Panitkin Plots
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We have added a large number of EEMC quality control plots to the STAR online display known as Panitkin plots. These should be looked at periodically to make sure the detector is operating correctly. The plots we have are discussed in detail at

http://www.star.bnl.gov/STAR/eemc/software/panitkin2004

In the control room these can be viewed by going to the computer terminal next to the run control computer. There are three main categories for EEMC each with a number of pages of plots. Offline the easiest way to look at them is to look at the runlog browser. The Panitkin plots are supposed to be saved by the shift crew. This tends to not be done every run but often enough to look back and check the detector. Go to

http://online.star.bnl.gov/RunLog/index.html

and select a date and search for a run where there are QA plots stored. You can click on the pdf file and it will be displayed. Our pages currently start about pg. 45. You can also get the plots off the event pool. Log into evp.starp.bnsl.gov as user [ ] and pw [ ]. The files are in /b/histos.

There are many plots but a few can quickly tell you if the detector components are working normally. "ESMD daq" ->"crates" (pg 47 in runlog pdf's) displays the adc vs channel in each crate. These should be inspected at the beginning of fills as the crates sometimes lose configuration. This shows up as regions with only pedestals in these plots. The solution is to reconfigure the corresponding tower fee crate as described above.

Also look at Panitkin plots ESMD DAQ -> sector 12-1, 2-3 etc (6 in all, pg 52-57 in runlog pdf's). Again if there are blank regions the MAPMT boxes will need to be reconfigured as described above.

"EEMC trig" -> "Hank's" has 2 2d plots that show the inputs to the DSMs. These run from 0-90 on the x axis. These should look uniform across the channels. Values running high in the spectrum are likely to be bad connections and experts should be consulted.