[Dsg-rich] aerogel lists

Marco Mirazita Marco.Mirazita at lnf.infn.it
Mon Apr 8 09:55:01 EDT 2019


Hi Tyler,
In the photo of your inspection of August 2018 the directory labeled 
431F15 should be 434F15.
I looked back at the list of tiles delivered in all the shipments of 
2018 and actually I didn't find this 430f0.
It was however in my final list, which, at this point, should be most 
likely a mistake.
Thank you
Marco




Il 2019-04-08 15:32 Tyler Lemon ha scritto:
> Hi Marco,
> 
>  I looked over the logs I could find from the inspection of the tiles
> when they arrived at JLab and did not find tile 430f0.
> 
>  The photos from the 15 tiles received in August 2018 are at
> https://userweb.jlab.org/~tlemon/RICH/Aerogel_received_2018-08-30/
> [1].
> 
>  Could 430f0 have been mislabeled as something else?
> 
>  Best regards,
>  Tyler
> 
> -------------------------
> 
> FROM: Marco Mirazita <Marco.Mirazita at lnf.infn.it>
>  SENT: Monday, April 8, 2019 7:29 AM
>  TO: Tyler Lemon
>  CC: dsg-rich
>  SUBJECT: Re: aerogel lists
> 
> Hello Tyler,
>  the three tiles 396 and 391 are old tiles not part of the RICH
>  production, we shipped them to jlab just in case we didn't get all we
> 
>  need on time.
> 
>  The tile 432f6 appeared at some time in the possible candidate for
>  purchase, but, according to my logbook, was not purchased. There
> could
>  have been a mistake in the shipment and we received it instead of the
> 
>  436f6.
>  I should check with the producers.
> 
>  The missing tile 430f0 is strange. Could you please check if you have
> 
>  any log of the inspection at arrival? It should have been shipped in
>  August 2018.
> 
>  Thank you,
>  Marco
> 
>  Il 2019-03-27 20:47 Tyler Lemon ha scritto:
>  > Hello Marco,
>  >
>  > Attached is a table listing the aerogel tiles from your three
>  > documents and whether they can be accounted for. All tiles are
> located
>  > in the dry-boxes in the DSG small cleanroom gowning area.
>  >
>  > There were two tiles (op430f0 and op434f6) on your list that I
> could
>  > not find. I verified that there are no tiles in the large clean
> room's
>  > dry-box. These tiles are highlighted in yellow in the table.
>  >
>  > There were also five tiles we had in the dry-boxes that were not
>  > listed in the documents. These tiles are highlighted in orange at
> the
>  > bottom of the table.
>  >
>  > Of these five tiles, there was one unlabeled tile that had very,
> very
>  > large cracks and one corner broken (all other tiles are still of
> good
>  > quality and appearance, though). A picture of this tile is
> attached. I
>  > do not remember receiving an aerogel tile so badly damaged, but do
>  > recall that there were a few tiles that cracked during the test
>  > installation in RICH. Could this tile be one of those?
>  >
>  > Best regards,
>  >
>  > Tyler
>  >
>  > -------------------------
>  >
>  > FROM: Marco Mirazita <Marco.Mirazita at lnf.infn.it>
>  > SENT: Monday, March 25, 2019 1:59:07 PM
>  > TO: Tyler Lemon
>  > SUBJECT: aerogel lists
>  >
>  > Hi Tyler,
>  > here is the lists of aerogel tiles for rich2:
>  >
>  > List2cm_rich2_A -> 2 cm thickness, squared
>  > List2cm_rich2_BCD -> 2 cm thickness, trapezoidal, triangular,
>  > pentagonal
>  > List3cm_rich2_A -> 3 cm thickness, squared
>  >
>  > The last list includes also the new 34 tiles we should receive soon
>  > (they are labeled INFN-3).
>  >
>  > Best regards,
>  > Marco
> 
> 
> Links:
> ------
> [1] https://userweb.jlab.org/~tlemon/RICH/Aerogel_received_2018-08-30/
> 
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