Alarm Handler

                            cd ~/Desktop/PRex
                            ./tgtgui
                            Select the ALARMS button
                        

Beam and Hall Checks

Alarm Handler

• VESDA System OK? (see Figure 8)
  • VESDA is the smoke/fire detection and alarm system
  • Check the Hall A VESDA Console on the wall behind the door
  • Every light should be green and in the minimum lowest alert setting.
• Is alarm handler running on hacweb7?
  • On hacweb 7, you should see a window in the upper right corner of the screen
    • Look first in the "Alarm Handler" desktop to see if it is there
    • Check all the windows if not
  • If not open, see Alarm Handler
• Is the volume up on hacweb7? (both hardware and software)
  • Go to Alarm Hall A Alarm Handler -> Setup -> Test Beep Sound

Hall A Tools and related menu screens

Beamline

• Visual Hall Inspection OK? (see Figure 9)
  • Make sure to move the camera around and zoom in (See Figure 10)
  • when complete, zoom all the way back out
• Beam Energy (MeV) (see Figure 2)
• Beam Current (µA)
• Current Target (45 degree ladder/90 degree ladder)
  • See Target GUI on Target computer
  • Or JMenu -> Search for Target GUI -> "Hall A Target Lifter" and it has the same information (as well as raster and other useful information)
• Beam Position Monitor (BPM) X/Y (mm) A
• Beam Position Monitor (BPM) X/Y (mm) E (Called BPM B in Hall A Tools)
• Downstream raster (labelled B or 2, US raster is not in use) on?
  • Check the Oscilloscope in Counting House Middle Room: Yes/No
  • when raster is off, looks like Figure 3
  • when raster is on, something like halog 3654466
• Raster size (x vs. y in mm)?
  • You can also check with the JMenu -> Hall A Fast Raster screen
• Fast feedback (FFB) on? Yes/No - should be on during Parity Production
  • The easiest check is to look at the FFB information in bottom left corner of Hall A General Tools
  • An additional way to check whether the FFB is on or off:
    • in a terminal window, type JMenu
    • search for "fast"
    • Choose "Fast Feedback Control" (see Figure 5, which shows the upper left corner when FFB is OFF)
    • The status is indicated by the button that is depressed (OFF and RUN in the figure)
    • Do not use any of the Hall A Fast Feedback Control menus other than the "Fast Feedback Control" one. The screen should be small and have Hall A and C on it. You should NOT be able to edit any of the parameters.
  • FFB should be ON during normal production running!
  • However, FFB will be paused during beam modulation
  • If BPMs are saturated or for FFB troubleshooting see: FFB troubleshooting
• Is the Beamline Vacuum OK?
  • JMenu -> "vacuum hall a shield to target" -> Hall A Shield Wall To Target
  • Or pull up stripcharts in LivePlot and monitor them through your shift
• BCM temperature (K) (PV, PS, Thermocouple)
  • These temperature readbacks are located in the middle DAQ room, in rack CH0B06 (far left) at the very top (see Figure 4)
  • If these differ by +/-.5 from (110.0, 110.0, ~115.0) (Fahrenheit) contact RC and halog
  • It is important that these temperatures stay stable within 0.5 Fahrenheit or else the BCM current readout will become uncalibrated (only the two values on the right are critical)
• Accelerator Arc Beam Energy NMR locked?
  • JMenu -> Search for "Energy Lock GUI" -> Applications section -> "Energy Locks"
  • Verify if the box locked is ON/OFF - should be on during Parity Production
  • If the 3 "OR", and "1A" lights are green then the energy is locked. In FFB on mode "2A" will be yellow or red and this is OK, in non-FFB mode it needs to be green too - HALOG 1, 2, 3, 4
• Is BPM 11X (IPM1C11) saturated? It needs to be not saturated during all Parity Quality Beam, or else we cannot take useful data.
  • If Fast Feedback is OFF: Check in JMenu -> Search "iocse9" -> Choose Application: SEE BPM Live Display Screen - iocse9 -> Check the many green boxes for IPM1C11 Hi X Sat channel (its a red or green box, Green is good, Red is bad and you should call the RC)
  • If Fast Feedback is ON: The above menu will be frozen and not useful, instead check the Online Plots of BPM11 and Event Cut information from Parity Analyzer (should be in the Crucial Systems and Event Cut tabs)

Hall Status

• Are the Compton Background Rates sufficiently low (<30kHz according to Adam)?
  • JMenu -> Plots -> MyaPlot -> Right Click and Load a Configuration -> Select PREX in Directories -> Compton Background Rates -> Ok Move to Now
  • Units are in Hz
  • If you see anything above 30kHz in any of the strip charts, this is bad, and the Compton Expert on shift should be notified
• Is the Compton DAQ running? (It should be during Parity Production)
  • Ask the Compton expert on shift
• Is the Compton Photon Detector PMT High Voltage on? (It should be during Parity Production)
  • On the HV computer go to workspace 3. There should be a HV GUI there labeled hatsv5:2003.
  • Naviagte to Slot 5 and look at channel L1.9. It should be set to -1569 V and turned on.
  • If either it is not turned on and we are in production, or the voltage is lower (as in more negative) than -1612 V, contact Adam immediately.
• Is the Moller Polarimeter within operational temperature limits? See Figure 11 for reference or Simona's elog entry
  • The screen can be obt ained through: NewTools -> JMenu -> "Moller Polarimeter Temperature Monitor" -> Hall A Moller Temperature
  • The optimal points are: Cryocooler (T1) ~ 3K, Magnet (T2) ~3K, Magnet Lead #1 ~40K, Magnet Lead #2 ~ 40K
  • If something happens for the Moller Polarimeter, Call Simona
• Septum current (A) and polarity? Matches whiteboard set-point?
  • Big Bite: JMenu -> Search for Big Bite Septum or Hall A Septum
  • HES: Hall A Tools GUI, find the HES Dipole button in the top right section
  • Before adjusting septum please read and sign the septum OSP document (in the yellow OSP folder)

Gases

• Pressures (see Figure 6)
  • Argon pressure (psi)
  • Ethane pressure (psi)
  • CO2 pressure (psi)

• Open Hall A General Tools
• Left Arm momentum (GeV)
  • The blue box called P0 SET (0.00000 GeV/c in Figure 1)
• Left Arm Q1, Q2, D, Q3 regulators on (yes/no?)
  • Click on the small blue square next to P0 SET (GeV/c) (see Figure 2)
  • Regulator status for each magnet is indicated by the depressed button (all regulators are off in Figure 2)
  • Check the whiteboard for intended settings
• Left Arm cryo flow level OK (Green)?
  • He > 60% (Ignore Nitrogen)
  • In the column labelled L(%) (100.2, 90.3, and 89.3 in Figure 1)
• Left Arm NMR OK? Yes/No
  • The NMR field readback is indicated in the "D-N" row of the GUI
  • The NMR meter is useful only at > ~GeV set points, so if the magnets are too low then the NMR readback will be useless and fluctuating wildly (in which case the Gauss meter readback is useful, indicated in the "D-G" row)
  • The NMR read-back quality can also be determined by looking at the Oscilloscopes in CH main room rack CH01A02 (above the adaq2 terminal). If the NMR is locked then the triangle wave and NMR readback will be synced and locked onto eachother in both scopes.
• Left Arm Q1 B-Field (+/-T), Momentum (GeV/c), Polarity (N/P), current (A)
• Left Arm Q2 B-Field (+/-T), Momentum (GeV/c), Polarity (N/P), current (A)
• Left Arm D B-Field (+/-T), Momentum (GeV/c), Polarity (N/P), current (A)
• Left Arm Q3 B-Field (+/-T), Momentum (GeV/c), Polarity (N/P), current (A)
• Are the magnets properly meeting their setpoints (are the read-back values within 0.5% of the setpoints?)
  • Check the setpoints and readbacks by clicking on the I(A) menu button and looking at each magnet's GUI independently
  • On the bottom left in the black box called BOX CONTROLS are the Setpoint (Amps) and the ReadBack (Amps)
    • Be careful , as you are able to change the settings from within these GUIs.
  • Also, all magnets should be in negative polarity for Prex/Crex
• Left VDC gas flow on (top/bottom)?
  • Indicated by Orange "Gas Flow" panel in Hall A General Tools screen T_VDC/B_VDC l/h readbacks
• Left VDC HV on (top/bottom)?
  • See VDC HV GUI for more information
  • Look at the kV values in the VDC HV section of the Hall A Tools (Figure 3)
• VDC thresholds (yes/no?)
  • See Hall A General Tools bottom right corner (Figure 4)
  • All 4 set points and readback values should be 3.0 V
• Left s0/s2m HV on? (s0 may be off for production, check with expert)
• Main Detector HV on/off? -
  • See LHRS MainDet HVs
• SAM HVs on/off?
  • See SAMs HVs
• Have you checked the quality of the most recent online plots for the Left ARM counting mode DAQ (if a run was taken during your shift)?

CODA

Starting Parity DAQ CODA

Starting the GUI

• Log in as apar@adaq1
• In a terminal type startcoda
  • 4 xterms will appear (red, orange, green and yellow) as well as the main CODA window (see Figure 1)
  • CODA will automatically load the last configuration used. If you are ok with this then just go to Platform->Connect
• To change the configuration, choose Configurations->Cool
  • Select the desired configuration from the dropdown list
  • Production running would be ALL_PREX
  • Once you have loaded a configuration, some of the icons (see descriptions below) will change from grey (see Figure 2) to green (Figures 3-5)
• Press the configure icon (see Figure 3)
  • Warnings about waiting for a ROC can be ignored if it does not take too long to respond (~10s) and things are eventually successful
  • Error messages should be taken seriously
    • You can try a Reset and re-Configure
    • If that doesn't work - see DAQ Troubleshooting
• Press the Download icon (see Figure 4)

Starting a Run

• After starting the GUI and loading a configuration (see above)
• Press the Prestart icon (see Figure 4)
  • As above, warnings about waiting for a ROC can be ignored (if it does not take too long to respond, ~10s) and things are eventually successful
  • Error messages should be taken seriously!
    • You can try a Reset and re-Configure
    • If that doesn't work - see DAQ Troubleshooting
• Press Go (see Figure 5)
  • a window will pop up where you can add notes (see Figure 6)
    • you can click the buttons to choose the data that goes to the runDB
    • you can also add a comment at the bottom if needed
    • Press "CLICK HERE TO ACCEPT AND START THE RUN"
  • the event counter should start incrementing (see Figure 8)
  • the event rates should be expected values
• If you made a mistake, such as:
  • accidentally loading the wrong configuration
    • stop and restart the run
    • make a followup halog entry and refer to the run
    • take note of it in the run list in the shift summary
  • accidentally submitting the wrong notes in the notes window
    • you can let the run continue as long it is the correct configuration
    • make a followup halog entry and refer to the run
    • take note of it in the run list in the shift summary

Ending a Run

• Press End
  • A window should open so that you can add any needed comments (see Figure 7)
    • add any notes if necessary
    • Press "CLICK HERE TO ACKNOWLEDGE AND EXIT"
  • if this was a normal end of the run, and it ends successfully
    • all the states should change to downloaded
    • the Prestart icon should be green
• If the run ends because of a problem with CODA - see DAQ Troubleshooting

Description of the GUI

Numbered from the top left of the GUI window (see any of the Figures):

1. Configure (tools) - this opens a drop-down menu to choose the configuration
2. Download (floppy disk) - this loads the chosen configuration to the crates
3. Prestart (triangle with point to right followed by ||) - this will prepare to start a run
4. Go (triangle with point to right) - this starts a run
5. End (square) - this ends a run
6. Fast Start (double-triangle pointing right) tries to go through all the steps (can be used as long as things aren't changing)
7. Reset (double-triangle pointing left) configured, but not downloaded (if you need to change configuration or GUI is wonky)
8. Pause (two vertical bars) - pauses a run (rarely used - to quote Paul King "Nothing good can come of this.")

Starting Counting Mode DAQ CODA

"Counting mode" designate 2 independent DAQs for each of the two spectrometers (in contrast with parity DAQ which includes both). It shall be run after beam is set up for counting mode

• For left HRS:
  • Run CODA (usual "startcoda" command) on adaq@adaq3;
  • default DAQ configuration should be LeftHRS;
• For right HRS:
  • Run CODA (usual "startcoda" command) on adaq@adaq2;
  • default DAQ configuration should be Righthrs;

Starting Compton DAQ CODA

The information for this has been moved to Compton DAQ HOWTO. Consult there for how to start and stop runs.

Shift checklist

• Latest run type (Test, Physics,..)
  • You can get this from the auto-logs of start and stop runs
  • It is also in the runstart and runend windows
• Is the auto replay script running?
  • ask the analysis expert
• Run added to shift summary?
  • keep up with the run list in your shift summary
• Please attach the left/right HV and Scalers Screenshots to the shift report (do we need this)?
• Time of beginning of latest run
  • This is at the top of the CODA Run Control Window
  • You also can get this from the auto-logs of start and stop runs
• Latest run number
  • This is at the top of the CODA Run Control Window
  • You also can get this from the auto-logs of start and stop runs
• Check the scalers (snapshot)

Beamtime Accounting

Open your browser on an a-onl@aonl machine

(firefox from an adaq login terminal will work too)

1. https://bta/ or https://accweb.acc.jlab.org/bta/
2. Login with your CUE username/password
3. File->Open Timesheet
4. choose: Hall:A -> Day-> Shift: Owl (or Day or Swing)
5. click "Open"
6. If you want to edit hour(s), Please click very right "pencil" icon, then make a comment or edit time -- DO NOT USE *EDIT ALL* ON THE BOTTOM
7. "Load from EPICS" should work in production mode, however you should check the numbers. Also it does not work for other modes like moller commissioning or tests.
8. MCC likes to have the sheet updated throughout the course of the shift, and they need the first 7 hours completed right at the 1-hour before the end of your shift mark (their shifts end earlier than ours)
9. To save your edited info into DATABASE, just click "V" (check-mark), it's in the same place where the "pencil" icon was. Don't forget to save, your edits will be wasted !
10. When MCC call you for BTA (An hour before your shift end), click "SAVE INFO for MCC"
11. Read number ABU and BANU. (That's it ! This should work !)
12. End of shift, please sign off
13. Once you've done, please Logout.