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20 Cards in this Set
- Front
- Back
which of the following is true concerning atomic structure?
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the strongest binding energy for electrons is found closest to the nucleus.
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identify the term for an atom that has lost an electron from its orbit
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An ion.
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identify which of the following processes occurs with ionization
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an electron is diplaced from its orbit.
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identify which of the following is not a type of particulate radiation
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nucleons.
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identify which of the following is not a type of electromagnetic radiation.
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electrons
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identify which of the following is not a property of x rays
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the ability to fluorescent all materials
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identify the part of the x ray tube that contains the focal spot
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anode
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identify the part of the x ray tube where x ray photons are produced
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at the positively charged anode.
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identify the best description of primary radiation
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the beam that exits the tube head
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identify the term used to describe the x ray beam that exits the position indicating device
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secondary radiation
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identify the characteristics of x rays produced with a high kilovoltage
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more penetrating and shorter wavelengths
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identify the function of the kilovoltage setting on the x ray machine
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controls the penetrating power of the x ray beam
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what is density
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the overall blackness or darkness of an image
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which of the following exposure factors is used to modify contrast in dental radiography
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kilovoltage
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identify the unit of time used to measure x ray exposure
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impulse
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identify the function of the miliamperagre setting on the x ray machine
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controls the quantity of x rays produced
controls the temperature of the tungsten filament |
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which of the following statements is true regarding the types of filtration used in the dental x ray tube head?
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state and federal laws regulate that dental x ray machines operating at or below 70 kvp require a minimum total of 1.5 mm aluminium filtration and machines operating above 70 kvp require a minimum total of 2.5.
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identify which of the following is used to make a collimator
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lead
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identify the function of the collimator
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to restrict the size and shape of the x ray beam
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identify the recommended distance from the radiographer to the tubehead during x ray exposure
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at least 6 feet
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