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| CT scanner automatic exposure control systems. Report 05016, Feb-05 | |
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Automatic exposure control (AEC) systems for CT scanners are now available from all the major scanner manufacturers. These systems have aim to adjust the x-ray tube current to compensate for different levels of patient attenuation of the scanner's x-ray beam. This report discusses the CT AEC systems in current use, covering the technology and methods of operation. It lists the capabilities of present systems and includes the results of testing on current 16 slice scanners.
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