783620H / 1013 7. ANALYSIS REPORT
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+ The abundance for this peak was higher than the running average of those included at this point. For more information on the Weighted Average Nuclide Activity, see
Section 6.7.1.
The abundance for this peak was lower than the running average of those included at this point. For more information on the Weighted Average Nuclide Activity, see
Section 6.7.1.
= This peak was outside the user-specified limits for the analysis.
& When the library-directed centroid was recalculated after background subtraction, the centroid value was outside the energy limits such that the peak could not be attributed to this nuclide. This may occur with very small peaks where the peak shape is not well defined, when the energy calibration needs adjustment, or if the library peak energies need to be corrected.
} The peak area for this peak was derived using other peaks for this nuclide. This is enabled by the library-based peak stripping option.
P Peak Background Subtraction was applied to this peak. (See Section 6.10.4 for details on peak background subtraction.)
7.7.8. Discarded Isotope Peaks
This table (Fig. 272) displays peaks associated with a nuclide that was rejected during the analysis due to a failed Key Line or Fraction limit test, with the clarifications below.
! Isotopes may be discarded when using WAN32, ROI32, and NPP32 analysis engines because the rejection criteria are evaluated after the Library Directed Peak Search has associated peaks with a nuclide. For GAM32 and ENV32 analysis engines, this table should be empty because the Key Line and Fraction Limit tests are implemented during the Library Reduction step at the beginning of the analysis process before the Library
Directed Peak search, which assigns nuclide peaks.
! If the b30winds.ini
parameter “Print Discarded Peak Table flag” is set to “T” (true), this table is displayed for all analysis engines except for GAM32. If this parameter is set to
“F” (false), this table is suppressed.
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