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RADT 100 Exam 3 Radiologic Physics Updated 2024 with 100% Correct Answers

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RADT 100 Exam 3 Radiologic Physics Updated 2024 with 100% Correct Answers The larger the x-ray beam field size, the ____ amount of scatter radiation produced - ANS: greater positive beam limitation - ANS: automatic collimation to field size increasing collimation results in - ANS: a decreased field size and decreased scatter radiation, increase contrast as beam restriction decreases, field size and patient dose - ANS: increase as beam restriction increases, the quantity of scatter radiation ____ and radiographic contrast _____ - ANS: decreases, increases digital flat-panel detector - ANS: located where the Bucky is, requires manual collimation types of beam restrictors - ANS: grid, cones, cylinder, aperture diaphragm what beam restrictor does not get rid of scatter production - ANS: grid cones and cylinders - ANS: an aperture diaphragm that has an extended flange attached that varies in length and shape aperture diaphragm - ANS: a flat piece of lead (diaphragm) that has a hole (aperture) in it placed directly below the x-ray tube window things that influence the amount of scatter radiation striking the image receptor but not the production of scatter radiation - ANS: grid increased grid ratio - ANS: decreases amount of scatter grid ratio - ANS: height/distance grid ratio - ANS: the height of the lead lines to the distance between them types of grids - ANS: wafer, grid cassette, grid cap wafer grid - ANS: used by placing directly on top of the IR


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