Hi Clemens,
Many thanks and I agree. I am thinking of options for a department like ours
to go up in field, given the cost of new magnets. If a donated magnet were
available, it would have to be taken down anyway. I'm just curious as to how
well a reseal works vs just going with the magnet as is. Do you know what
the going rate is for moving and energizing?
All the best,
Rick
Richard W. Fitch
Professor, Department of Chemistry and Physics
Councilor, Wabash Valley Section, American Chemical Society
Indiana State University
600 Chestnut Street
Science Building, Rm. S35E
Terre Haute, IN 47809
Phone: (812) 237-2244
Fax: (812) 237-2232
"Do an apparently simple experiment that gives you an important bit of information..."
Julius Axelrod
The love of money is the root of some evil. Fear and insecurity are the root of most of it.
From: main_at_ammrl.groups.io <main_at_ammrl.groups.io> On Behalf Of Anklin, Clem ens via groups.io
Sent: Friday, August 28, 2026 4:00 PM
To: main_at_ammrl.groups.io
Subject: Re: [AMMRL] Reseal on older magnets
Rick
if it ain't broke don't fix it. If a magnet shows no significant change in
nitrogen and helium consumption it is good.
In order to reseal you have to de-energize and warm up. Nobody will guarantee
that it comes back up after this procedure. The chances are good but never 100%.
The procedure also costs a lot of helium.
With best regards
Clemens
On 8/28/2026 3:14 PM, Richard Fitch via groups.io wrote:
Dear Spinlanders,
I have a quandary on magnets and lifetimes. I have heard many times from the
group on the excellent lifetime for magnets but am curious as to the experience
of the group with refurbishing/resealing older magnets. We are batting
around the idea and it would be useful to know everyone's successes and
failures with such things. I'm happy to post an anonymized summary if there
is sufficient interest.
All the best,
Rick
Richard W. Fitch
Professor, Department of Chemistry and Physics
Councilor, Wabash Valley Section, American Chemical Society
Indiana State University
600 Chestnut Street
Science Building, Rm. S35E
Terre Haute, IN 47809
Phone: (812) 237-2244
Fax: (812) 237-2232
"Do an apparently simple experiment that gives you an important bit of information..."
Julius Axelrod
The love of money is the root of some evil. Fear and insecurity are the root of most of it.
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Received on Fri Aug 28 2026 - 13:53:53 MST