Difference between revisions of "Taking LED Data"

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*follow the daq instructions here:https://hallcweb.jlab.org/wiki/index.php/Hall_C_DAQ#If_the_CODA_vnc_session_disappeared_and_.27go_coin_daq.27_doesn.27t_work
 
*follow the daq instructions here:https://hallcweb.jlab.org/wiki/index.php/Hall_C_DAQ#If_the_CODA_vnc_session_disappeared_and_.27go_coin_daq.27_doesn.27t_work
 
* Start the daq in Coin mode following the instructions above
 
* Start the daq in Coin mode following the instructions above
* In the Run Control GUI select the coda configuration "NPS-VLD"
+
* In the Run Control GUI select the coda configuration "coin_vld"
 
* Start a run
 
* Start a run
 
  
 
=Running LED scripts=
 
=Running LED scripts=

Revision as of 19:57, 24 September 2023

Run Coin Daq VLD Configuration

Running LED scripts

  • ssh to cdaq machine as hccoda user. Navigate to cd /home/hccoda/scripts/VLD
  • Make sure to start the run BEFORE starting the LED scripts, and verify the event rate=0
  • Execute the script ./test.sh
  • FAQ: if something crashes or an LED gets stuck on, then run ./vld_allOff.sh to cycle through and disable all channels.

Editing LED Parameters

  • By default the DAC=45 , the pulse width=20ns , the pulse rate = 14.kHz
  • To change the DAC open "test.sh" and change the 45 to the new desired DAC in line 23 "bash vld_square_pulse_sr.sh 10 45 $j"
  • To change the rate open "vld_calibration_test_args.sh" and line 41 "PULSER SETTING=" to the desired pulse rate