GammaVision
®
v7 (A66-BW) 783620H / 1013
The ROI, Peak, and Library buttons on the Status
Sidebar are also active.
Marking the Show Residuals check box adds a line beneath the spectrum that displays the difference between the actual spectrum and the calculated spectrum based on the analysis and the calibration peak shape. An example is shown in Fig. 185.
5.5.6.2. Analysis Results Spectrum Window
This release of GammaVision features an improved
Analysis Results Spectrum Window that gives you more flexibility in displaying and printing your analysis results. Right-clicking in the spectrum window opens the right-mouse-button menu shown in Fig. 186.
Plot Absolute Residuals/Plot Relative Residuals
These commands are active if the Show Residuals check box is marked on the analysis sidebar. The residuals are a comparison of the counts in each channel (Actual) to the calculated counts for that channel as determined by the peak-fitting algorithm (Fitted). Plot Absolute Residuals displays the difference in each channel, in counts, between
Actual and Fitted counts. Plot Relative Residuals displays the difference in each channel, in standard deviations
(abbreviated STD on the screen), between Actual and Fitted counts divided by the square root of the Actual counts; that is, .
Fig. 185. Spectrum Residuals
Display (arrow).
The Properties command allows you to modify the screen colors and y-axis scaling for the residuals histogram.
Zoom In
Zoom In adjusts the horizontal and vertical scales in the
Expanded Spectrum Window to view a smaller portion of the spectrum. This command is duplicated by the Zoom In button on the toolbar.
Fig. 186. Analysis
Results Spectrum
Window Menu (rightclick to open).
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