Tour Escort Information

Tour Escorts must have current status on the NuMI Underground Safety training course. Having taken the training, you, as an Escort, should know the procedures for exiting in an emergency. If an emergency occurs when you are with a tourist group underground, you will have to show those people what to do - such as helping put on their emergency air packs, if called for - and you will have to lead them out - perhaps via the Decay passage, or perhaps waiting with them in the Egress passage and helping them exit using the emergency elevator. While the possibility of an emergency occurring is small, if one does occur, you are responsible for those people's safety. If you don't think you can handle that, then you should not be a tour Escort!

Preparing for your Tour

You must carry a real flashlight. When you are part of a work group, you can all just utilize the little LED lights on the keys - everyone in the work group has a key, and thus everyone has an LED light. But tourists don't get keys, so you are the only one with a little LED light, and this is not sufficient for a group. Make sure you have a flashlight that uses at least a couple of AA batteries equivalent. We do keep flashlights available at the Building, but there is no guarantee that there is one there, or that the batteries work. It's best to acquire one of your own to carry.

Make sure you understand where you are meeting your tour. If it is a small group you can have them meet you in the Nu Control Room when you go there to pick up a key, or you can arrange to meet them in the Atrium after you have a key. The Education Office docents can meet you at the Minos Building with groups they are showing around.

If the tour group size is large, you should check whether any other significant work is going on underground during the time of the tour, to make sure you won't go over the 50-person maximum, and don't get in the way. Techs and contractors generally end their workday by 3:30pm (they start at 7:30am), so late afternoon is the best time for larger groups.

Read over the Safety Briefing so you know what to say to the tour group when the time comes. Tourists should sign a copy of this briefing, or for large tours a 'Large Tour Sign-In Sheet' is available. You should say to them that by signing, they acknowledge that they understand your safety briefing. Copies of the Safety Briefing and Sign-In sheets are available at the Service Building in front of the Detector Plane, or in the Nu control room. A copy of the video Safety Briefing which was optimized for time is here.

Remind yourself how to use the emergency air packs, because you will have to show their use to the tour group. There is a popped-open demo emergency air pack in the Nu Control Room if you are meeting your tour group there. There is another demo air pack it the Minos Building if you want to do their briefing over there. You can watch the training video for the Ocenco M20 here.

Batches of brochures should be set on the table in front of the display plane at the service building. The safety information in it mostly tells them to listen to you. The brochure contains a schematic map of the underground areas, and a brief description of the beam and experiments, which you can use to expand upon. If you would like a slightly larger map to use during your tour, print out a copy of this NuMI Tunnels schematic - some extras are available in the briefing binders.


All Escorts must check out a key in the Nu Control Room.

The regular building entrace, next to the big roll-up door, should be accesible by scanning your Fermilab ID on the small grey pad next to the door, but you may want to verify that ahead of time. The elevator key just gets you into the elevator alcove, not the regular Building door. You can go into the elevator alcove from the outside (patio door) and walk back into the Building High Bay from there, but it's handy having a Building key.

Tourists do not get issued a key. You enter your key number, and your tour permit number in the key logbook.

At the Building

Some hard-hats are available at the Building, in the elevator room.

Warn tourists not to lean over the shaft guardrail with their helmets on!

Escorts badge-in at the badge board as usual - leaving your FNAL ID tag. Each tourist, should also take an orange tag. If tourists do not have a Fermi, or other picture ID, they can use a visitor tag on the board in place of the orange tag - there should be a small stack of them next to the badge board. Remove the visitor tags and replace with the orange badges when you come back up (and take your ID of course). Remember to also collect the hard hats. Visitors may keep the visitor tags if they wish.

Tour Materials

There should be brochures at the Building which touists can take home with them. You might want to read through one and use it as part of your presentation.

There is of course the display plane. The display, being cut open and having scintillator panels visible, is actually easier to use to describe how the detector works than when you are underground in front of the real thing. There are also a cut-open Alner box, an electronics board, and fiber cable (all busted so don't worry about them). Keep in mind that the coil power supply makes a lot of noise - you might want to use time in the Building, where it is usually quieter, to describe what will be seen underground. There are a few posters arranged around the display plane in the Building, to help in describing the beamline and detector. Sometimes these get shifted around if something large was recently moved in or out of the Building.