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Glass Envelope and Protective Housing in Radiologic Technology

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Glass Envelope and Protective Housing in Radiologic Technology

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Questions and Answers

What is the most common cause of tube failure according to the text?

Localized melting of the anode

Arcing (correct)

Cracking of the anode

Pitting of the focal track

What effect can tungsten deposits inside the tube have?

Reduce tube efficiency

Increase filtration of the beam (correct)

Lead to premature filament breakage

Cause bearing burnout

How can one extend the life of a tube, based on the recommendations provided in the text?

Hold the rotor switch unnecessarily

Repeatedly expose near tube loading limits

Rotate the tube housing rapidly

Warm up the tube following manufacturer’s recommendations (correct)

What leads to the reduction in tube efficiency over time?

Pitting of the focal track Signup and view all the answers

What is a consequence of using a large technique (high mAs) on a cold anode?

Cracking of the anode Signup and view all the answers

What is the function of the protective housing in the x-ray tube?

Facilitates the dissipation of heat produced by the tube Signup and view all the answers

What is the purpose of the oil that fills the space between the glass envelope and the tube housing?

To act as an electrical insulator Signup and view all the answers

How is off-focus radiation defined in relation to x-ray production?

Interactions leading to additional x-ray production outside the focal spot Signup and view all the answers

What material is the tube housing made of, and what is it lined with?

Cast steel lined with lead Signup and view all the answers

What component of the x-ray tube encloses all of the cathode assembly and all of the anode assembly except the stator?

Glass Envelope Signup and view all the answers