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RADIATION THERAPY REGISTRY REVIEW QUESTIONS WITH 100% CORRECT ANSWERS

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RADIATION THERAPY REGISTRY REVIEW QUESTIONS WITH 100% CORRECT ANSWERS

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relationship between PDD and field size


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direct (PDD increases as field size increases)




TAR is affected by


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field size and energy




tolerance for beam output

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+/- 3% monthly, or 2% daily




TD 5/5 parotid


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32




difference between magnetron and klystron


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magnetron: microwave GENERATOR
klystron: microwave AMPLIFIER




Dmax for 6 MV


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1.5 cm




the term "en face" is used to describe


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, when the gantry is positioned parallel to the patient's skin/contour; used in
electron therapy




lateral images verify the patient's position in the ______ direction


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anterior/posterior




G3 also known as


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poorly differentiated




definition of image registration


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comparing daily CBCT images with images from the original CT at the time
of simulation




half life of Ra226


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, 1600 years




MV images are less clear than KV images due to


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compton scatter




two types of treatment that are charged as IMRT simple


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breast and prostate
everything else is charged as IMRT complex




purpose of reverse isolation


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protect the patient from infectious microorganisms that the staff and other
medical workers may have




roll is associated with the patient's ___ plane


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