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Premium member Presentation Transcript RADIOLOGIC IMAGING EQUIPMENT: RADIOLOGIC IMAGING EQUIPMENT 1The x-ray room: The x-ray room 2Processing room: Processing room 3The x-ray room: The x-ray room 4X-ray tube control panel ancillary equipment: X-ray tube control panel ancillary equipment 5PowerPoint Presentation: 6The x-ray tube: The x-ray tube Electromagnetic Energy Spectrum 7The x-ray tube: The x-ray tube 8The x-ray tube: The x-ray tube REVIEW OF X-RAY DISCOVERY CROOKE’S TUBE WILHELM ROENTGEN’S OBSERVATIONS November 8, 1895 BERTHA ROENTGEN’S HAND 9The x-ray tube: The x-ray tube What do you need to produce ionizing radiation? 10The x-ray tube: The x-ray tube 11The x-ray tube: The x-ray tube Remember the light bulb!! 12The x-ray tube: The x-ray tube 13 The source of electronsThe x-ray tube: The x-ray tube 14 The Law of AttractionTHE X-RAY TUBE: THE X-RAY TUBE Simple car battery 15The x-ray tube: The x-ray tube 16PowerPoint Presentation: 17 Let’s make this terminal very negative Let’s make This terminal Very positivePowerPoint Presentation: 18The x-ray tube: The x-ray tube 19The x-ray tube: The x-ray tube anode cathode Glass envelope Tube housing X-ray tube 20The x-ray tube: The x-ray tube Focusing cup cathode Tungsten filament Thermionic emission Electron cloud Milli ampereage 21The x-ray tube: The x-ray tube target anode tungsten High voltage Focal track Rotating 22The x-ray tube: The x-ray tube 23THE X-RAY TUBE: THE X-RAY TUBE CATHODE ANODE VACUUM GLASS ENVELOPE CURRENT 24The x-ray tube: The x-ray tube 25The x-ray tube: The x-ray tube 26The x-ray tube: The x-ray tube 27The x-ray tube: The x-ray tube anode cathode Glass envelope Tube housing X-ray tube 28The x-ray tube: The x-ray tube 29The x-ray tube: The x-ray tube 30The x-ray tube: The x-ray tube steel casing Glass envelope Port/window oil Lead casing anode cathode Which end of tube is the positive end? Which end is the negative end? Is this a stationery or rotating anode? 31THE X-RAY TUBE : THE X-RAY TUBE What is electromagnetic spectrum? What are photons? What is radiation? What is ionizing radiation? What is x-ray? What are roentgen rays What are photons? 32PowerPoint Presentation: 33PowerPoint Presentation: 34PowerPoint Presentation: 35The x-ray tube: The x-ray tube 36The x-ray tube: The x-ray tube The amount of electrons burned off Milli-amperage Electron cloud Thermionic Emission Focusing cup ??amount of electrons??? ? How many mA are applied? 37The x-ray tube: The x-ray tube The amount of time charged is applied The longer the the milli-amps are applied, the more electrons are burned off. How many seconds are applied? 38The x-ray tube: The x-ray tube The strength of the positive charge The stronger the force of the positive charge, the faster the electrons rush toward anode, The more x-rays are generated. The force of the charge is measured by kilovoltage (kV) applied to the anode 39The x-ray tube: The x-ray tube technique 40Control panel: Control panel Where the technologist controls the x-ray machine Where technique selection occurs Always located outside the x-ray room 41Control panel: Control panel 42Contr0l panel: Contr0l panel kVp controls Strength of beam kVp more penetrating 50-110 kVp in diagnostic x-ray Controls contrast and density on image 43Control panel: Control panel mA controls the amount of electrons Time controls how long the electrons are sent to anode Frequently used as a single unit of measure mAs Controls the density of the image 44Ancillary equipment: Ancillary equipment Image Receptors Table Tube supports Grids Collimators Misc Equipment 45Image receptors: Image receptors Film cassettes CR cassettes Direct imaging Bucky tray(grid) Wall Bucky tray(grid) 46Image receptors: Image receptors Film Cassettes are light tight, with intensifying screens. They serve to hold the film safe from any damage. CR cassettes look almost identical but contain a PSP plate that is used to create the image. 47Image receptors: Image receptors 48Table : Table 49table: table 50Table: Table 51Tube supports: Tube supports Tube Suspension systems are available in 5 versions. Be sure to check the book for configurations. 52Tube supports: Tube supports Designed to help technologists with various tube locations for creative imaging. 53Tube supports: Tube supports Tube Movement Longitudinal Transverse Vertical Angling or Rolling Rotating Telescoping 54collimators: collimators 55collimators: collimators 56collimators: collimators Always collimate smaller than the image receptor 57grids: grids Device used to “clean up” the x-ray image by reducing the amount of scatter radiation reaching the image receptor Used on larger, thicker parts Built with parallel lead strips to absorb the scatter radiation 58grids: grids ??? Primary beam + - Exit Radiation 59grids: grids No grid grid 60grids: grids 61Miscellaneous equipment: Miscellaneous equipment Positioning sponges Tape Lead aprons Lead blockers Markers Sand bags linens 62Miscellaneous equipment: Miscellaneous equipment 63Miscellaneous equipment: Miscellaneous equipment 64X-ray tube control panel ancillary equipment: X-ray tube control panel ancillary equipment 65The x-ray room: The x-ray room 66Processing room: Processing room 67Processing room: Processing room Film Screen Image Production Digital Image Production 68Processing room-image production: Processing room-image production ??? Primary beam + - Exit Radiation 69Processing room-image production: Processing room-image production RADIOGRAPH- permanent record of image, by film or by computer storage 70Dark room: Dark room 71Dark room: Dark room 72Dark room: Dark room Pass Box Lockable from inside, contains cassettes Clean, dry, dustless countertop Work space be free of clutter Safe light 15 watt bulb 3 feet from film, countertop Orange or amber filter/light bulb, depends on film emulsion type Cassettes, empty and full Film bin Must be light tight Sometimes locks with door Processor Needs water supply, Must be clean Chemicals Store safely 73Dark room: Dark room 74Dark room: Dark room 75Cr reader: Cr reader CR - Computed Radiography Computed Radiography is an indirect type of imaging system. The receptor used within a CR cassette is called a photostimulable imaging plate (PSP) and it absorbs the radiation exiting the patient. The exposed plate is processed in a CR reader, where the absorbed energy is extracted. The information stored in the CR imaging plate must be processed before viewing can occur. The resultant latent image data is converted from an analog to a digital signal and a digital image is created. Computed Radiography x-ray systems predominantly use conventional x-ray tube systems. 76Cr reader: Cr reader 77review: review 78review: review 79review: review 80review: review 81The x-ray tube: The x-ray tube 82PowerPoint Presentation: 1 2 3 3 4 5 6 7. Describe Tube Travel 8. Describe tube travel 9. Describe how the tube would travel in order to direct x-ray output at #1?? 83 You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.