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: Thu 12 July 2018   [10% He AC200-3145 litersQuench:31 July 2018 ]
[11% He DRX50038 liters Quench:29 July 2018 ]
[11% He AM30037 liters Quench:2 August 2018 ]
[65% He AV60081 liters Quench:23 August 2018 ]
[63% He AV40041 liters Quench:26 November 2018 ]
[76% He AV30026 liters Quench:9 February 2019 ]
Order 286 liters of liquid helium[83% He AC200-3318 liters Quench:27 July 2019 ]

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