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LRA 211 final Questions and Correct Answers

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LRA 211 final Questions and Correct AnswersLRA 211 final Questions and Correct AnswersLRA 211 final Questions and Correct AnswersLRA 211 final Questions and Correct AnswersLRA 211 final Questions and Correct AnswersLRA 211 final Questions and Correct AnswersLRA 211 final Questions and Correct AnswersLRA 211 final Questions and Correct AnswersLRA 211 final Questions and Correct AnswersLRA 211 final Questions and Correct AnswersLRA 211 final Questions and Correct AnswersLRA 211 final Questions and Correct AnswersLRA 211 final Questions and Correct AnswersLRA 211 final Questions and Correct Answers

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LRA 211
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LRA 211

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LRA 211 final Questions and Correct
Answers
Concave focusing cup Ans: Part of the cathode that directs
electrons towards the anode

Tungsten filament Ans: Part of the cathode that emits electrons
when heated

Glass envelope Ans: Part of the x-ray tube that creates a vacuum
and prevents oxidation

Rotor, bearings, and stator Ans: Components that create a
magnetic field for induction motor

Milliseconds Ans: Unit of time used to measure exposure duration

Characteristic interaction Ans: Interaction inside the x-ray tube
where photons are produced

Coherent scatter Ans: Interaction where photons shake an
electron without changing energy level

Gamma rays Ans: High-energy electromagnetic radiation with no
mass




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Neutrons Ans: Particles that can cause more damage than x-ray
photons

Sievert (Sv) Ans: Unit of dose equivalent/exposure

Gray (GyT) Ans: Unit of absorbed dose

Gray (GyA) Ans: Unit of air kerma

Becquerel (Bg) Ans: Unit of natural radioactivity

80 kVp Ans: Required voltage to penetrate the skull

Millimeters Ans: Unit of measurement for thickness

9 photons Ans: Number of photons created in the anode through
electron deceleration

Compton or photoelectric Ans: Interactions that result in the
creation of imperatives

Primary photon Ans: First photon created in the x-ray tube

Remnant photon Ans: Photon that remains after attenuation and
leaves the body

Scatter Ans: Secondary interaction that creates radiographic fog

Radiolucent Ans: Material through which radiation can pass


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