GammaVision
®
v7 (A66-BW) 783620H / 1013
When you activate an ROI by clicking on it, the low (start) and high (end) positions marked by the ROI bars are displayed on the Marker Information Line.
You can shift the start and end channels of an ROI by clicking and dragging the ROI bars (allow a moment for the display to update).
The ROI bar color is controlled by the Markers droplist in the Graph Properties dialog.
Peak Info
This command opens a Peak Info box
(Fig. 188) for the selected peak and leaves the box open until you click inside it. This command works for peaks loaded from a
.UFO
file, and ROIs created within GVPlot or loaded from an
.ROI
file. The contents of the Peak Info box are described in Section 5.4.3. You can simultaneously display multiple Peak Info boxes as long as they do not overlap. A new Peak Info box will close any existing boxes that it overlaps.
For very narrow peaks, you might find it useful to position the marker with the left/right arrow keys before calling the Peak Info command.
When the marker is on a peak, the right side of the Marker Information Line will display a
Peak Area readout.
Fig. 188. The Peak Info Window for an
ROI.
Show Hover Window
When you select this command, a checkmark is displayed by this menu item to indicate that it is in hover-window mode. In this mode, the Peak Info window opens when the mouse pointer is paused over a peak for approximately 1 second, and closes when the pointer is moved away from the peak. To turn off hover mode, select Show Hover Window again to remove the checkmark.
This mode can be used together with Peak Info.
Sum Spectrum
This sums the gross counts in the area selected with the rubber rectangle or, if you have not selected an area, the gross counts in the entire spectrum. The results are displayed on the status line, and indicate the span of channels summed.
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