Chapter 7 Retrieving Information
258
F4 – Calibration Data Printout
The Calibration Data Printout (Figure 123) complements the Calibration Printout
described above. It provides:
• High Voltage (HV)
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• Discriminator Voltage (DV)
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• Detector live time,
• Gross count rate,
• Background count rate and background averaging time,
• Calibration self shield factor,
• Net count rate,
• Source strength,
• Zone efficiency.
This data is obtained from the Z_CALIB.DF settings file (on page 297).
Figure 123 The Calibration Data Printout Preview Screen
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In addition to detector efficiencies being <1%, changing a zone’s HV, ULD or Decriminator Voltage without recalibrating
will cause a calibration fault (“Not Calibrated” in F4 – Out of Service Causes screen on page 141 and Failure to Return to
Service on page 236).
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