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RADT 456: Equipment
ARRT registry review
| Question | Answer |
|---|---|
| What refers to the percentage drop from maximum voltage each pulse of current experiences? (303) | Voltage ripple |
| What is defined as the amount of electric charge flowing per second? (309) | Current |
| What test is used to test timer accuracy in single-phase equipment? (317) | Spinning-top test |
| What are the two major types of mobile x-ray equipment? (313) | capacitor-discharge and battery powered |
| Is the stator or the rotor located outside the glass envelope? (311) | Stator |
| The timer, autotransformer, and (pre reading) kilovoltage meter are located on which side of the x-ray circuit? (306) | Low-voltage circuit |
| What kind of tubes are x-ray tubes? (296) | Diode tubes |
| True or False. As a filament ages, vaporized tungsten may be deposited on the window and act as an additional filter. (298) | True |
| What is used to change the value of the alternating current? (300) | Transformers |
| An AEC is an example of a? (301) | Phototimer |
| Filtration that is built into the x-ray tube is known as? (305) | Inherent filtration |
| What is the input phosphor or image intensifiers usually made of? (312) | Cesium iodide |
| What is the focusing cup composed of? (316) | Molybdenum |
| What does PACS refer too? (307) | Picture archiving and communication system |
| What is there term that defines the relationship between the collimator light field and the actual x-ray field--that must be within 2% of the SID? (304) | Congruence |
| Each time an x-ray exposure is made, how much of the total energy is converted to x-rays? (309) | less than 1% |
| What type of test should specify that radiation output be consistent to within +/- 5%? (316) | Reproducibility test |
| What refers to the percentage drop from maximum voltage each pulse of current experiences? (303) | Voltage ripple |
| As filtration is added to the x-ray beam what type of x-ray photons are removed? (299) | lower-energy |
| Compton scatter and photoelectric effect are interactions between? (303) | x-ray photons and tissue atoms |
Created by:
hmchew2
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