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HF Series X-ray Generators - Service Manual
Revision W
Quantum Medical Imaging, LLC
A-9
Appendix A AEC Calibration with DR or CR Film Plate
8. Set the ion chamber detector selection to middle detector and ensure
x-ray tube is at correct SID. Ensure the ion chamber has been bal-
anced.
9. Place 5 cm of acrylic in the X-ray beam.
10. Verify the Optical Density field is set to the desired optical density
(e.g., "1.30"). If not, press the up or down key located next to the
Optical Density field until the "base" optical density setting is equal
to the desired optical density (1.30 in this example).
Do not change
the optical density setting at any time during this procedure.
11. Take an exposure at the setting indicated in the center display box
(i.e., 50 kVp, 200L mA).
12. Process the CR film plate (if CR system) to determine sensitivity value
(sometimes referred to as the "REX" or "S" value, depending on CR
or DR system manufacturer).
a. If the sensitivity value is within acceptable range as defined by
the digital receptor or CR film plate manufacturer, press the Next
Calibrate key to save the setting and proceed to Reciprocity Cali-
bration.
b. If not within range, adjust ion chamber MASTER GAIN as
described in the "AEC Optical Density Calibration" procedure in
Chapter 3, CALIBRATION. Note that the MASTER GAIN adjust-
ment procedure is different depending on the generator AEC con-
figuration (standard AEC or universal AEC).
IMPORTANT! Following a calibration procedure,
unless the "Save Calibrate" or "Measure, Cali-
brate" key is pressed, no change is made to the
currently saved calibration value(s).
13. Press the key next to the Next Calibrate field to advance to Reci-
procity Calibration.
14. The Reciprocity Calibration Screen is displayed; however, this calibra-
tion procedure is not necessary with systems equipped with digital
receptor or CR film plate.
15. Press the key next to the Next Calibrate field.
Содержание ODYSSEY HF Series
Страница 1: ...Service Manual ODYSSEY Q VISION HF Series X ray Generators Manual Part No DC30 011 Revision W...
Страница 15: ...Chapter 1 1 SPECIFICATIONS 1...
Страница 16: ...1 2...
Страница 37: ...Chapter 2 1 ASSEMBLY INSTALLATION 2...
Страница 38: ...2 2...
Страница 93: ...Chapter 3 1 CALIBRATION 3...
Страница 94: ...3 2...
Страница 165: ...Chapter 4 1 THEORY OF OPERATION 4...
Страница 166: ...4 2...
Страница 185: ...Chapter 5 1 SERVICE INSTRUCTIONS 5...
Страница 186: ...5 2...
Страница 281: ...Chapter 6 1 DIAGRAMS 6...
Страница 282: ...6 2...
Страница 349: ...A 2...
Страница 364: ...B 1 CALIBRATION Agfa DiRex B Appendix...
Страница 365: ...B 2...
Страница 420: ...C 1 Log4View Error Logger C Appendix...
Страница 421: ...C 2...
Страница 428: ...D 1 CALIBRATION Using Generator Service Tools D Appendix...
Страница 429: ...D 2...