Fluro
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| show | Patterson CB2
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| Patterson CB2 screens were composed of: | show 🗑
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| Patterson CB2 screens emitted what kind of light? | show 🗑
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| show | low bightness levels of the image low contrast of image only view one person at a time high radiation exposure to the PT dependence of rod vision work in total darkness
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| Light enters through which part of the eye? | show 🗑
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| -membrane lining the inside surface of the eye | show 🗑
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| two types of cells contained in the retina | show 🗑
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| Cones are used for what kind of vision? | show 🗑
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| rods are used for what kind of vision? | show 🗑
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| - ablility to discriminate small images | show 🗑
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| show | 2%
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| show | image intensification
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| show | xray photons ; light photons
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| show | cesium iodide
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| Photocathode takes ____ and emits ____ | show 🗑
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| show | the photocathe bc it takes alot of light photons to emit an electron
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| Output phosphor converts ____ to _____ | show 🗑
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| What surronds the output phosphor? | show 🗑
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| What is the purpose of the electrostatic lens? | show 🗑
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| show | brighter
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| How does image intensify? | show 🗑
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| - the term given to the intensity of light given off at the output phosphor in relation to the light given off by a Patterson CB-2 | show 🗑
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| - the measurement based on the comparison of light given off at the output phosphor in relation with the light given off by the input phosphor | show 🗑
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| - the random fluctuation of brightness over a given area caused by the number of light photons available at any given instant of time for that area | show 🗑
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| - the ability of an amplifier to differentiate very small objects | show 🗑
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| - consists of one opaque bar and one equally wide opening on a test pattern | show 🗑
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| - when electrons leave the photo emissive layer of the input phosphor and get pulled away from their path by outside magnetic forces | show 🗑
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| show | covar ring
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| show | contrast
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| show | contrast sensitivity
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| show | focusing
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| - photoelectrons from the photocathode meet in the center and ionize some gas molecules which causes an area on the output phosphor to be lacking electrons and shows up as bright spots | show 🗑
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| show | gettering devices
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| - loss of light at the periphery of the image | show 🗑
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| show | magnified
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| Increasing magnification, will have what effect on pt dose? | show 🗑
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| show | Automatic brightness control
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| show | automatic gain control
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| - compensates for part thickness changes as the pt is moved during the exam | show 🗑
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| Where is the brightness control knob located? | show 🗑
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| kV rec: gallbladder | show 🗑
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| show | 70-80
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| kV rec: myelogram | show 🗑
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| show | 80-90
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| show | 100-110
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| kV rec: Small Bowel | show 🗑
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| show | 110-120
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| show | 5 min
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| show | black
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| show | increases
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| Adjust _____ first, then _____ | show 🗑
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| To reduce unwanted magnification, the fluoro tower should be? | show 🗑
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| show | 38 cm on stationary 30 cm on mobile
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| show | decreases
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| Filtration must be at least ____ mm AL | show 🗑
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| Bucky slot cover must be at least ____ Pb equ. | show 🗑
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| protective curtain must be at least ____pB equ. and must measure _______ cm | show 🗑
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| show | 2.1 R / min for each mA operation at 80 kVp
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| What is the max intensity during fluoro? | show 🗑
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| For every milliampere of fluoroscopic tech, one can assume a tabletop intensity of | show 🗑
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| What is the most commonly used camera tubes? | show 🗑
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| in a TV camera, what serves as the cathode? | show 🗑
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| in a TV camera, what serves as the anode? | show 🗑
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| an electron beam forms a light image on the TV screen by producing a .... | show 🗑
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| the electron beam starts in the upper-left corner of the screen and moves to the upper right corner to produce | show 🗑
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| the electron beam is then blanked and returns to the left side of the screen.... | show 🗑
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| another term for turned off | show 🗑
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| Raster pattern, active trace, horizontal retrace all form the.... | show 🗑
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| the elctron beam is turned off and forms a ______ at the top of the screen | show 🗑
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| show | 525
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| show | tv monitor
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