Inventory of tile-bases that have already had a sealing attempt (Last Updated 8/13/18)

Tile name Tile 28 Tile 27 Tile 26 Tile 25 Tile 24 Tile 23 Tile 22 Tile 21 Tile 20 Tile 19
Base Type Ceramic Ceramic Ceramic Ceramic Ceramic Ceramic Glass Ceramic Glass Ceramic
Base vendor* C F A F F I I I
Metalization vendor* C C A C A C C C
Metalization type 200NiCr, 300Cu 200NiCr, 300Cu 200NiCr, 200Cu 200NiCr, 200Cu 200NiCr, 200Cu 200NiCr, 200Cu 200NiCr, 200Cu 200NiCr, 200Cu 200NiCr, 200Cu 200NiCr, 200Cu
Date of sealing trial 8/11/18 6/11/18 5/26/18 4/25/18 3/6/18 2/14/18 12/8/17 11/16/17 11/3/17 10/13/17
Sealing chamber Margherita 2 Margherita 2 Margherita 2 Margherita 2 Margherita 2 Margherita 2 Margherita 1 Margherita 2 Margherita 1 Margherita 2
Tube max leak rate 2e-5 <1e-9 <1e-6 <7e-9 <1e-12 1e-4 0 unk 0 4e-9
Pin max leak rate 0.1 <1e-9 1e-4 <6e-9 <1e-12 1e-4 0 unk 0 4e-9
Seal max leak rate 4.5e-2 1e-3 5e-5 4e-4 1e-2 4e-6 1e-6 5e-7 gross 9e-4
Approx. max seal length with <5e-9 Torr L/s helium 0 inches (checked two full sides, other two uncheckable) 5 inches
Location Testing on granite flat Graveyard drawers PRC150 Graveyard drawers PRC150 Graveyard drawers PRC150 Graveyard drawers PRC150 Graveyard drawers PRC150 Graveyard drawers PRC150 Graveyard drawers PRC150 Graveyard drawers PRC150 With Joe Gregar
Notes First tile with buttons sitting above the sidewall and 20lbs per spring swageloks leaked initially after seal trial "resealed" after taking window off and acid etching extra 3 mil shim Tilebase broken Still has MCPs, unopened Still has MCPs, unopened Anode broken, sidewall broken in sealing