Comment tylan2 SNF 2008-11-18 14:55:47: Qual after tube change

[latta at snf.stanford.edu]

WET900  00:39:00  50 wafer spread
Average all wafers = 1009A  (expect about 1000A)
Within-a-wafer = 0.99%  (expect less than 5%)
Wafer-to-wafer = 1.68% (expect less than 5%)