iSERIES Algorithm
When performing a GAIN calibration it is crucial that the active face of the standard is
exactly 4 mm from the front of the detector. Most “planchet” type standard sources
cannot be placed with the active area in the proper location. When using the SH-CAL
holder shown in Figure 9 (iSOLO) or the IS-CAL shown in Figure 10 (iMATIC) the
AM50MM standard will be placed exactly the correct distance from the detector.
Figure 9 SH-CAL Holder for iSOLO
Figure 10 IS-CAL Holder for the iMATIC
Analysis Calibrations
All iSERIES come from the factory calibrated with calibration #10 preconfigured as
the “Factory Calibration”. This is sometimes not obvious to the casual user since only
the first 9 calibrations are displayed on the first calibration setup screen of the LCD.
The factory calibration is performed using an Am-241 standard (as shown in Figure 7
and Sr-90 standard of the same configuration and active area (50 mm).
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