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The FRS acquisition: multi-event mode

Click here to see the new trigger scheme.

Click here to see the spill-on-off scheme.

An example of comparison between the single- and multi-event mode is here summarised and plotted in Fig. 1 and Fig. 2, respectively. The DAQ rate has been tested in both cases with one VME crate setup with two Caen TDCs V775. The multi-event DAQ was able to run up to 40 kHz without any relevant increasing of the dead time. It means a factor 2.6 more in the rate, compared to the single-event mode.

In August 2009 the FRS crate was running in multi-daq mode at beam time.The results of the complite test can be found here.

 
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Script file last updated on April 5, 2011.