From john.flanagan@kek.jp Wed Nov 27 14:56:05 2013
Date: Thu, 28 Nov 2013 09:55:57 +0900
From: john.flanagan@kek.jp
To: johnf@post.kek.jp
Cc: Gary S. Varner <varner@phys.hawaii.edu>, John Flanagan <john.flanagan@kek.jp>, "Kenney, Christopher J." <kenney@slac.stanford.edu>, "Segal, Julie" <jsegal@slac.stanford.edu>, "Hasi, Jasmine" <jasmine.hasi@slac.stanford.edu>, jussi malin <jussi_malin@hotmail.com>
Subject: Minutes

John:
We seem to get most of the resolution improvement by 50 um, with only 
marginal improvements below that, and mostly at ultra-small beam sizes (
a few microns), which are beam sizes we are unlikely to see at SuperKEKB.

if we need smaller uncertainty contours (for low-current running, e.g.), 
then we are better off doubling up the detector width to increase photon 
flux.

--Decision: go to 50 um pitch, 128 pixels total.

Julie:
Spectrometer capacitance not balanced between pads now.
Could move pads to back to equalize, if needed.
If balanced, average would be ~2.7 pF.
--Decision:  do the overall balanced capacitance layout

Jasmine:
Wafers being sent out for implant