Agenda

Attendance

Jennifer F., David A., Jessie B., Devi A., Sudip B., Ryan B., Larry B., KK, Justin G., Jim F., Dustin M., Chandika A.

(Larry) FEAs run for main structure support with 5 supports (not hexapod) grouted to floor (some vertical, some at an angle). Now also has FEA result for whole detector put together: all detectors & support structure modeled for displacement and stresses; some model input issues, but looks good. Stresses look very low.
(Larry) Need to look at shear loads on pads on floor, so can decide how to ground/Hilti-tie to floor.
(Larry) Next: rotation system for main detectors.
(Jim) Has been having discussions with Robin about commercial roll-around "personnel support systems" for detector access for all detectors (ShowerMax, main detector, pion, GEMs, etc...). Expect overhead crane in Hall A will be fixed before our installation.
(Ryan) Added a few things to pion donut support. Added pads to thicken connection points of fins to beam pipe; will use Si/bronze fasteners. Thickness of fins still at 1/2".
(Ryan) Need to get updates from Wouter/David to dimensions of slots in pion donut. Also, we should start on the pion detector mounting concept soon.