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Vocab

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Term
Definition
Autotracking   show
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Anode   show
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show Grid that is an integral part of the x-ray table, located below the tabletop and above a cassette receptor tray. It decreases the amount of scatter radiation reaching the image receptor, which improves image quality increases contrast  
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show Lightproof holder for the image receptor. In computed radiography, the cassette holds the reusable photostimulable phosphor imaging plate; in conventional film-screen radiography, the cassette contains intensifying screens and a sheet of film  
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show Negative electrode of the x-ray tube  
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show Diaphragm or system of diaphragms made of an absorbing material; designed to define the dimensions and direction of a beam of radiation. This device consists of four rectilinear radiopaque blades that are adjustable to control the x-rays field size &shape  
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show Acquisition of static images in an electronic fashion; conversion of images to a digital format for image manipulation, enhancement, storage, and networking  
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show Electrical component that possesses polarity with a negative and positive terminal  
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DR Panel   show
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show Type of digital detector employing amorphous silicon or selenium material bonded with thin-film transistor technology for digital image creation and amplification  
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show Device used for dynamic radiographic examinations; usually consists of an x-ray tube situated underneath the x-ray table and an electronic image detector situated over the x-ray table  
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show Examination by means of the fluoroscope, employing image intensification  
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Goniometer   show
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show Radiographic image created on a polyester film medium  
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show Invisible image created after x-ray exposure and before image processing  
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Longitudinal   show
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Orthogonal   show
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show Mechanical support for suspending the x-ray tube and collimator assembly from the ceiling of the radiography room  
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Picture Archival and Communication System (PACS)   show
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Positive Beam Limitation (PBL)   show
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show Manipulation of medical images after they have been acquired through x-ray exposure in order to improve image quality and diagnostic yield  
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show Special type of glass that can withstand very high temperatures from the x-ray tube anode  
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show A receptor of x-radiation that intercepts the primary beam and prevents exposure if not interlocked with the central ray of the x-ray beam  
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show Describes a material that easily transmits x-ray energy with very little absorption  
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show Images in which dynamic patient motion is visualized instantly as fluoroscopic imaging is occurring  
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show All radiation exiting the patient during exposure and ultimately striking the receptor  
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show Visualization of x-ray images using a video monitor for display and interpretation  
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Spot Film   show
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Tether   show
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Transverse   show
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Trendelenburg Tilt   show
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show Pivoting the tube at the point where it is attached to its support  
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Vertical   show
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X-Ray Tube   show
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show Equipment consisting of the x-ray tube, collimator, and operator controls; permits manipulation of the x-ray tube in many directions for proper positioning  
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