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RADT465Eq. Oper.& QC
ARRT Registry Review
| Question | Answer |
|---|---|
| What is a grid-controlled tube? | Type of x-ray tube designed to turn on and off rapidly, providing multiple short, precise exposures. (pg. 279) |
| A slit-camera is used to measure what? | Focal-Spot Size and Spatial Resolution (pg. 282) |
| What's the function of the motor? | Converts electrical energy to mechanical energy. (pg. 282) |
| What is the image intensifier? | Device that receives the remnant beam, converts it into light, and then increases the brightness of that light. (pg. 283) |
| List characteristics of the element tungsten. | Metallic Element, Ready Dissipation of Heat, High Melting Point and High Atomic Number. (pg. 283) |
| What happens in Bremsstrahlung radiation? | A high-speed electron enters the tungsten target and is attracted to the positive nucleus of a tungsten atom and, in the process, is decelerated. (pg. 284) |
| Characteristics of x-ray photons include: | A penetrating effect on all matter and an ionizing effect on air (pg. 285) |
| A spinning top device can be used to evaluate what? | Timer Accuracy and Rectifier Failure. (pg. 287) |
| What does a solid-state Diode do? | Device used to change alternating current to unidirectional current. (pg. 287) |
| What is current? | Describes the amount of electric charge flowing per second. (pg. 288) |
| What can vary the brightness level of the fluoroscopic image? | Milliamperage, Kilovoltage, and Patient Thickness. (pg. 288) |
| List the three component parts of a CT imaging system: | High-Frequency Generator, X-ray Tube, and Operator Console. (pg. 288) |
| With what frequency must radiographic equipment be checked for linearity and reproducibility? | Annually (pg. 289) |
| What is a rheostat? | Device used to control voltage by varying resistance. (pg. 292) |
| What 3 factors will the anode angle have an effect on? | Severity of the heel effect, Focal-Spot Size and Heat-Load Capacity. (pg. 292) |
| What are phototimers? | Light-sensitive AEC devices. (pg. 292) |
| What two materials would be appropriate for the IP front? | Magnesium and Bakelite. (pg. 293) |
| How often are radiographic equipment kV settings required to be evaluated? | Annually (pg. 293) |
| What is inherent filtration? | The filtering effect of the x-ray tube's glass envelope and its oil coolant. (pg. 294) |
| Accurate operation of the AEC device depends on what? | Positioning of the object with respect to the photocell and Beam Restriction (pg. 294) |
| What is composed of cesium iodide? | The image intensifier's input phosphor. (pg. 294) |
| A photostimulable phosphor plate is used with what? | CR (pg. 294) |
| What is the function of the spinning top? | Device used to test the accuracy of the x-ray timer. (pg. 294) |
Created by:
arsturgill
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