RADT 146- Intro- Unit 4- Radiographic Technique Part 1 exam with correct answers

Radiography is both an - correct answer ✔art and a science
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How is radiography a science - correct answer ✔technologist produce
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radiographs by way of operating equipment that produce x rays
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How is radiography an art - correct answer ✔must be skilled in the use of
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"technique" factors that consistently produce good radiographs
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Technique - correct answer ✔the systematic procedure to produce a high
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quality radiograph. It includes the ability to select appropriate factors to
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produce an x ray beam that will adequately penetrate the body part and
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provide the appropriate level of blackening (density) and subject contrast on
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the film
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____ and ____ of how these factors ____ and _____ to produce a diagnostic
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radiograph is a - correct answer ✔knowledge and understanding, interrelate,
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and combine science
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Another term for how we are going to use the combination of kV, mA and time
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to create an image - correct answer ✔technique
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Exposure factors- Factors governing density - correct answer ✔- Kilovoltage (kV)
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,- Milliampere seconds (mAs)
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- Distance
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Kilovoltage- define - correct answer ✔The force that accelerates the electrons
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from cathode to anode
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What is the force that accelerates the electrons from the cathode to the anode -
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correct answer ✔kilovoltage (kV)
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What factor controls the electrons being boiled off at the filament? - correct
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answer ✔mA or mAs
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What factor is the driving force? - correct answer ✔kilovoltage (kV)
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The higher the kV... - correct answer ✔the stronger the x ray, the stronger the
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penetrating ability
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Does kV affect how many electrons are produced? - correct answer ✔no! it just
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affects quality
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How do x rays travel - correct answer ✔through matter in a wave like fashion
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What travels though matter in a wave like fashion - correct answer ✔x rays
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Wavelength is the distance from - correct answer ✔one crest of the wave to the
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crest of the next wave
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, valley to valley / /




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one corresponding point to the next corresponding point
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How do we determine energy of the x ray - correct answer ✔by its wavelength
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and frequency
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What is the relationship between energy, wavelength and frequency - correct
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answer ✔energy and frequency are directly related
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wavelength is inversely related / / /




If wavelength decreases what happens to frequency and energy - correct
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/answer ✔they are inversely related. frequency and energy will go up
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What happens if frequency goes up? - correct answer ✔energy goes up,
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wavlength decreases.
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An increase in kV will produce x ray photons of ___ wavelengths - correct
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answer ✔shorter wavelengths
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An increase in kV produces ___ x ray photons having ___ energy levels - correct
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answer ✔more, higher
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Types of variation in attenuation is going to give us - correct answer ✔contrast
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Higher contrast = - correct answer ✔black and whites
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