Transcription of Using Automatic Exposure Control in Digital Radiography
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1 Using Automatic Using Automatic Exposure Control in Exposure Control in Digital RadiographyDigital RadiographyA. Kyle Jones, Kyle Jones, M. D. Anderson Cancer M. D. Anderson Cancer CenterDepartment of Imaging PhysicsDepartment of Imaging Physics2008 AAPM Meeting, Houston, TX2008 AAPM Meeting, Houston, TXAutomatic Exposure ControlAutomatic Exposure Control The purpose of AEC is to deliver consistent, The purpose of AEC is to deliver consistent, reproducible exposures across a wide range of reproducible exposures across a wide range of anatomical thicknesses, tube potentials, and anatomical thicknesses, tube potentials, and usersusers Detectors used in AEC systems include Detectors used in AEC systems include fluorescent screens with fluorescent screens with PMTsPMTs/photodiodes, /photodiodes, ionization chambers, and possibly solid state ionization chambers, and possibly solid state detectorsdetectorsAEC System DiagramAEC System DiagramGeneratorAEC ControllerAmplifierReference Voltage-3 -2 -1 0 +1 +2 +3kVpComparatorBackupTerminate?
Using Automatic Exposure Control in Digital Radiography A. Kyle Jones, Ph.D. U.T. M. D. Anderson Cancer Center Department of Imaging Physics 2008 AAPM Meeting, Houston, TX Automatic Exposure Control The purpose of AEC is to deliver consistent, reproducible exposures across a wide range of anatomical thicknesses, tube potentials, and users
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