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x-ray circuit
| Question | Answer |
|---|---|
| Primary/Low voltage circuit | * main switch * fuses *autotransformer * prereading kV meter * exposure circuit/switch |
| Main breaker/switch | double blade, single throw |
| Fuses | overload of circuit with excessive amps causes the metal strips within the fuse to melt breaking the circuit |
| Autotransformer | changes voltage supplied to the primary of the transformer thereby providing various kv for x-ray tube |
| prereading kv meter | indicates kv before the exposure is made |
| Timer and xray exposure switch | control the current to the primary coil of the transformer ( duration of time) |
| Low Voltage/ Filament circuit | Supplies the heating current for the filament of the x-ray tube **rheostat ** filament ammeter ** filament transformer |
| Rheostat | Also called a variable resistor, the greater the resistance, the smaller the current |
| Filament Ammeter (lets you know the exposure is made) | connected in a series, measures filament current |
| Filament transformer (low voltage side) | step down transformer reduces current & voltage to the xray tube |
| Secondary/ High Voltage Circuit | This is the portion where the voltage is stepped up by 500:0 or 1000:1 --step up transformer --rectifiers --mA meter --x-ray tube |
| step up transformer | steps up the voltage |
| rectifiers | changes AC supplied to the transformers to DC |
| mA meter | connected in a series, measures the mA in the x-ray tube during exposure |
| x-ray tube | where the x-rays are produced |
Created by:
jhill106
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