Review
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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| What is Filtration? | show 🗑
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| Filtration is also called __________ because it removes the low energy photons. | show 🗑
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| show | Elimination of photons that would cause increased radiation dose to the patient but would not enhance the radiographic image.
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| At what keV does significant soft-tissue penetration occur? | show 🗑
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| Why is low energy photons insufficient energy? | show 🗑
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| What is a filter? | show 🗑
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| show | Aluminum...Thickness of aluminum equivalency (Al/Eq)
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| show | Half-value layer (HVL)
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| show | Inherent, Added, Compound, Compensation, and Total
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| show | Inherent Filtration
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| What structures of the tube and housing contributes to inherent filtration? | show 🗑
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| show | 0.5-1.0mm Al/Eq
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| show | pitted anode and the vaporized metal on the tube.
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| What is added filtration? | show 🗑
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| What is the collimators average filtration and where does it come from? | show 🗑
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| What is a compound filter? What is another name for this? | show 🗑
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| What materials are used in compound filtering and how are they arranged? | show 🗑
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| Why are compound filters arranged this way? | show 🗑
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| Give an example of a compound filter and in what area of radiology is it used? | show 🗑
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| show | to add an absorber to compensated for unequal absorption with the subject, thus making the over all absorption of the primary beam more equal.
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| Give examples of compensating filters | show 🗑
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| show | aluminum, lead plastic trademarked ClearPb, or plastic
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| show | Procedures on the thoracic spine, feet, and lower extremities.
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| What could a trough filter be used for? | show 🗑
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| show | The sum of inherent and added filtration. (This doesnt include any compound or compensating filter that may be added later)
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Created by:
MissPiggy