[Dsg-rich] aerogel lists

[Tyler Lemon]

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
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