these devices in a cassette-less image receptor convert light into electrons?
- TFT
-Scintillator Layer
- Photodiode
- Amorphous Selenium Detector
Photodiode
Direct radiography systems typically use a thin-film transistor (TFT). This device functions to:
Collect electrical charge
Which of these devices in an image receptor can collect and convert light into an electrical signal?
- TFT
- Photodiode
- Scintillator Layer
- Charged-Coupled Device (CCD)
- Photodiode
- Charge-Coupled Device (CCD)
What compound is used in flat panel radiography receptors to convert incoming x-rays directly into an electrical signal?
Amorphous Selenium
Which of device acts as a switch to release the electric charge collected by the detector element?
Thin-Film Transistor (TFT)
Which system directly converts incoming x-ray photons to an electronic digital signal?
Direct DR systme
What collects the electric charges produced by either direct or indirect systems as an array or matrix of pixel size detector elements?
Think film transistors
Which of the following emits light isotropically, which can reduce spatial resolution?
Scintillators
What is used by direct conversion systems?
Amorphous selenium and thin film transistor
What kind of DR panels have been replaced with wireless technology and transmission to a Local Area Network
Tethered
What can be inserted into DR panels to measure the amount of force a panel has encountered during usage?
Internal sensor mechanism
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