X-Ray Tube
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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| show | ceiling support system
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| show | glass envelope
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| show | filament
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| 4. What is the most common cause of tube failure? | show 🗑
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| 5. The target of the rotating anode is usually coated with a ________ alloy. | show 🗑
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| 6. The ______ is the source of radiation in the x-ray tube. | show 🗑
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| show | 10,000 rpm
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| show | heel effect
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| 9. Tube failure can occur from ... | show 🗑
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| 10. A dual focus tube has two | show 🗑
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| 11. Each tube has its own tube rating chart to show... | show 🗑
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| show | stators
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| 13. The heel effect is caused by the ... | show 🗑
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| 14. The effective focal spot size is _____ the actual focal spot size. | show 🗑
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| show | a single excessive exposure
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| 16. Most of the heat generated at the target is due to ... | show 🗑
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| 17. The production of heat at the anode is directly proportional to ... | show 🗑
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| show | 1%
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| show | characteristic
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| show | K-shell
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| show | bremsstrahlung
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| show | 100%
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| 23. Bremsstrahlung x-rays are produced by _____ at the target. | show 🗑
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| show | released binding energy
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| show | 100
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| 26. An increase in mAs would (increase or not affect) the (amplitude or position) of the emission spectrum. | show 🗑
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| show | target material
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| show | reduced, right
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| 29. The number of useful x-rays in the beam defines x-ray... (kVp, quality, quantity or mAs) | show 🗑
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| show | 5 mR/mAs
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| 31. If filter thickness is _____, then x-ray intensity is _____. (increased or reduced) and (increased or reduced). | show 🗑
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| 32. If x-ray quantity is doubled, the optical density on the finished radiograph will be ... (reduced by half, just slightly increased or increased by a factor of two) | show 🗑
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| 33. If a technologist changes the technique from 70 kVp @ 200 mAs to 70 kVp @ 400 mAs, then the x-ray intensity will ____ and optical density will ____. (double or remain the same) both lines | show 🗑
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| show | 100
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| show | 22.2mR (inverse square law)
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| show | Both penetrability and quality
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| 37. A low quality beam would also have low ... (penetrability, quantity, mAs or intensity). | show 🗑
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| 38. Image contrast is affected by ... (beam quality, kVp or mAs). | show 🗑
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| 39. Added filtration will ____ beam quality and ____ beam quantity. (decrease or increase) both lines. | show 🗑
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| 40. The scattered x-ray from a Compton interaction usually retains ____ of the energy of the incident photon. (none, little, most, all) | show 🗑
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| 41. Compton scatter is directed at ____ degrees angle from the incident beam. (0, 180, 90, any) | show 🗑
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| show | photodisintergration
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| 43. When the mass density of the absorber is ___, it results in ____ Compton scatter. (increased or decrease) both lines | show 🗑
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| show | 0.5%
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| show | absorption and scattering
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| show | high atomic number
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| 47. The use of contrast agents increases the amount of (differential absorption, Compton scatter or photoelectric absorption) | show 🗑
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| 48. A negative contrast agent is ___. (air, iodine, barium or water) | show 🗑
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| show | the radiographic image
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| 50. If 5% of an incident beam is transmitted through a body part, then 95% of that beam was ... (scattered, attenuated, absorbed or back-scattered) | show 🗑
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Created by:
radtechstudent
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