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FMS Replacement Boards Outline
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41 more bases needed
-8 ready for final gluing/testing here
-8 broken bases from BNL?
-16 resistive bases (radius larger than cell)
-Assuming that we can get on the order of 5 of the FMS done relatively quickly
-12 more bases if we use the larger resistive bases
-28 more otherwise
Timescale
-January 24: install all active bases before longitudinal run
-Febuary 28: all bases need to be produced
Cables
-Signal wires should be easy to source
-HV wires
-By using extras and taking from old bases should have on order of 10 here
-minimum voltage rating: 5 kV, looking for similar size as old cables
-Other specifications?
-Amount to order? (25?)
-Lemo/SHV connectors?
Production Time
-2 weeks to produce boards (expedited options? (1 week))
-Amount to order? (40?)
-30 minutes to remove a board from the pins
-? to reconnect them all and solder capacitors/ tiny resistors
-20 minutes to make the other soldering necessary
-3 days for coating/glueing/testing (can do all 30 boards in one sitting)
Proposed Plan
-Order enough boards/wires to be able to finish without large resistive bases
-Try to have 12 new bases by Jan 24th for longitudinal run
-By beginning of transverse be able to hopefully replace all the large resistive bases
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