Equipment and QC
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| What two parts can the electromagnetic spectrum be divided into? | It can be divided into ionizing and nonionizing (Pg. 8).
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| What is another name for Beta particles? | Beta rays (pg.12)
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| What kind of radiation damage causes a molecular change which leads to abnormal cell function? | Cellular damage (pg.13)
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| What is the anode made of? | Tungsten or metal alloy (pg. 31)
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| What creates the permanent inherent filtration of an xray unit? | Glass envelope and aluminum in collimator (pg. 32)
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| What is it called when the primary beam pass through the patient? | Beam attenuation (pg.33)
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| What is it called when xray protons pass through the patient without interaction? | Direct transmission (pg. 33)
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| What is it called when compton/coherent scatter hits the IR? | Indirect transmission (pg. 33)
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| How can radiographers decrease the amount of scatter that hits the IR? | Use air gaps or grids (pg.33)
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| What happens to the image when scatter hits the IR? | It decreases the quality (pg. 33)
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| What are imaging formation photons? | Photons that pass through the patient and hit the IR (pg.33)
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| Which interaction causes an atom to vibrate? | Coherent (pg. 37)
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| What are other names for Coherent scatter? | Classic, elastic, and unmodified (pg. 37)
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| Energy is absorbed by atom during coherent scatter. T/F? | False. Energy is not absorbed, but it is redirected (pg.36)
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| What interaction includes an xray photon ejecting an outer shell electron of an atom? | Compton (pg. 38)
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| The ejected electron from Compton scatter is capable of ionizing other atoms. T/F? | True (pg. 39)
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| What interation takes place when an xray photon ejects an inner shell electron from an atom? | Photoelectric Absorption (pg 40)
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| How much energy is needed for a pair production interaction to occur? | 1.022 megaelectron volts (MeV) (pg.46)
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| Which interaction creates a negatron and a positron? | paired production (pg 47)
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| What interaction is used in positron emission tomography? | Annihilation radiation (pg. 47)
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| Sherer, M., Visconti, P. J., & Ritenour, E. R. (2011). Radiation Protection in Medical Radiography (6th ed.). Maryland Heights, MO: Mosby Elsevier. |
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