image acquistion and evaluation
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| true/false: An increase in kVp will increase radiographic contrast. | show 🗑
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| What is the component of a CR image plate that records the radiologic image? | show 🗑
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| Unopened boxes of radiographic film should be stored how? | show 🗑
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| Compared with a low-grid ratio, what will a high-grid ratio do? | show 🗑
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| What happens to the mAs as the flim-screen speed combination is decreased? | show 🗑
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| True/False: Radiographic contrast is a result of differential tissue absorption and emulsion characteristics. | show 🗑
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| show | inadequate SID.
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| Using a short SID with a large IR will do what? | show 🗑
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| show | 8
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| what is used to remedy the effect of very dissimilar tissue densities? | show 🗑
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| show | thickness of the phosphor layer, type of phosphor used, phosphor size.
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| Does high kVp or low kVp permit greater latitude to the radiographer? | show 🗑
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| show | grid cut-off.
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| show | elongation and foreshortening
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| What does spectral matching refer to? | show 🗑
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| show | attenuation.
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| An unexposed and processed film will have a density of what? | show 🗑
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| Which methods help to reduce the production of scatter radiation? (compression, beam restriction, a grid) | show 🗑
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| show | change the exposed silver bromide crystals to black metallic silver.
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| show | at the entrance roller.
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| What is used to determine the sensitivity of a particular film emulsion? | show 🗑
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| The process of leveling and windowing of digital images determines the image? | show 🗑
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| show | contact
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| show | magnification radiography
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| show | slit camera
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| what is film emulsion having wide latitude likely to exhibit? | show 🗑
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| show | a decrease in optical density.
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| The cause of films coming from the automatic processor still damp can be what? | show 🗑
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| What can reduce the quantity of scattered radiation reaching the IR? (fast imaging system, an air gap, a stationary grid) | show 🗑
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| When a slow screen-film system is used with a fast screen-film AEC system, the resulting images are what? | show 🗑
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| show | the mAs by 30%
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| show | false.
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| As grid ratio is decreased what happens to the scale of contrast? | show 🗑
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