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  • Beginning of shift
    • Arrive at NM4 at least five minutes before the start time of your shift.  Take over the status and the plan of the target system from the outgoing shifter.
    • If the Shift Leader is absent, call MCR (x3721) and say something like "This is <YOUR NAME> at SpinQuest (NM4), and we are starting a new shift."  The MCR person will thank you.
    • If the Shift Leader is absent, complete the "Beginning of Shift" form in the ECL elog.
    • Complete the Target Operator Shift Report : ← copy this table to your ECL elog entry and fill it out.
      Note: Submit this ECL elog entry at the end of your shift, as you cannot edit an ECL entry after posting/submitting.
    • Confirm that the "Active Alarm for Target Operator" page is functioning on "uva-nuc-02", as instructed in this page.
    • Power Outages can be very hard for the cryogenic system to recover from.  If you are aware about an upcoming power outage, or having an outage or even a power flicker, then let the Target Expert know immediately.
  • Frequent checks: 
    •  IMPORTANT!!!  Is the Internal Vacuum Chamber (IVC) good and at pressure below 10-6 Torr (spikes above 10-5 Torr for a few seconds during filling are OK, but if it takes longer than a few minutes to come back down, then check the controller's front panel from the camera cameras (on CCP machine): the following image shows when the turbo-pump is working normally.
      Image Added

      and see whether you are seeing a blinking green light or any error message with  with the RED light       (see the following images), then mention it in the discord and immediately follow the steps on this page IVC and also call the Target Expert on Shift.
      IVCError.jpgImage Added

    • Is the Liquefier producing normally without any alarms (RED lights indicating alarms on the QT screen) and are the cold head compressors all running (green light)? If there is an alarm or the coldhead indicators are RED, then call the Target Expert.
    • Check whether the magnet is ramped up.  Is there any sign of a target magnet quench? If it is and at some point you see the magnet pressure shoot up to 9 psi in a few seconds, call the Target Expert immediately. The magnet control VI will also indicate a quench.
    • What are the LCW temperatures?  If
  • Every hour
    • Confirm that all computers/programs are running (not got stuck), including the QT HMI screen, the PDP screen, the target computer, the microwave+lifter computer, "uva-nuc-01" and "uva-nuc-02".
    • Check all strip charts and communicate with the Target Expert immediately if you notice anything unusual: especially IVC, LCW flow, LCW pressure, LCW temperature, LCW temperatures on QT compressors
  • On-demand
    • Manipulate the Microwave Control system in case of the "Production" mode.
    • Respond to all target-related alarms, as instructed in this page.
  • End of shift
    • Hand over details to the incoming shifter.
    • Ensure to submit your completed Target Operator Shift Report
    • If the Shift Leader is absent, complete the "End of Shift" form in the ECL.

Strip charts: https://e906-gat1.fnal.gov/data-summary/e1039 (click on "All Parameters" under the "Target Control Data")


In addition to the tasks mentioned (above), perform the following Routine Maintenance Tasks for Owl/Day/Swing shifts

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Idle Mode

Hold Mode

Production Mode

Target Preserve Mode


Basic Operations' Direct links

Sub-System
QT
(Helium Liquefier)
  1. Helium Liquefier (QT) System Summary
  2. How to fill LN2 to the Purifier and Magnet LN2 spaces
  3. How to fix the QT-HMI if its screen got frozen
  4. Fixing dewar level indicator
  5. Resolving Liquefier Blocking Alarm when Liquefier is on Liquefy Mode
  6. Resolving Liquefier Blocking Alarm when Liquefier is on Idle Mode
  7. How to restart the QT PLC
  8. How to fix if the outlet flows of Liquefiers are showing strange values
Magnet
  1. How to control the Magnet Return flow
  2. How to fill LN2 to the Purifier and Magnet LN2 spaces
  3. How to move the magnet current
  4. Magnet Power Supply Ramping Up - Down Procedure
Separator
  1. How to control the Separator Return flow
NMR
  1. How to take a baseline and then take data on UVA-NMR system
Microwave
  1. Microwave Operation
Fridge, Gate Valve
Gate-Valve Bypass
  1. Fridge Fill Procedure
  2. How to control the Fridge Return flow (GV and GV Bypass)
  3. How to Open or Close Fridge Valves
  4. Fridge Filling Procedure (Warm Filling) Using Bypass Valve
  5. Fridge Filling Procedure (Cold Filling) Using Run Valve from any level of Liquid Helium in the Fridge
  6. How to identify the fridge LHe level
Roots-pumps
  1. Roots pumps PLC interface
Kmag, Fmag
  1. How to power ON Fmag or/and Kmag

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Useful information for troubleshooting







Older information


  • Frequent checks: 
    •  IMPORTANT!!!  Is the Internal Vacuum Chamber (IVC) good and at pressure below 10-6 Torr (spikes above 10-5 Torr for a few seconds during filling are OK, but if it takes longer than a few minutes to come back down, then check the controller's front panel from the cameras (on CCP machine): the following image shows when both turbo-pump and HiCube are working normally.
      Image Added

      and see whether you are seeing a blinking green light or any error message with the RED light       (see the following images), then mention it in the discord and immediately follow the steps on this page IVC and also call the Target Expert on Shift.
      IVCError.jpgImage Added
      On the high-cube pump was installed at NM3 and a camera was also arranged. So, check that camera and follow the instructions on How to restart the high-cube pump
      if you see the red light with an error message (see the sample image below), also notify the target team via discord.
      Image Added