783620H / 1013 7. ANALYSIS REPORT
Fig. 258.
7.4. Library Parameters
This section (Fig. 259) displays the libraries used for analysis and the Library Match Width setting.
If Manual Based Peak Stripping is enabled on the Analysis tab, the Second Library specified on the Analysis tab is identified on the report as the “Stripping library,” and the Third Library specified on the Analysis tab is identified as the “Second analysis library.” The primary purpose of the stripping library is to define the interference while the second analysis library defines which nuclides are assigned the remaining peak area after peak stripping is applied. The stripping and second analysis libraries are omitted from the report if Manual Based Peak Stripping is not enabled. Refer to Section 6.5.5.2 for more information on peak stripping.
Fig. 259.
7.5. Analysis Parameters
This section (Fig. 260) displays various analysis parameters used for the analysis, with the clarifications below.
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Fig. 260.
! “Peak rejection level” is the same value as the Peak Cutoff on the Analysis tab. Peaks with 1-sigma counting uncertainty greater than this value are not used in the analysis except in the special case when Directed Fit is enabled, which will generate an activity result for every nuclide in the library even if no peaks for that nuclide pass the Peak
Cutoff criteria.
! The “Activity scaling factor” is the multiplier applied to the total sample activity to calculate the specific activity. This parameter includes the Multiplier, Divisor, and sample Size from the System tab.
! The additional uncertainty parameters, “Uncertainty 1" through “Uncertainty 9" in
Fig. 260, reflect the respective entries on the Uncertainties tab. These fields are reported only if a non-zero uncertainty is entered. If no label or non-zero uncertainty value is specified, the respective field is omitted from the report.
! The “Background width” is a description of the Background Type specified on the
Sample tab. (In this example, “best method [based on spectrum]” refers to the Auto background type.)
