ADC 400F Manual descarregar pdf (Página 43)

Chapter 3. Testing and Running the Software.

Now we must start Readout and begin a run so there is data for SpecTcl to analyze. With our current

working directory set to cd ~/experiment/readout, start the readout program: ./Readout. When

you get the prompt, type: begin.

The status line at the bottom of the SpecTcl GUI should reﬂect the number of buffers SpecTcl has

analyzed and the analysis efﬁciency. SpecTcl is not allowed to dictate the data rate. Therefore it only

analyzes the fraction of the data it is able to keep up with. The efﬁciency reﬂects that percentage. When

analyzing data from ofﬂine sources (e.g. event ﬁles), all data are analyzed, so the efﬁciency is 100%.

In the Xamine window, click the Update All button in the second box of buttons. The histogram for the

channel into which you have put the pulser should show a sharp peak. If you double click this spectrum

to zoom in, you should see something like this:

Figure 3-2. Sample Pulser Peak

By adjusting the pulse height you should be able to move this peak across the spectrum. By switching

input channels you should be able to produce this peak in any of the histograms.

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ADC 400F Manual Página 43