Helium Level and Field Drift

 Spectrometer AC200-31 AC200-33 AM300   AV300    AV400    DRX500    AV600  

 Installation year

 1990 1988 1984 2017 2012 1997 2007

 Helium level
  (figure)
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 Field drift
  (figure)
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 X,Y,Z-Shims drift
  (figure)
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 Log files
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Helium refill date: Mon 2 July 2018   [10% He AC200-3145 litersQuench:18 July 2018 ]
[14% He DRX50037 liters Quench:22 July 2018 ]
[16% He AM30035 liters Quench:29 July 2018 ]
[70% He AV60069 liters Quench:22 August 2018 ]
[64% He AV40040 liters Quench:4 November 2018 ]
[78% He AV30024 liters Quench:4 February 2019 ]
Order 266 liters of liquid helium[85% He AC200-3316 liters Quench:27 July 2019 ]

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