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 |