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Equipment design for Rad Protect; Managment of pt rad dose during xrays

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Question
Answer
Collimators   show
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show Positive beam limitation; A feature of current radiographic collimators that automatically adjusts the collimators so that the radiation field size matches the film size  
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show Internal beam limitation starts with the upper shutters, then the lower shutters which are controlled by the radiographer; -Stops the production of scatter radiation by reducing off-focus or stem radiation -Reduces patient exposure  
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show 15cms below collimator  
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show Includes the glass envelope encasing the tube, the insulating oil surrounding the tube, the glass window if the tube housing; .5mmAl Equivalent  
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Added filtration   show
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Filtration (4)   show
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show Flat contact shield, shadow shields, shaped contact shield, clear lead  
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show Aluminum or lead inserted between the s-ray source and the patient to modify the quality of the beam across the field of view  
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Compensating filters partially..   show
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Wedge filter   show
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show Comp filter; bilateral wedge filter the filter is thin in the center and the sides are thicker  
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show Use higher kvp and lower mas. As kVp increases & mAs decreases there is a reduction in contrast. Must be a balance  
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show the light emitted from the intensifying screens  
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Rare earth screens are   show
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show When the amount of the silver halide in the film is increased  
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Radiographic Grid   show
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Air Gap Grid   show
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show SSD must be at least 12 inches (30cm)  
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show 12 inches  
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Pt average dose for mammo   show
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Skull, body dose for CT   show
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Created by: rachelbeatty4
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