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Is a process whereby some of the x-
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ray beam is absorbed in the tissue and some passesFthrough (transmits) the anatomic part -
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hCORRECT ANSWER -differential absorption h h h
The term differential is used because varying anatomic parts do not absorb the primary beam to the sam e degr
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ee
Ex. Bone absorbs more x-ray than air
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T or f - CORRECT ANSWERF-True
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Creating a radiographic image by differentialabsorption requires several processes to occur (3) -
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hCORRECT ANSWER -• BEAM ATTENUATION h h h h
• ABSORPTION
• TRANSMISSION
• Primary x-ray loses some of its energy (intensity) beam as it passes through anatomic tissue
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• Fewer x-ray photons remain in the beam after itFinteracts with anatomicFtissue.
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• result of the photon interactions with the atomic structuresFthat comprise the tissues. -
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hCORRECT ANSWER -Beam attenuation h h h
The reduction in the intensity or number of photons in the primary x-ray beam is known as
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hCORRECT ANSWER -Attenuation h h
Two distinct processes occurduring beam attenuation: - CORRECT ANSWER -• ABSORPTION
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• SCATTERING
As the primary x-
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ray beam interacts with an anatomic part, photons are absorbed, scattered, and transmitted.
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, T or f - CORRECT ANSWERF-True
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The differences in the absorption characteristics of the anatomic part create an image that structurally re prese
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nts the parth h
T or f - CORRECT ANSWER -True
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X-ray photons are completely absorbed when the energy of the primary x-
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ray beam is deposited within the atoms comprising the tissue
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T or f - CORRECT ANSWERF-True
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Complete of the incoming x- h h h h
ray photonoccurs when it has enough energy to remove (eject) an inner shell electron. -
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CORRECT ANSWER -absorption
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The ejected electron is called a
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CORRECT ANSWER -photoelectron h h
responsible for total absorption of the incoming x-ray photon - CORRECT ANSWER -photoelectric effect
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The probability of total photon absorption by the photoelectric effect depends on the energy of the inco ming x
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-ray photon and the atomic number of the anatomicFtissue - CORRECT ANSWER -True
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Happens incomingFphotons are not absorbed but instead lose energy during interactions with the atoms comp
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rising the tissue - CORRECT ANSWER -Scattering
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When a is used, the overall number of x-
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ray interactions with matter decrease because of increased photon transmission - CORRECT ANSWER -
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higher kVp (kilovoltage peak)
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