View source for RICH pedestal run

Follows the procedures described here to take a RICH pedestal run, generate the pedestal files and make them visible to the DAQ.

== Take the RICH pedestal run ==

a1. Ask MCC for '''beam OFF'''

a2. login as a-onl@adaql4 (l5, l6 or l7) 

a3. go to the directory: '''/adaqfs/home/a-onl/rich/pedestal'''

a4. do the command: '''[[l_rich_preped|./preped.sh]]'''

a5. prescale all trigger except T3 and T5

a6. run a standard calibration run in ''TwoArmRICH'' (comment as ''RICH pedestal''), deadtime should be araound 15% at 25 Hz

a7. take 2000 events at least, then stop the run

== Generate the pedestal files ==

b1. login as adaq@adaql6 (or l7)

b2. go to the directory: '''/adaqfs/home/adaq/e06010/rich/leftreplay'''

b3. run analyzer

b4. within analyzer do: '''[[l_rich_newdecodeRICH|.L newdecodeRICH.C+]]'''   (note: to speed up the processing, do not forget the '''+''' at the end)

b5. then run: '''newdecodeRICH(####)'''     where '''####''' = number of the pedestal run

b7. check the message about pedestal and noise means at the end of the processing

b6. quit analyzer: '''.q'''

== Make them visible to the DAQ ==

c1. go back to a-onl@adaql4 (or higher) in the directory '''/adaqfs/home/a-onl/rich/pedestal'''

c2. run the script: '''[[l_rich_copyped|./copyped.sh]]'''  (check the messages about file length)

c3. you can now start the production; do not forget to set the prescalers correctly

== Additional Information ==

The file ''[[l rich log|save/log.txt]]'' keeps track of the operations of the above scripts '''[[l_rich_preped|preped.sh]]''' and '''[[l_rich_copyped|copyped.sh]]''' and therefore of the pedestals used in the data acquisition in each run.
 
Moreover '''[[l rich copyped|copyped.sh]]''' backups a copy of the latest pedestal files in a subdirectory in ''save/''; the subdirectory is written in ''[[l_rich_log|save/log.txt]]''.

The final pedestal files acquired and used during the experiments are aavailable here:
[https://hallaweb.jlab.org/dvcslog//ARICH/249 elog/arich/249]

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