Spinlanders;
See a large scale He liquefaction facility at the University of Florida run by my friend Greg Labbe. I believe it was originally NSF funded and is supported by reasonable user fees:
http://www.phys.ufl.edu/~cryogenics/
We love these guys!
Robert Harker
From: NORMAN CHU [mailto:norman.chu_at_piramal.com]
Sent: Monday, June 03, 2013 2:07 PM
To: ammrl_at_ammrl.org
Subject: AMMRL: LHe Recovery/Reliquefaction vs Bruker Aeon magnet?
Hi all,
We're in the process of budgeting for a new NMR to replace our slowly failing old one, and I've recently started to read about this impending LHe supply cost increase in 2015. Having read through a few primers about helium recovery, I'd like to ask the list about their experiences with helium recovery.
Also, Bruker apparently has a new series of Aeon magnets that have no LN and use LHe with active refrigeration with LHe fill times every 18 months instead of 6 months. Does anyone have any experience with these (fairly new) magnets? Would the infrastructure, service costs, and schedule compare to the helium refrigeration system for a cryoprobe?
I've read that setups for helium recovery/reliquefaction on-site are in the $300-500k range, but how does this compare against an actively refrigerated magnet and whether it is worth justifying the initial costs? I'm curious as to the opinions of the others on the list.
Thanks & Regards,
Norman Chu
Received on Tue Jun 04 2013 - 09:29:05 MST