EMMA

Information on EMMA DAQ

To start the DAQ:

To start the analyzer:

login emma@midemma01
cd online/ana
run ./emmana.exe -g -R8081
if a run is active, watch the histograms update every 15 seconds on the canvases
open web page: https://midemma01.triumf.ca/rootana/ (tailing slash is important!), watch the histograms on the web, click "monitoring" to enable periodic update.
to rebuild the analyzer, edit emma_module.cxx, then run "make". Use "make clean" to remove old object files, etc. Commit changes using "git commit ."

If the DAQ crashes here are some suggested diagnostics checks:

Check connection to feemma (VME crate): Type "ping lxemma01". If it does not respond then power cycle the VME crate at the focal plane.
Check the status of the mlogger program: Sometimes an interrupted connection can cause problems with the mlogger program, which will result in being unable to restart a new run. Type "ps aux | grep mlogger". If multiple mlogger programs are running then midemma01 will need to be restarted. You must perform a hard restart by holding down the power button.
Once both midemma01 and the VME crate are back up and running, follow the DAQ restart instructions listed above or type "start_daq.sh" in terminal.

online analyzer can be invoked from any directory using emmana.exe .