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<div style="direction: ltr;">Hi Marco,</div>
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<div style="direction: ltr;">DSG has a regular status meeting at 11:00 on Mondays.
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<div style="direction: ltr;">Could this RICH meeting be at 10:00 so not to interfere with that meeting?</div>
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<div style="direction: ltr;">Thanks,</div>
<div style="direction: ltr;">Tyler<span id="ms-outlook-ios-cursor"></span></div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Marco Mirazita <Marco.Mirazita@lnf.infn.it><br>
<b>Sent:</b> Thursday, November 19, 2020 3:30:58 AM<br>
<b>To:</b> Tyler Lemon <tlemon@jlab.org><br>
<b>Cc:</b> dsg-hallb_rich@jlab.org <dsg-hallb_rich@jlab.org><br>
<b>Subject:</b> Re: [dsg-hallb_rich] [EXTERNAL] Re: Fwd: N2 bottle for RICH aerogel dryboxes</font>
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<div class="PlainText">Hi Tyler,<br>
for me Monday ta 11 is ok,<br>
Let's wait a confirmation also from the others, then I will set up a <br>
bluejeans.<br>
Thanks,<br>
Marco<br>
<br>
<br>
Il 2020-11-18 15:58 Tyler Lemon ha scritto:<br>
> Hi Marco,<br>
> <br>
> It's good to hear that the next RICH sector is still moving along.<br>
> <br>
> Thursday and Friday next week are holidays for Thanksgiving so we'd<br>
> be able to have the meeting any time next Monday, Tuesday, or<br>
> Wednesday except for<br>
> <br>
> Monday 11:00am - 1:00pm<br>
> <br>
> Tuesday 11:00am - 1:00pm<br>
> <br>
> Wednesday 12:00pm - 3:00pm<br>
> <br>
> Tyler<br>
> <br>
> -------------------------<br>
> <br>
> FROM: Marco Mirazita <Marco.Mirazita@lnf.infn.it><br>
> SENT: Tuesday, November 17, 2020 5:38 AM<br>
> TO: Tyler Lemon <tlemon@jlab.org><br>
> CC: dsg-hallb_rich@jlab.org <dsg-hallb_rich@jlab.org><br>
> SUBJECT: Re: [dsg-hallb_rich] [EXTERNAL] Re: Fwd: N2 bottle for RICH<br>
> aerogel dryboxes<br>
> <br>
> Hi Tyler,<br>
> despite the problems due to the covid emergency, the construction of<br>
> the<br>
> second RICH module is progressing and we are getting close to several<br>
> <br>
> shipments of material to jlab, not only the aerogel mentioned by Bob.<br>
> Therefore I would like to have a meeting with you, the DSG and the<br>
> other<br>
> people involved in the RICH project to discuss how to plan the work<br>
> for<br>
> the next few months.<br>
> Would you be available for a meeting next week? If yes I will make a<br>
> doodle to fix the date and time.<br>
> Thanks,<br>
> Marco<br>
> <br>
> Il 2020-11-16 16:45 Tyler Lemon ha scritto:<br>
> > Hi Bob,<br>
> ><br>
> > Thank you for the information.<br>
> ><br>
> > Tyler<br>
> ><br>
> > -------------------------<br>
> ><br>
> > FROM: Bob Miller <rmiller@jlab.org><br>
> > SENT: Monday, November 16, 2020 10:43 AM<br>
> > TO: Tyler Lemon <tlemon@jlab.org><br>
> > SUBJECT: Fwd: [EXTERNAL] Re: Fwd: N2 bottle for RICH aerogel<br>
> dryboxes<br>
> ><br>
> ><br>
> > Hi Tyler,<br>
> ><br>
> > Please see Marco's response below. Based on his email, I will leave<br>
> > the repairs or purchase to you and I will not design an N2 system<br>
> at<br>
> > this time.<br>
> ><br>
> > Regards,<br>
> ><br>
> > Bob<br>
> ><br>
> > -------- Forwarded Message --------<br>
> ><br>
> > SUBJECT:<br>
> > [EXTERNAL] Re: Fwd: N2 bottle for RICH aerogel dryboxes<br>
> ><br>
> > DATE:<br>
> > Fri, 13 Nov 2020 13:42:22 +0100<br>
> ><br>
> > FROM:<br>
> > Marco Mirazita <Marco.Mirazita@lnf.infn.it><br>
> ><br>
> > TO:<br>
> > Bob Miller <rmiller@jlab.org><br>
> ><br>
> > CC:<br>
> > Marco Contalbrigo <mcontalb@fe.infn.it>, marco mirazita<br>
> > <marco.mirazita@lnf.infn.it><br>
> ><br>
> > Dear Bob,<br>
> > let me do a couple of consideration first.<br>
> > We have about 40 additional tiles that will be soon shipped to jlab<br>
> > and that should be safely stored.<br>
> > Then, we still plan to have the second RICH module assembled in the<br>
> > second half of 2021, but in the present covid situation I can't be<br>
> too<br>
> > optimistic that this plan could be actually completed. Therefore,<br>
> we<br>
> > must consider the possibility that we will need to have the aerogel<br>
> > stored in the cabinets for very long time. In this scenario,<br>
> purging<br>
> > the broken dry boz with nitrogen doesn't seem to me really<br>
> practical.<br>
> > Repairing the broken one (which, from Tyler's picture look to me<br>
> the<br>
> > INFN one, with european power unit) could also not be the best,<br>
> > because most likely we will need additional space for the upcoming<br>
> > tiles. in the past we borrowed some free space from the large<br>
> cabinet<br>
> > in the EEL-124, but I heard from Tyler that also this cabinet is<br>
> not<br>
> > working.<br>
> > So, my suggestion would be to buy a new cabinet, with double<br>
> capacity<br>
> > then the broken one, if possible.<br>
> > Alternatively, I would consider to repair the large cabinet rather<br>
> > then the small one.<br>
> > Best regards,<br>
> > Marco<br>
> ><br>
> > Il 2020-11-12 17:07 Bob Miller ha scritto:<br>
> ><br>
> >> Hi Marco,<br>
> >><br>
> >> Tyler reports that one of the RICH aerogel storage dryboxes failed<br>
> >> last week.<br>
> >><br>
> >> Do you want to purge the box with N2 as suggested below, or have<br>
> >> the<br>
> >> storage box repaired or replaced?<br>
> >><br>
> >> Regards,<br>
> >><br>
> >> Bob<br>
> >><br>
> >> -------- Forwarded Message --------<br>
> >><br>
> >> SUBJECT:<br>
> >> N2 bottle for RICH aerogel dryboxes<br>
> >><br>
> >> DATE:<br>
> >> Thu, 12 Nov 2020 09:37:01 -0500<br>
> >><br>
> >> FROM:<br>
> >> Tyler Lemon <tlemon@jlab.org><br>
> >><br>
> >> TO:<br>
> >> Bob Miller <rmiller@jlab.org><br>
> >><br>
> >> CC:<br>
> >> dsg-hallb_rich@jlab.org <dsg-hallb_rich@jlab.org><br>
> >><br>
> >> Hello Bob,<br>
> >><br>
> >> Last week we had one of the RICH aerogel storage dryboxes fail.<br>
> >> Fortunately, we've been able to relocate the aerogel in that<br>
> drybox<br>
> >> into the other two dryboxes. Since we're now storing aerogel at or<br>
> >> even above full capacity of the two working dryboxes, if there's a<br>
> >> problem with one of those, we would not have anywhere else to move<br>
> >> the<br>
> >> aerogel.<br>
> >><br>
> >> Because of this, could you put together a system with a nitrogen<br>
> >> bottle to be able to purge the dryboxes with nitrogen?<br>
> >><br>
> >> The set up would be the same as we discussed back in October<br>
> before<br>
> >> the power outage in the EEL. I think all that would be needed is a<br>
> >> nitrogen bottle with a regulator, relief valve, local pressure<br>
> >> indication, rotameter, and the fittings to run a 1/4" gas line to<br>
> >> the<br>
> >> boxes. We already have a few feedthroughs that would be used to<br>
> >> connect the gas line to the box.<br>
> >><br>
> >> At some point we may want to add remote pressure monitoring to the<br>
> >> set up (we don't have the sensors available right now but may in<br>
> >> the<br>
> >> future), so if needed, please include those in the pressure system<br>
> >> design.<br>
> >><br>
> >> If you have any questions or need any more information, let us<br>
> >> know.<br>
> >><br>
> >> Thanks,<br>
> >> Tyler<br>
> ><br>
> ><br>
> > _______________________________________________<br>
> > dsg-hallb_rich mailing list<br>
> > dsg-hallb_rich@jlab.org<br>
> > <a href="https://mailman.jlab.org/mailman/listinfo/dsg-hallb_rich">https://mailman.jlab.org/mailman/listinfo/dsg-hallb_rich</a> [1]<br>
> <br>
> <br>
> <br>
> Links:<br>
> ------<br>
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