| Term | Definition |
|---|
| Anode | Serves as a target for electrons; its actual site of x-ray production |
| Anode | Conducts high voltage back to generator |
| Anode | Primary thermal conductor |
| Stationary anodes | A type of anode (obsolete) designed as a 4mm tungsten button embedded in a copper bar |
| Tungsten | Target for electrons |
| Copper | Conducts heat away from the target during x-ray production (old method) |
| Rotating | Most commonly used type of anode today |
| Circular disc, armature | Modern anodes are designed with a 4" diameter mushroom shaped ________ ____ with an ________ attached to a motor |
| molybdenum, tungsten rhenium alloy | Modern anodes are made from a ___________ disc coated with a ________-_______ _____ |
| 90,10 | Anodes commonly used today contain __% tungsten and __% rhenium |
| Tungsten | Has a high atomic # of 74 (for more efficient x-ray production) |
| Tungsten | Has a high melting point; 3370 C |
| Rhenium | The material in an anode that provides a smoother surface; less pitting |
| Graphite | Material for backing of anode disc; doubles heat loading capability without wear on bearing |
| 3000, 10000 | Anode must be rotating at high speed (____-_____ rpm) during x-ray production (rotor) |
| Heat dissipation, cool surface | Rotation of an anode assures ____ ___________ as well as a ____ _______ for electron bombardment; spreads heat via a larger area |
| 200 | Rapid rotation can increase the heat loading capabilities of an anode by about ___ times |
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