[dsg-hallb_rich] [EXTERNAL] Re: Fwd: N2 bottle for RICH aerogel dryboxes

Marco Mirazita Marco.Mirazita at lnf.infn.it
Thu Nov 19 09:37:27 EST 2020 

ok for me.
Marco


Il 2020-11-19 12:49 Tyler Lemon ha scritto:
> 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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>  > > dsg-hallb_rich at jlab.org
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