[Dsg-rich] aerogel lists

[Marco Mirazita]

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