Date: Thu, 31 Jul 2025 12:32:35 -0500
_____________________________________
Todd Rappe
Minnesota NMR Center <nmr.umn.edu>
612-625-9147 (office)
651-321-TODD (rings office and mobile)
612-624-8892 (magnet lab)
On Thu, Jul 31, 2025 at 12:25 PM Alvaro Herrera via groups.io wrote:
>
> Anyone has picture of those "pieces" I would like to see if we have some.
>
> Thanks,
>
>
> Alvaro Herrera Ph.D.
> NMR Center Director
> Chemistry & Biochemistry Department
> Auburn University
> ------------------------------
> *From:* main_at_ammrl.groups.io <main_at_ammrl.groups.io> on behalf of Kenneth
> Sharp-Knott via groups.io <kknott=vt.edu_at_groups.io>
> *Sent:* Wednesday, July 30, 2025 11:26 AM
> *To:* main_at_ammrl.groups.io <main_at_ammrl.groups.io>
> *Subject:* Re: [AMMRL] Helium Transfer Lines - Refreshing vacuum. #poll-notice
> Just to follow-up... The reason I ask is the engineer mentioned that most
> people wait far too long. By the time you see evidence of it having gone
> soft, you have likely been losing quite a bit of helium due to excessive
> boiloff for some time.
> Apparently most transfer lines also come with the necessary equipment to
> pump it down. They were some of the bit and pieces lying around the lab
> that I had no idea of the purpose.
>
>
>
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