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Question
Answer
show Potter-Bucky diaphragm  
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a fixed kVp technique is fixed for a specific   show
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show scatter radiation  
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a grid is used to improve   show
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a Potter-Bucky diaphragm must move the grid___to the direction of the grid lines   show
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a Thoreaus filter combines all of the following except; silver, copper, tin, aluminum   show
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show greater  
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show Al/Eq  
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angulation across the long axis of a linear grid causes   show
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show 10  
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show 60  
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show scatter increases  
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show the ability of the grid to remove scatter increases  
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show electrons  
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show exposure  
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show 4 to 5  
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show removing low-energy photons  
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show it decreases patient dose  
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show low-energy incident electrons  
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show narrow  
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show decrease patient dose, reduce x-ray tube wear, decrease time settings  
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show increase the consistency of image density, increase the consistency of image contrast, lengthen exposure latitude  
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show produce more scatter radiation than other systems  
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for a grid to be properly focused, the x-ray tube must be located along the___line   show
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for a variable kVp exposure technique system, the kVp is primarily varied according to   show
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show 3  
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show kVp  
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show for a given range of subject densities, contrasts, while the mAs is varied to achieve appropriate image density  
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in general, low-energy x-ray photons   show
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in the early days of radiography, it was common practice to use a change of___kVp for every one cm of tissue thickness plus a constant   show
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most of the inherent filtration of a typical x-ray equipment comes from the   show
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show diagnosing radiologists and image quality control radiographers  
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show photoelectric interaction  
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show radiographic contrast  
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steps formed for a variable kVp exposure system should be in groups of___cm increments   show
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technique systems function best when a   show
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show decreased contrast  
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the amount of material that will reduce the intensity of the primary beam to one-half its original value is the   show
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show increase in patient thickness, larger field size, decrease in atomic number of the tissue  
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the collimator device is considered part of the___filtration   show
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show subject contrast  
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show caliper  
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the effective use of a variable kVp technique chart requires   show
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show patient  
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the half-value layer is typically expressed in   show
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the higher the kVp, the   show
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show compton  
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show contrast, type of interaction, average photon energy  
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show 30  
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the most common filter material used is   show
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the number of grid lines per inch is the grid   show
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the objective of optimal kVp is to determine the   show
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the optimal kVp must ensure   show
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show mAs  
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show Thoreaus filter  
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show radiopaque strips  
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show absorb scatter, are made of dense material, have a high atomic number  
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show ratio  
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the use of the max kVp as optimal causes a corresponding decrease in   show
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show thicker, greater  
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show PEP  
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show inherent and added  
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variable kVp systems   show
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show inherent  
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when AEC systems are used, the selection of___ factors is eliminated   show
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show it will pass throught the body unaffected, be absorbed by the body, interact with the body and change direction  
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show producing phantom images  
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when the lead strips run in a single direction in a grid, the grid pattern is described as   show
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when viewing phantom images, professionals are not asked to select the   show
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which grid would have the greates distance between lead strips   show
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show 15:1  
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which of the following elements would attenuate a greater percentage of the x-ray beam; hydrogen, barium, oxygen, carbon   show
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show hydrogen  
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which of the following materials are used as a filter; glass, oil, aluminum   show
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show wedge  
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the thickest portion of the wedge filter is placed over the less dense part of the patient   show
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a grid is a series of radiopaque strips that alternate with radiolucent interspace strips   show
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show inherent  
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