CODA

Start CODA

Open a terminal and type startcoda.

The runcontrol window will appear: File:Startcoda.png

Hit the "Connect" button, then "Configure" (choose a configuration e.g. LeftHrs), and "Start Run", or, to troubleshoot, "Download", "Prestart", and "Go".

Setting prescale factor for the HRS only (updated 11/03)

   For Left HRS:
 *   log in as adaq on adaq1 machine
 *   type "prescaleL &" to open the GUI
 *   set the desired prescale factors and click "Save" and Exit 

   For Right HRS:
 *   log in as "adaq" on "adaq2" machine
 *   type "prescaleR &" to open the GUI
 *   set the desired prescale factors and click "Save" and Exit 

   Definition of triggers:(Proposed for Argon- 02/07/17)
       T1 = L-arm s0 && s2 && Shower
       T2 = L-arm (s0 || s2) && (Cherenov||Shower)
       T3 = R-arm s0 && s2 
       T4 = R-arm (s0 || s2) && !(Cherenov||Shower)
       T5 = T1 && T3
       T6 = T2 && T4
       T7 = L-arm EDTM trigger
       T8 = 103.7 kHz pulser (for LHRS), 1.024 kHz (for RHRS)
       T9 = 

Starting xscaler (HRS) and checking raw trigger rates (updated nov 5, 2014)

Raw rates of trigger and detector channels can be accessed using a GUI. Below are the instructions for opening "xscaler" GUI

• These screens are generally already open on the agen5 machine (above the DAQ machine)

• If it is xscaler is not open then follow these instructions:
  • login as a-onl on adaq1 or adaq2 machines (eg: "ssh a-onl@adaq1" )
  • passwords are written on the white board
  • type "goxscaler" and follow the instructions printed on the screen
  • type "./xscaler Left" or "./xscaler Right" to access xscaler display

How to download and check the LHRS MLU trigger (updated 11/05)

  Consult the MLU information of the main Hall A wiki page.

How to check the dead time

last update 12/2/14
"Needs to be updated" There are two ways to check for deadtime:

• online using the XScaler tool.
  
  • See above for instructions on how-to open the Xscaler.
  • Select the "misc" tab.
  • the ratio (DVCS_stop/DVCS_masterOR) is a measurement of the live time for our main trigger.

• offline. This solution allows to check deadtime for individual triggers (say DIS or DVCS, ...)
  

After you replay the run, ssh to aonl1, aonl2, aonl3 or aonl4 machine and:

> godvcs
> cd marco/deadtime/
> analyzer
> .L deadtime.C
> deadtime(NNNNN)