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The nominal values (as of 01/06/2024):

IMPORTANT: if you notice there is no LCW flow, then notify the Target Expert IMMEDIATELY, to stop the coldhead compressors and the roots pumps.
Also, if you notice any of the following you will have to coordinate with the Target Expert to perform the later mentioned steps.
* Lower inlet pressure
* Higher inlet temperature

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Insulation Vacuum Chamber (IVC)

This is the vacuum space of the superconducting magnet. When the system is running/operational, the IVC should be below 9 x 10E-6 Torr.
If this values goes above 1 x 10E-5 Torr, then IMMEDIATELY contact the Target Expert to fix it.
Note: during magnet LHe fills, LN2 fills, and fridge fills this IVC can fluctuate but it should go back to below 9 x 10E-6 Torr soon.

These are the possibilities for increasing IVC
1) The backing pump is off or not running: you will need to access NM3 and get it started while monitoring IVC.
2) The turbo pump is off or not running: you will need to access NM4, and check the turbo status from its controller at the slow controls rack, clear any alarms/error messages, and start it.
3) A leak in the piping:  you will need to access the cave and check the piping, the check valve (red one on the magnet surface, north side)
4) The fridge pressure also maybe keep increasing. Check whether the roots pumps are running, if not start them.
5) A sudden power outage: IMMEDIATELY contact the Target Expert and have the backup power setup running and start the backing pump and turbo pump while monitoring the IVC pressure.

The top-left plot shows the IVC https://e906-gat1.fnal.gov/data-summary/e1039/target-par-preset/target-tv.php

UVA-QT System

Roots pumps setup

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