ADC 400F Manual descarregar pdf (Página 42)

Chapter 3. Testing and Running the Software.

Now let’s put all the pieces together and test the system end-to-end. We will:

• Start SpecTcl

• Reload our spectrum and window deﬁnition ﬁles into SpecTcl

• Connect SpecTcl to the online system so that it will analyze data taken from our Readout program.

• Start the Readout Program

• Start a run in Readout

• Check that we see counts in our spectra in SpecTcl

First lets start SpecTcl and recover the deﬁnitions we made earlier. With your working directory set

~/experiment/spectcl, start SpecTcl by typing: ./SpecTcl

Once all of the SpecTcl windows pop up, reload the spectrum conﬁguration using: File−→Restore... on

the GUI window. Next load the window deﬁnition ﬁle for Xamine by clicking: Window−→Read

Conﬁguration.... You should now have an array of spectra in the Xamine window, four rows, by eight

columns, as before.

Now lets hook SpecTcl to the online system. SpecTcl has a concept of data sources. A data source is a

source of event data that SpecTcl can histogram. The Data Source menu on the SpecTcl Gui provides a

selection of data source types. Click the Data Source−→Online (spectrodaq)... menu item on the Gui

window. This will bring up the dialog shown in the following ﬁgure.

Figure 3-1. Online source host selection dialog

The NSCL Data acquisition system is a distributed system. It is therefore possible to histogram data on a

system other than the one the Readout runs on. In most real experiments at the NSCL, we do exactly that.

In this case, we will run SpecTcl and the readout program on the same system. Therefore the default host

localhost is correct. Simply click the Ok button to connect to the online system.

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ADC 400F Manual Página 42