Image Production
A device that intercepts the x-ray photons
What is an image receptor? (pg. 72)
The system where photons are absorbed by a photoconductor and immediately converted into electronic signal.
What is direct conversion digital radiography? (pg. 74)
List the 4 requirements to produce x-rays
- Vacuum OR tube envelope
-Source of e- OR filament
-Method to accelerate the e- rapidly OR voltage
-Method to stop the electrons OR target
(pg. 72)
A protective layer, phosphor layer, conductor layer, light-shielding layer, support layer, backing layer, all enclosed in a cassette.
What is the storage phosphor plate? (pg. 73)
Milliampere-seconds (mAs), Kilovoltage peak (kVp), Source-to-image Distance (SID)
What are technical factors? (pg. 72-73)
This occurs to apply proper brightness and contrast to the image, regardless of the amount of exposure received by the IR.
What is automatic rescaling? (pg. 75)
The beam of photons before it interacts with the patient
What is primary radiation? (pg. 72)
The number of shades of gray a pixel can contain is determined by this.
What is grayscale bit depth?
The amount of x-ray photons allowed to pass through material or tissue are described in one of these two ways
What is radiolucent or radiopaque (pg. 72)
Photons are first converted into light then into an electric signal.
What is indirect conversion? (pg. 74-75)