Equipment design for Rad Protect; Managment of pt rad dose during xrays
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| show | Defines size and shape of the radiographic beam.
-Aperture diaphragm
-Cones
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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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| Collimation | show 🗑
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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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| show | Consists of sheets of Al added outside the glass window above the collimator. This along w/ inherent filtration should equal 2.5 mm Al equivalent
-For xray units above 70KVP
-2.0mm Al equivalent
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| show | Reduces the exposure to the patient’s skin and superficial tissue by absorbing most of the lower-energy photons; hardens the beam; increases quality, decreases overall intensity of radiation
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| show | Flat contact shield, shadow shields, shaped contact shield, clear lead
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| Compensating filters are | show 🗑
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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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| Tech factors for pt protection | show 🗑
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| 95% of the radiographic density on a film results from | show 🗑
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| show | 15-20% faster
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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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| C-arm minimal source to end distance | show 🗑
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| Pt average dose for mammo | show 🗑
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| Skull, body dose for CT | show 🗑
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