Minutes of the January 9
Tracker Engineering Meeting
Attendees: Brez, Menon, Fransen, Borden, Johnson,
Nordby, Venator, Rich, Martin, Gawehn, Bloom
INFN (Sandro) sent more
complete drawings to describe an alternate approach for this Interface and an
alignment tool. He and Nanda also
reviewed concerns at INFN about how to locate the towers accurately enough as they
are integrated, and offered some concepts for integration of the towers.
I&T (Elliott), as well
as Mechanical Integration (Martin N.), believe that there are major risks from
any approach that involves gluing inserts into the Grid. The primary concerns stem from the
difficulty of removing epoxy from any hole in the Grid without damaging the
Grid, and to the difficulty of controlling contamination during such a process.
Between now and the next
Interface design meeting (14 Jan, 8 am PST), Martin Nordby and others will
review how the concepts and concerns discussed today should affect the
"dual cone" Interface Design.
Robert Johnson and Dave Rich will meet with INFN next week to go over
both design approaches and the location concerns face-to-face.