Before your first shift at LArIAT


Gaining Access

  • First, set up your Fermilab computing account and Kerberos. This can be done by following instructions here.
    • Check that you can issue a Kerberos ticket with
       kinit <yourKerberosPrincipal>@FNAL.GOV
      and confirm that you have gotten a kerberos ticket by checking the output of the command klist.
  • If you are at Fermilab:
    • Check that you are connected via ethernet, or to the Fermilab fgz Wi-Fi network and not the guest Wi-Fi network. This is required to access the lariat shift machines. The latter may lead to "Connection reset by peer" errors, refusing you access. Register your device to the fgz network here.
    • If you find you cannot SSH into, make sure your SSH config file allows X11 forwarding and all GSSAPI options. Further details can be found here.
  • If you are outside of the lab:
    • Download and run the Fermilab Virtual Private Network (available here )
    • Log onto the VPN with your Services Account credentials
  • SSH into the control room machine with the VNC shared desktop ( with your credentials (this is the one of the machines you will be using for shift work if at MCenter). Run the command:
    If this fails, ask one of the following collaborators (, or ) to add you to the ~lariat/.k5login list, which will grant you SSH access.

Important if you are at Fermilab

Getting a Fermi ID badge

Make sure you have a Fermi ID badge. If not, you can sign up for one at the Users Office located at the Mezzanine at Wilson Hall. More info.


Get trained! You can find the status of your training at this link.

  • All new Fermilab users need to take the New Employee/User ESH&Q Orientation training course.
  • The minimal training to work a local shift for LArIAT is the FTBF Hazard Awareness Training. All training courses can be found here.
    • If you do not see FTBF Hazard Awareness Training on your list at all, email to request to have this added so you can take shifts.
  • If you plan on staying for a long period of time, it would be useful for you to train in 'Fermilab Controlled Access' and both the 'Radiological Worker' training courses.

Next steps

Signing up for shifts

  • First, register for an account on the elog.
    • When your account is approved, you can look at the shifting schedule and look for a filled space, to do a shadow shift.
    • When you've found a slot you're comfortable working in, email the Run Coordinator at: to request to do a shadow shift, which must be completed before your first shift.
    • After completing a shadow shift, you'll be able to sign up for any available shift slot.

On-site: Getting there

  • LArIAT holds two control centers for shifting: ROC West (located on the west side of the Wilson Hall) and MCenter (at FTBF). ROC-w is the preferred location, and MCenter is now the backup location.
  • There are a few methods for how to get to each site, if you don't have a car.
    • Fermilab runs a shuttle (taxi) service between 07:30-16:30, which can be called at any internal phone at: 4225 (HACK).
    • The Housing Office will rent you a bike, providing that the weather conditions allow for it.

That's it! You're ready to start shifting for LArIAT!