[Sbs_gems] [EXTERNAL] Re: Re: Re: Argon/Carbon Dioxide gas cylinders to move to to gas shed 90A

[Jack Segal]

   Since no one seemed interested in the partial cylinders, I moved them to the empty racks
to have them taken away.
   Looking in the cage by building 90 I see three cylinders of Ar/CO2 75/25 and one cylinder of
UHP Argon.

On 12/6/2021 4:30 PM, Ezekiel Wertz wrote:
> Hi Brad,
> 
> That's a good point. But I did know that Jack had found partials a while ago. I did check the Hall A gas shed and it looks like everything that had Holly's name on it got moved. So at first glance it seems like the correct bottles were moved. But I'll get 
> with someone who has access to 90A and look at those bottles. I'm just curious how premix was ordered and we got just Argon.
> 
> Zeke
> 
> On Mon, Dec 6, 2021 at 4:05 PM Brad Sawatzky <brads at jlab.org <mailto:brads at jlab.org>> wrote:
> 
>     Hi Zeke,
> 
>     Just don't get fooled by the rack of partially full bottles in the Hall
>     A racks.
>      >  I don't think there are any more (useful) premix bottles in the
>      >  Hall A racks.  Those that are left are partials -- I checked a
>      >  few of them and they only have 400--500psi in them.  Hardly
>      >  worth the effort to move them given the GEM gas consumption
>      >  rate.
> 
>     If someone can do a count and perhaps send a photo of the bottles
>     in the Test Lab rack we can get the Techs to help move them over.
>     (I can do this tomorrow, as long as I know what I'm allowed to grab.)
> 
>     -- Brad
> 
>     On Mon, 06 Dec 2021, Ezekiel Wertz wrote:
> 
>      > I'll check the Hall A gas shed when I go over for the RC meeting. To
>      > see if any are there.
>      >
>      > Zeke
>      >
>      > On Mon, Dec 6, 2021 at 2:35 PM Holly Szumila-Vance <[1]hszumila at jlab.org <mailto:hszumila at jlab.org>>
>      > wrote:
>      >
>      >   Yes there's several in the test lab rack. Maybe like 4 or 6 (can't
>      >   remember off the top of my head).
>      >
>      >   However, we need to see what is over at the Hall-there should be more
>      >   premix over there.
>      >
>      >   From: Brad Sawatzky <[2]brad at swatter.net <mailto:brad at swatter.net>>
>      >   Reply-To: "[3]brad at swatter.net <mailto:brad at swatter.net>" <[4]brad at swatter.net <mailto:brad at swatter.net>>
>      >   Date: Monday, December 6, 2021 at 2:34 PM
>      >   To: John Boyd <[5]jab7bp at virginia.edu <mailto:jab7bp at virginia.edu>>, Brad Sawatzky <[6]brads at jlab.org <mailto:brads at jlab.org>>
>      >   Cc: Holly Szumila-Vance <[7]hszumila at jlab.org <mailto:hszumila at jlab.org>>, Mark Jones
>      >   <[8]jones at jlab.org <mailto:jones at jlab.org>>, Jack Segal <[9]segal at jlab.org <mailto:segal at jlab.org>>,
>      >   "[10]sbs_gems at jlab.org <mailto:sbs_gems at jlab.org>" <[11]sbs_gems at jlab.org <mailto:sbs_gems at jlab.org>>
>      >   Subject: [EXTERNAL] Re: [Sbs_gems] Re: Argon/Carbon Dioxide gas cylinders
>      >   to move to to gas shed 90A
>      >
>      >   I don't think there are any additional premix near the Hall A gas shed,
>      >   other than the partials...
>      >
>      >   Holly, are there more in a test lab rack?
>      >
>      >   On December 6, 2021 11:23:38 AM EST, John Boyd <[12]jab7bp at virginia.edu <mailto:jab7bp at virginia.edu>>
>      >   wrote:
>      >
>      >     I went to grab some gas from 90A and I realized that of the 6 cylinders
>      >     we moved into 90A on Friday, only 2 of them were pre-mix. The other 4
>      >     were pure Argon. I'm hoping that there are still 4 pre-mix cylinders
>      >     over at Hall A and that these 4 argon bottles were brought just
>      >     accidentally in place of them.
>      >
>      >     Please let me know how to confirm this and proceed.
>      >
>      >     Best,
>      >
>      >     John
>      >
>      >     On Thu, Dec 2, 2021 at 6:24 PM Brad Sawatzky <[13]brads at jlab.org <mailto:brads at jlab.org>> wrote:
>      >
>      >       I moved six 75:25 premix cylinders to the EEL gas racks this
>      >       afternoon.
>      >       There are another 2--3 premix cylinders in EEL/125.  That is perhaps
>      >       ~2 weeks worth of gas for the SBS GEMs -- probably enough to cover
>      >       December.
>      >
>      >       I don't think there are any more (useful) premix bottles in the Hall A
>      >       racks.  Those that are left are partials -- I checked a few of them
>      >       and
>      >       they only have 400--500psi in them.  Hardly worth the effort to move
>      >       them given the GEM gas consumption rate.
>      >
>      >       * Holly or Jack:  I will leave it you two to coordinate and purchase
>      >           more premix if needed.  I think we all got the recent email from
>      >           Purchasing that the (official) lead-time is now 21 days for most
>      >           premix.  If we want premix gas for January, we should probably
>      >           order ASAP.  (Unless there are orders that just haven't shown up
>      >           yet?)
>      >
>      >       The current plan is to switch to nitrogen over the holiday
>      >       break.  That may require one person to come on-site at the end
>      >       of Dec to swap a bottle.  John will contact Mark, et to ensure
>      >       at least he and one other GEM expert are on the 'Holiday access
>      >       list' so they can take care of this.
>      >
>      >       -- Brad
> 
>     -- 
>     Brad Sawatzky (he/him), PhD <brads at jlab.org <mailto:brads at jlab.org>> -<>- Jefferson Lab/ Hall C/C111
>     Ph: 757-269-5947  -<>-  Fax: 757-269-5235  -<>- Pager: brads-page at jlab.org <mailto:brads-page at jlab.org>
>     The most exciting phrase to hear in science, the one that heralds new
>        discoveries, is not "Eureka!" but "That's funny..."   -- Isaac Asimov
> 

-- 
John(Jack) Segal
Halls A and C Spectrometer Support Manager
Thomas Jefferson National Accelerator Facility
12000 Jefferson Avenue
Suite 12
Newport News, VA 23606-4486
Phone: (757) 269-7242
Cell: (757) 320-9977