Ar(ee'p)

How to taking Data

Start Coda

• How to run DAQ
  • From a terminal login as "adaq2" machine (do "ssh adaq@adaq2" without the quotes)
  • Password is available on the white board
  • After login to adaq2, type "startcoda" to bring up the runcontrol GUI
  • The default configuration is "coincidence", if it is not loaded you can choose it from the menu "configurations->Cool", select "coincidence"
  • Click "Platform->connect"
  • Click on "Download" button
  • Click on "Start (>>)" button, and acknowledge "start-of-run" pop-up window
  • To end a run click on "End" button

• How to kill coda processes
  • At the terminal of adaq2, type "kcoda"

• How to setup the Prescale
  • We just use PrescaleR for Ar experiment.

 login as "adaq" on "adaq2" machine
       type "prescaleR &" to open the GUI
       set desired prescale factors and click "Save" and Exit 

Replay data

• • From a terminal login as aonl machine ( do "ssh a-onl" without the quotes)
  • Password is available on the white board
  • After login to a-onl, type gotritium, then Type

      analyzer
      .x replay_coinc.C
      runnumber (You can see the run number from CODA GUI)

Online GUI

(Last updated: February 15th 2017)

Once the run has been replayed (see instructions above), login to aonl1, aonl2, aonl3, or aonl4 as user a-onl (password on the white board) and do

$ gotritium
[] onlineLHRS
[] onlineRHRS

The output files are stored under adaq1/data1/Ar40_[run number].root

Shift Workers

Counting house: 5501 & 5507 | Run coordinator: 876-1787 | MCC: 7046 & 7047 & 7048 | Crew chief: 7045 | Guard house: 8522

Your Responsibilities

Before the start of your shift: read, understand and sign the safety documentation of the experiments.

Shift Leader

• Communicate clearly and effectively with shift crews and MCC (7047), and log any status information to the HALOG

• Keep track of beam time accounting

• Consult the daily run plans and communicate with [ run coordinator] whenever problems happen that cannot be solved by shift workers.

• Maintain data taking quality and an efficient use of beam time.

• Follow the directives in the COO

• Log the following in a shift summary in the HALOG:
  • run list (describing the goal of this run: eg production on LH2, BMC calibration...) and report main statistic numbers

• • any major events, including accesses

Target Operator

• Watch the target, see [Target Info]

• Assist the shift leader and third person with their duties

Third person

• Start and stop the DAQ. Record the purpose for every single run in the "Run list" binders. Read this to create more blank forms.

• Online replay of all production runs (twice), as described in [online data analysis instructions]. First replay the first 50 k events, check online plots (see next bullet), then run a full replay.

• Compare replay histograms with the sample ones and report to shift leader any unexplained differences. Halog them.

• Fill shift checklist once per shift (for guidance, please see the checklist how-to), go here to find blank copies of the shift check list and the shift check list how to

• The shift leader or TO can help.

Links

Ar(ee'p) DAQ