As shown in Figure 1 there is a set of tabs in the main window that show a number of quantities relevant to the acquisition.
Figure 13 shows the spectrum. However, do not expect to find here a landau when acquiring in Source mode, since we plot here the signals sampled all along the pulse shape. You can choose to see all the spectrum from all the chips or from individual chips by clicking in the appropriate radio button on top of the histogram. If you want to see the average value of the signal as a function of the TDC time registered, click on the Time profile button and you will see the average wave form of the signal pulse as shown in Figure 14.
If you are debugging the system and make changes you can click on Reset histogram and the histogram contents will be cleared so that you can see the effect of your tweaking.
Figure 15 shows the contents (in ADC units) of each channel for a given event. You can choose to see the raw data, without pedestal and common mode corrections or the digested data by clicking on the proper button on top of the histogram.
Figure 16 shows the average noise and the common mode (in ADC units) of both chips. Note that the noise here and in the pedestals tab are not computed in the same way and the value shown here is slightly higher than there. In the pedestal tab the noise value is show per channel and is the RMS of the pedestal distribution. Here we show the RMS of the ADC values of the channels without signal.
One can change the histogram attributes by clicking on top of it with the right mouse button. A pop-up menu will appear as shown in Figure 17 .
Clicking on the print item will let you save the histogram as a picture. You can also save it as text so that you can recover the curve with the program of your choice. Clicking on colors will allow you to change the background and foreground colors of the axis, the canvas and the histogram itself. You can also change the position of the axis, its range, change to log scale, draw filled histograms or show the histogram statistics by activating the corresponding radio buttons.
You can also change the range of the histogram axis to zoom a given region. This is done by selecting it with the left button of the mouse while pressing: