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15 Cards in this Set
- Front
- Back
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What does the cathode produce? |
Electrons |
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What material is the cathode made of and why? |
Tungsten filament as it has a high atomic number and melting point |
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What is the role of the focusing cup and where is it located? |
Channel electron beam to keep it narrow to hit the target; around the filament |
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What contains the target? |
Anode |
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What is the role of the light beam diaphragm? |
Portrays primary beam with visible light |
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What allows for primary bean collimation? |
Moveable metal plates |
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What is the purpose of the line voltage compensator? |
Controls fluctuations in the mains electricity |
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What will fluctuations in mains electricity cause? |
Inconsistent xray output |
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Where is the intensifying screen located? |
Inside the casette |
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What is the purpose of an auto transformer? |
Automatically controls electrical fluctuations in large xray machines |
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What is used to measure tissue depth? |
Calliper |
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Where is the grid placed? |
Between the patient and the cassette |
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What is the role of the casette? |
Absorb scatter |
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When using a grid, what must be done to the mA? |
Increase it using grid factor |
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How does the intensifying screen reduce exposure times? |
Photons emerging from patient are converted to visible light |
