LMRT State Review Guaranteed Success

LMRT State Review Guaranteed Success indicator number how much radiation was absorbed into the phosphors image stitching stitching together multiple images - useful for scoliosis studies of the spine, long bone studies or angiographic imaging of peripheral vasculature. - to view as a single image. image annotation allow the technologist to inset preset text or manual text on the image contrast resolution (digital) Ability to distinguish anatomic structures having similar subject contrast spatial resolution Refers to the amount of detail present in any image.Phosphor layer thickness and pixel size determines resolution in CR. pixel A single square within a matrix matrix a series of very small boxes that form a digital image direct conversion one step process in DR where flat panel detectors convert the x-ray energy directly to an electric signal using an amorphous selenium detector for immediate viewing charged coupled device component which light enters and is converted into video or electronic signal thin film transistor used to read charges collected during an exposure photodiode A silicon solid state device sensitive to light. Converts light into an electrical signal. scintillator Amorphous silicon requires a _____ such as cesium iodide or a rare earth intensifying screen composed of gadolinum and lanthanum with oxysulfides. This also converts x-rays to visible light. flat panel detector a type of digital detector employing amorphous silicon or selenium detector material, bonded with thin-film transistor technology for digital image creation and amplification density It is the degree of blackening of a radiograph resulting from radiation exposure and processing and one of the two photographic properties that comprise visibility of detail. automatic exposure controll a device that measures the quantity of radiation that reaches the image receptor and automatically terminates the exposure when the image receptor has received the required radiation intensity high frequency generator , What uses AC and DC power converters to change the incoming line from 60Hz to 6000Hz? three phase generator ... single phase generator produce a pulsating current that alternates from positive to negative and are power by a single source of ac diode A device that permits current to flow through it in only one direction rectification The process of converting AC to DC. filament circuit low-voltage circuit; uses 3-5 volts, regulates the flow of electrical current to the filament of the x-ray tube; controlled by mA settings high voltage circuit Purpose is to provide high electrical potential needed to accelerate electrons from cathode to the anode. Controlled by kVp. autotransformer Provides a variable yet predetermined voltage to the high-voltage step-up