[dsg-hallb_rich] [EXTERNAL] Re: Fwd: N2 bottle for RICH aerogel dryboxes
Tyler Lemon
tlemon at jlab.org
Thu Nov 19 06:49:54 EST 2020
Hi Marco,
DSG has a regular status meeting at 11:00 on Mondays.
Could this RICH meeting be at 10:00 so not to interfere with that meeting?
Thanks,
Tyler
________________________________
From: Marco Mirazita <Marco.Mirazita at lnf.infn.it>
Sent: Thursday, November 19, 2020 3:30:58 AM
To: Tyler Lemon <tlemon at jlab.org>
Cc: dsg-hallb_rich at jlab.org <dsg-hallb_rich at jlab.org>
Subject: Re: [dsg-hallb_rich] [EXTERNAL] Re: Fwd: N2 bottle for RICH aerogel dryboxes
Hi Tyler,
for me Monday ta 11 is ok,
Let's wait a confirmation also from the others, then I will set up a
bluejeans.
Thanks,
Marco
Il 2020-11-18 15:58 Tyler Lemon ha scritto:
> Hi Marco,
>
> It's good to hear that the next RICH sector is still moving along.
>
> Thursday and Friday next week are holidays for Thanksgiving so we'd
> be able to have the meeting any time next Monday, Tuesday, or
> Wednesday except for
>
> Monday 11:00am - 1:00pm
>
> Tuesday 11:00am - 1:00pm
>
> Wednesday 12:00pm - 3:00pm
>
> Tyler
>
> -------------------------
>
> FROM: Marco Mirazita <Marco.Mirazita at lnf.infn.it>
> SENT: Tuesday, November 17, 2020 5:38 AM
> TO: Tyler Lemon <tlemon at jlab.org>
> CC: dsg-hallb_rich at jlab.org <dsg-hallb_rich at jlab.org>
> SUBJECT: Re: [dsg-hallb_rich] [EXTERNAL] Re: Fwd: N2 bottle for RICH
> aerogel dryboxes
>
> Hi Tyler,
> despite the problems due to the covid emergency, the construction of
> the
> second RICH module is progressing and we are getting close to several
>
> shipments of material to jlab, not only the aerogel mentioned by Bob.
> Therefore I would like to have a meeting with you, the DSG and the
> other
> people involved in the RICH project to discuss how to plan the work
> for
> the next few months.
> Would you be available for a meeting next week? If yes I will make a
> doodle to fix the date and time.
> Thanks,
> Marco
>
> Il 2020-11-16 16:45 Tyler Lemon ha scritto:
> > Hi Bob,
> >
> > Thank you for the information.
> >
> > Tyler
> >
> > -------------------------
> >
> > FROM: Bob Miller <rmiller at jlab.org>
> > SENT: Monday, November 16, 2020 10:43 AM
> > TO: Tyler Lemon <tlemon at jlab.org>
> > SUBJECT: Fwd: [EXTERNAL] Re: Fwd: N2 bottle for RICH aerogel
> dryboxes
> >
> >
> > Hi Tyler,
> >
> > Please see Marco's response below. Based on his email, I will leave
> > the repairs or purchase to you and I will not design an N2 system
> at
> > this time.
> >
> > Regards,
> >
> > Bob
> >
> > -------- Forwarded Message --------
> >
> > SUBJECT:
> > [EXTERNAL] Re: Fwd: N2 bottle for RICH aerogel dryboxes
> >
> > DATE:
> > Fri, 13 Nov 2020 13:42:22 +0100
> >
> > FROM:
> > Marco Mirazita <Marco.Mirazita at lnf.infn.it>
> >
> > TO:
> > Bob Miller <rmiller at jlab.org>
> >
> > CC:
> > Marco Contalbrigo <mcontalb at fe.infn.it>, marco mirazita
> > <marco.mirazita at lnf.infn.it>
> >
> > Dear Bob,
> > let me do a couple of consideration first.
> > We have about 40 additional tiles that will be soon shipped to jlab
> > and that should be safely stored.
> > Then, we still plan to have the second RICH module assembled in the
> > second half of 2021, but in the present covid situation I can't be
> too
> > optimistic that this plan could be actually completed. Therefore,
> we
> > must consider the possibility that we will need to have the aerogel
> > stored in the cabinets for very long time. In this scenario,
> purging
> > the broken dry boz with nitrogen doesn't seem to me really
> practical.
> > Repairing the broken one (which, from Tyler's picture look to me
> the
> > INFN one, with european power unit) could also not be the best,
> > because most likely we will need additional space for the upcoming
> > tiles. in the past we borrowed some free space from the large
> cabinet
> > in the EEL-124, but I heard from Tyler that also this cabinet is
> not
> > working.
> > So, my suggestion would be to buy a new cabinet, with double
> capacity
> > then the broken one, if possible.
> > Alternatively, I would consider to repair the large cabinet rather
> > then the small one.
> > Best regards,
> > Marco
> >
> > Il 2020-11-12 17:07 Bob Miller ha scritto:
> >
> >> Hi Marco,
> >>
> >> Tyler reports that one of the RICH aerogel storage dryboxes failed
> >> last week.
> >>
> >> Do you want to purge the box with N2 as suggested below, or have
> >> the
> >> storage box repaired or replaced?
> >>
> >> Regards,
> >>
> >> Bob
> >>
> >> -------- Forwarded Message --------
> >>
> >> SUBJECT:
> >> N2 bottle for RICH aerogel dryboxes
> >>
> >> DATE:
> >> Thu, 12 Nov 2020 09:37:01 -0500
> >>
> >> FROM:
> >> Tyler Lemon <tlemon at jlab.org>
> >>
> >> TO:
> >> Bob Miller <rmiller at jlab.org>
> >>
> >> CC:
> >> dsg-hallb_rich at jlab.org <dsg-hallb_rich at jlab.org>
> >>
> >> Hello Bob,
> >>
> >> Last week we had one of the RICH aerogel storage dryboxes fail.
> >> Fortunately, we've been able to relocate the aerogel in that
> drybox
> >> into the other two dryboxes. Since we're now storing aerogel at or
> >> even above full capacity of the two working dryboxes, if there's a
> >> problem with one of those, we would not have anywhere else to move
> >> the
> >> aerogel.
> >>
> >> Because of this, could you put together a system with a nitrogen
> >> bottle to be able to purge the dryboxes with nitrogen?
> >>
> >> The set up would be the same as we discussed back in October
> before
> >> the power outage in the EEL. I think all that would be needed is a
> >> nitrogen bottle with a regulator, relief valve, local pressure
> >> indication, rotameter, and the fittings to run a 1/4" gas line to
> >> the
> >> boxes. We already have a few feedthroughs that would be used to
> >> connect the gas line to the box.
> >>
> >> At some point we may want to add remote pressure monitoring to the
> >> set up (we don't have the sensors available right now but may in
> >> the
> >> future), so if needed, please include those in the pressure system
> >> design.
> >>
> >> If you have any questions or need any more information, let us
> >> know.
> >>
> >> Thanks,
> >> Tyler
> >
> >
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>
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