RAD 138 Midterm Review

The radiologic quantity used to measure equivalent dose is the _________.

• Sievert

• Gray

• Coulomb per kilogram

• Becquerel

What effect does increasing the kVp have on the quality of the beam?

• No effect

• Increased quality

• Decreased quality

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The measurement of the rate of electron flow is:

• Power

• Resistance

• Voltage

• Amperage

In order for electrical current to flow, the conducting material must be configured into a loop. This loop is called a:

• Alternating current

• Direct current

• Circuit

• Cycle

What component of the x-ray tube is the actual source of x-ray photons?

• Glass envelope

• Anode target

• Tungsten filament

• Tube housing

A material that allows the free flow of electrons is known as a:

• Conductor

• Insulator

• Rectifier

• Capacitor

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How does filtration affect the quality of the x-ray beam?

• Increases quality

• Decreases quality

• No effect

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The majority of photons are produced at the anode by what interaction?

• Characteristic

• Compton

• Photoelectric

• Bremsstrahlung

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The purpose of a rectifier in an x-ray circuit is to convert:

• DC to AC

• AC to DC

• Volts to kilovolts

• Amperes to milliamperes

The intensity of radiation from an x-ray source is 500 Coulombs/kilogram (C/kg) at 10 meters. What is the intensity at 20 meters?

• 50 C/kg

• 125 C/kg

• 575 C/kg

• 2,000 C/kg

Tags

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