HF Series Generators
Calibration
CA-1036R2
i
TABLE OF CONTENTS
Section Page
1 INTRODUCTION 1.........................................................
1.1 Generator Specifications 2.............................................
1.1.1 Minimum Current Time Product (mAs) 2..........................
1.1.2 Accuracy of Radiographic and Fluoroscopic Parameters 2..........
1.1.3 Duty Cycle 2..................................................
2 CALIBRATION PROCEDURES 3............................................
2.1 Filament Stand-by Current 4...........................................
2.2 Exposure Time Adjustment 5...........................................
2.3 kV Loop 6...........................................................
2.4 Digital mA Loop Closed 11..............................................
2.5 Digital mA Loop Open (X-Ray Tube Calibration) 16........................
2.5.1 Autocalibration of Digital mA Loop Open 16........................
2.5.2 Manual Calibration of Digital mA Loop Open 21.....................
2.6 AEC Calibration 27....................................................
2.6.1 Previous Checks 28.............................................
2.6.2 Balance Adjustment for Three Field Detectors 29...................
2.6.3 Optical Density Adjustment 32....................................
2.6.4 kV Compensation 39............................................
2.6.5 Photomultiplier RAD-AEC (Digital RAD) Adjustment (Optional) 42.....
2.6.6 AEC Optical Density Scale 44....................................
2.7 Fluoro Calibration 45...................................................
2.8 ABC Calibration 49....................................................
2.8.1 ABC System with PhotoMultiplier Tube 49..........................
2.8.2 ABC System with TV Camera 54..................................
2.8.2.1 ABC System Adjustment with ABC Signal from TV Camera
Compatible with the Generator 56.........................
2.8.2.2 ABC System Adjustment with ABC Signal from TV Camera
not Compatible with the Generator 58......................
2.8.2.3 ABC System Adjustment with no ABC Signal from TV Camera 60
2.9 Final Checks 63.......................................................
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