3.2.2. The Simplest Way To Do An Analysis. ORTEC A66-BW GammaVision

GammaVision

®

v7 (A66-BW) 783620H / 1013

Fig. 12. Calibrated Spectrum Recalled from Disk File.

Note the vertical marker line, which you can move by left-clicking the mouse on a different part of the spectrum. The marker information line at the bottom of the display reflects the channel contents at the marker’s location. You can tell that this spectrum is already calibrated because the information about the marker reads in units of energy, keV. (An uncalibrated spectrum would instead display the word uncal

.)

3.2.2. The Simplest Way To Do An Analysis

Select a portion of the

GVDEMO.SPC

spectrum for analysis by positioning the mouse on or near the 122 keV peak in the Full Spectrum View (Fig. 13), which will be located near the left edge of the window, and clicking the left mouse button. This will move the marker to the mouse pointer. The Expanded Spectrum View will now show this part of the spectrum.

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783620H / 1013 3. GETTING STARTED — A GAMMAVISION TUTORIAL

Now expand this part of the spectrum by clicking on the Zoom In button ( ) on the toolbar one or more times. As you zoom in, the Full Spectrum View will show which portion of the spectrum is expanded, and the Expanded Spectrum View will display this part of the spectrum

(see Fig. 12). If the 122 keV region is not on the screen, point the mouse in the Full Spectrum

View and try again.

On the menu bar, click Analyze, and select Interactive in viewed area... (see Fig. 14). Gamma-

Vision will automatically analyze the selected region and display the results. The Analysis Side-

bar will open, superimposed on the Status Sidebar, the peak fit(s) will be shown graphically, and the numerical results will be displayed in an Analysis Results Table window, as shown in

Fig. 15.

Fig. 13. Full Spectrum Window.

Fig. 14. Analyze/Interactive in

Viewed Area.

That’s all it takes to do an analysis!

There are several functions that you can access at this point, but first we will load a working

nuclide library and check some parameters. Exit this analysis session by clicking on the

Analysis Sidebar’s Close button ( ). This will close the Analysis Sidebar and the table window.

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