Hi Jerry
We have kept records on fills from before and after our recovery system. We
see no change in duration, helium used, or pressure in the supply dewar. We
consistently use the same Dewar PSI and flow before and after recovery system
install, we also are very consistent on when we fill magnets so helium used
and duration of fills are consistent.
I have put pressure gauges on our recovery lines during fills and never had
anything go over 0.1 PSI. This was just after our heat ex-changers and further
down the main line as well.
Design of your system can be a factor here too! If you try to use too small
of an exhaust line or main line you could have issues.
Hope that helps
Greg
Gregory P. Wylie, Ph.D
NMR Facility Manager
Texas A&M University
Department of Chemistry #3255
580 Ross St.
College Station, TX 77843-3255
gpwylie_at_tamu.edu
979.458.0705 (voice)
979.845.4719 (fax)
706.206.0007 (cell)
http://nmr.tamu.edu
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Received on Fri Apr 03 2026 - 07:38:16 MST