Xray Circuit
The side of an x-ray tube from which free electrons are created.
What is the anode?
The effect motion has on distortion
What is none?
The type of scatter that results in a recoil electron.
What is Compton scattering?
Hydrogenated amorphous silicon can be used as one of these; a portion of an IR where light in converted into an electrical charge.
What is a photodetector?
The layer that "traps" electrons during an exposure.
Alternating current changes to direct current here.
What is the rectifier?
The change to spatial resolution that occurs when the focal spot size increases.
What is a decrease in resolution?
The most commonly utilized beam restriction method.
What is collimation?
The two-step process in which x-ray photons are converted to light and then to electrical signals.
What is indirect conversion?
The two types of PSP readers.
What are point scan and line scan?
The side that houses the step up and step down transformer, the rectifier diodes, the ground, and the x-ray tube.
What is the secondary side?
The effect on IR exposure when the anode heel effect decrease.
What is an increase in exposure?
The law that states that radiation intensity and distance are indirectly proportional.
What is the inverse square law?
Initially developed by NASA this system uses a scintillator converts x-ray photons into light that are then stored in capacitors.
What is a complementary metal oxide semiconductor (CMOS) system?
The movement of the imaging plate through the PSP reader.
What is translation? (Also acceptable - slow scan direction or subscan direction)
Energy increases as voltage changes to kilovoltage here.
What is the step up transformer?
Indirect or Direct: The effect mAs and kVp have on receptor exposure.
What is a direct effect?
The three prime factors of x-ray production
What are distance, kVp, mAs?
A graphical representation of a digital image.
What is a histogram?
The circuit in the PSP that converts light into digital information.
What is the Analog-to-Digital Converter (ADC)?
The two parts that make up the filament circuit.
What are the step down transformer and mA selector?
The factors that affect receptor exposure, spatial resolution, and distortion.
What are SID and patient factors (size, pathologies, etc.)
The 4 types types of tissue found in the body listed from lowest to highest density.
What are air, fat, muscle, and bone?
The compound used in most photoconductors in digital radiography
What is amorphous selenium (a-Se)?
The layers of a PSP imaging plate in order from surface to back
What is the Protective layer, the phosphor(Active) layer, the light reflective layer, the conductive layer, the support layer, the light shielding layer, and the backing layer?
(Newer plates can have a color layer between the active and support layer)