Minutes-1-9-2014

January 9, 2014 FDC meeting

Agenda

1. Installation [1],[2],[3],[4] (all)
2. Engineering (Bill)
3. Electronics (Chris, Nick)
4. Mini-DAQ [5] (Beni)
5. Other

Minutes

Participants: Eugene, Fernando, Dave, Nick, Chris, Simon, Bill, Beni, and Lubomir.

Installation

- One quadrant (top, left looking downstream) has been completely cabled at the detector side (see attached pictures), main work done by Mike Klopf (FEL) with the help of Shukui Zhan (FEL) and Lubomir. Now Nick, Robert (FEL) and Shukui are working on the connections at the electronics side. As of today Casey and Tina started cabling the right top side. Cabling procedure: starting with first package per quadrant, each 11 cables are grouped, total of three groups naturally following the pre-amp positions, and bundled together starting at the end of the mesh. In total there are 12 bundles that are then placed on the top cable tray and then the end is re-bundled according to the rack/crate positions.

- In between, while the cables were on the floor, Anatoly tested all the cables at the electronics end with a scope using the translator board which allows to test only the first 8 and the last 8 channels from the 24 in the connector. There were four bad channels (small signals) in packages 3 and 4, most likely conductive tape issues. There's one card with all the channels showing a long shoulder in the signal, we suspect the pre-amp.