| Term | Definition |
|---|
| Potential difference, -, + | When kilovoltage is impressed upon the tube during an exposure, a "_________ __________" is set up within the tube; i.e., cathode _ charge, anode _ charge |
| Negatively, electrons, negative, positive | __________ charged _________ are repelled by the ________ cathode and is attracted to the _______ anode at high speed |
| x-ray, heat | The impact of high speed electrons hitting a solid target produces _____ and ____. |
| .2, 99.8 | Only __% of impact energy is converted in x-rays while ____% is converted into heat (which must be dissapated from the anode) |
| Glass housing | Made of pyrex glass |
| Glass housing | Enclosure for anode and cathode |
| Unobstructed path, electron, oxidation | Each glass housing must be degassed (by baking the tube) so as to acquire a vacuum that will provide an ___________ ____ for an ________ stream as well as prevent _________ (burning up) of the filament |
| Insulating oil | Each glass housing is cylindrical in shape and immersed in "__________ ___" that prevens high voltage spark over |
| Inherent filtration | The glass housing is considered to be part of the tube's ________ __________ (part thinner than rest of tube) |
| Protective housing | Metal, lead-lined housing that prevents leakage and scatter while helping to cool down the tube |
| Excessive radiation exposure, electric shock, means to cool | The protective housing of the x-ray tube prevents _________ _________ _________, prevents ________ _____ by isolating high voltages, while providing a _____ __ ____ the tube |
| 100 mR, hr, 1m | Leakage radiation must be less that ___ __/__ at __ from the tube |
| High speed electrons, anode target | X-ray photons are produced when ____ _____ ________ strike an _____ ______ |
| Impact, kVp, half, speed of light | The force of ______ of electrons controlled by ___ and electrons travel at ____ the _____ __ _____ |
| Electron energy, two target interactions | Conversion of incident ________ ______ into x-rays is a result of ___ ______ ____________; remember that 99.8% of electron energy = heat; 0.2% produce x-rays |
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