Minutes of the Forward Endcap EMC Vibe/eZuce meeting, 9th of August 2021, 14:00-14:45
Submodule Logistics:
Need to bring broken submodules accidently delivered to Jülich back to Bochum:
Fahrdienst of Bochum University expected to do the job
Currently out of operation because of vacation period
With the modules back in Bochum we will be able to check whether damages (swapping of APDs and/or HV etc.) are as expected by Bonn measurements
(Almost) all 16-unit VPTT submodules now glued and ready to go to Jülich, glueing of 8-unit submodules in progress
SADCs:
SADCs are available and can be sent to Bochum, backplane and power supply modules need to be finished, however:
For the time being power supplies will be manufactured as the design currenty is
However, it is still planned to have a higher efficient version later on
Scary: No FPGAs pratically available anymore (at least in due time, latencies of half a year, a year or even higher...)
No problem for already finished FWEC SADCs but for the corresponding crate controllers and power supplies (need to switch to manual operation)
Work on crate controllers succeeding: JTAC communication via optical fibres to controllers, SADCs
Backplanes: All parts for 3 15- and 3 6-SADCs crates available, waiting for PCBs (mid August/next week)
Same applies for power supply PCBs
Sven prefers to get the SADCs now instead of waiting for a combined shipping with finished and tested backplane and power supply PCBs
Misc:
Christoph/Vinee will come to Bochum for a last check on cabling paths/lengths
Quote from ISEG for recalibration of HV power supplies: ~16000 Euros (plus shipping) (this already includes a 40% discount due to the number of channels we have to get recalibrated)
Irradiated test seal for front lid back from Strahlenzentrum Gießen: looks and feels good!