Is there any reason you don't use argon as your rinse gas? It's much
cheaper.

On Fri, Nov 3, 2017 at 11:15 AM, Van Horn, David <
david.vanhorn@backcountryaccess.com> wrote:

> Fortunately my only use for helium is as a rinse gas.  Vac the system,
> fill with He, then vac it again, and call it clean.  :)
>
> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf
> Of alan.b.pearce@stfc.ac.uk
> Sent: Friday, November 3, 2017 3:30 AM
> To: piclist@mit.edu
> Subject: RE: [EE] Vacuum plumbing
>
> > I still wish I could find a book/document/etc that describes the
> > building of a vacuum system for the range of 1 torr to 10 microns or so=
..
> > Seems to be a black art.
>
> Judging by the difficulties a program I am working on is having sealing
> helium over a temperature range, it is very much a black art.
>
> Thankfully I'm only involved in the electricals ...
>
>
>
> --
> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
> View/change your membership options at http://mailman.mit.edu/
> mailman/listinfo/piclist
>
> --
> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
> View/change your membership options at
> http://mailman.mit.edu/mailman/listinfo/piclist
>
--=20
http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.