SRS DAQ

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GEM-SRS-CODA Some tidbits

Computer info: hostname is hallavme9 and user-name is coda (For password, contact Dipangkar, Krishna or Alex)

CODA output and how to look at it

The output from the single ROC (# 10) mode of CODA run is saved in /home/coda/SRScoda/data

The output from the multi-ROC (GEM ROC # is 7) is in another computer (ask Alex about it).

To look at the single ROC GEM data:

  • Go to /home/coda/KrishnaStuff/AdaqBackUp/Krishna/SRS/RdSRSonlyOp
  • Run codadump4Hist to make a plot of each event (compile the program as make codadum4Hist' if you need to). This program will make plots SRS data from each event (one plot from each APV data). If there is GEM signal in the event, the plots will look somewhat like these ones. Otherwise, you will see NO-GEM-signal plots like these. The output is saved in the Output directory (both in .gif, txt and ROOT format). The program also displays the .gif file at the end of it.
    • Run it as follows: ./codadump4Hist 1 ~/SRScoda/data/test_98.dat 24, where the arguments are as follows:
      • First parameter takes value of 1 if the GEM is ON, otherwise, it's 0
      • Second parameter is the name of the CODA output file (with full path) that we are looking at
      • Third input argument is the event # that we want to look at. This number should be equal to 3 or more in case of the Single-ROC coda output, because there is no SRS data in the first 2 events. For the multi-ROC coda output, this number should be 53 or more, if I remember correctly. But, for that you'll have to go to a different directory /home/coda/KrishnaStuff/AdaqBackUp/Krishna/SRS/RdMultiRocOp and run it's corresponding program codadump4Hist just as I described above. Things are different here because, the GEM ROC has been given a different number/ID (of 7) instead of 10 and also due to other differences such as the fact that the actual detector data are stored only after the 52nd event.

General Resources and Setup Instructions

User Notes

Other related materials

Some DAQ related generic materials

Contacts

Kondo Gnanvo, Research Scientist (UVa). Ph.D., 2001, ENST de Bretagne & Universite de Bretagne, Occidentale, France

kg6cq@Virginia.EDU or kgnanvo At virginia.edu 924-6796 151 JBL Office

Martin Purschke: Data Acquisition Coordinator of PHOENIX experiment @ BNL

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