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25 Cards in this Set
- Front
- Back
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This is the abbreviation for absorbed dose
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What is rad?
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This type of personnel monitoring system provides an immediate reading.
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What is a pocket dosimeter?
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This unit of dose equivalent is used to express radiation exposure in living tissue.
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What is rem?
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Lithium fluoride crystals are found in this type of monitoring system.
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What is a TLD?
thermoluminescent dosimeter |
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A reading of “M” represents this meaning
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What is a minimum reading?
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When a photon reacts with an electron & the resulting photon has the same energy but moves in a different direction, it is called this.
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What is unmodified scattering?
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After the primary beam emerges from the patient, it is called this.
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What is exit radiation?
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This type of interaction delivers the highest exposure to the radiographer
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What is Compton
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This type of interaction occurs above 1.02 MeV
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What is pair production
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This type of interaction is the only photon-tissue interaction that does not result in ionization
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What is Coherent scattering
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Positive beam limitation is referred to as this
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What is automatic collimation
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GSD represents this
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What is genetically significant dose
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Annihilation reaction is
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What is the conversion of mass into energy
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This is the time it takes for a radioactive material to ½ its atom disintegrate
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What is half-life
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A decrease in exposure rate caused by the passage of material is referred to as this.
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What is attenuation
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5 rem = this amount of mSv
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What is 50 mSv
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1 rad is = this this amount of grays
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What is 0.01 grays
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This type of radiation is the least penetrating
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What is alpha?
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This setting controls the difference in tissue absorption
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What is the kVp setting
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Atomic number is also referred to as this
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What is the Z number
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This type of radiation is monoenergetic
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What is gamma radiation
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This describes the rate at which energy is deposited in the form of a charged particle as it travels through matter
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What is LET
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This is a term used to describe loss of hair
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What is epilation
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Photon-tissue interaction that involves K-Shell electrons is represented by this type of interaction with matter
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What is photoelectric interaction
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This is the only photon-tissue interaction that involves an incident photon & atomic nucleus.
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What is pair production
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