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If 5% of an incident beam is transmitted through a body part,then 95% of that beam was _____.


A) scattered
B) attenuated
C) absorbed
D) back-scattered

E) A) and B)
F) A) and C)

Correct Answer

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Which has the greatest mass density?


A) fat
B) soft tissue
C) bone
D) air

E) C) and D)
F) All of the above

Correct Answer

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An incident x-ray interacts with an atom without ionization during _____.


A) photoelectric absorption
B) Compton scattering
C) coherent scattering
D) pair production

E) A) and D)
F) All of the above

Correct Answer

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The scattered x-ray from a Compton interaction usually retains _____ of the energy of the incident photon.


A) none
B) little
C) most
D) all

E) A) and C)
F) A) and D)

Correct Answer

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X-rays transmitted without interaction contribute to _____.


A) photoelectric absorption
B) the radiographic image
C) the image fog
D) beam attenuation

E) All of the above
F) B) and C)

Correct Answer

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