Minutes and Action Task List from Oct 2 2019 Electronics and Readout Integration Meeting
Attendees: Cindy, Anne, Linda, Ting, Steve, Dan and Francesco,
· From last meeting's action list:
- Linda posted the Minerva cable map to DUNE docDB 16085
- We still want to hear the solution/walkaround of Linux update's impact on RS232 communication
· Ting reported that the questionnaires on rack building were sent to subsystem experts.
- So far there is no direct reply.
- But there is very positive response from Bern group
· Linda's presentation on ORC reviews is posted in DUNE docDB 16355
- A three steps process SEDR->pORC->ORC was developed help subsystem passing Fermilab safety review
- The SEDR is needed before per-production of your custom or modified electronics
- Commercial equipment with Nationally Recognized Testing Laboratory (NRTL) dose not need ORC or SEDR
- CE marked equipment is unfortunately not regarded as to meet OSHA standard thus need SEDR/ORC
- SEDR requires simplified electrical diagram, line diagrams of custom manufactured circuity and sample of equipment
- Linda will organized the review process
· We have a brief discuss on ways to carry the low-noise AC power to racks
- we decided to design new wire-way conduit on top west catwalk for the low-noise AC power Linda is to implement
- Need to redo the wire-way especially the ground isolation from unistrut post and metal grid floor
- We might also redesign the cable tray to make sure there is no floating grounding
- For non-TPC readout electronics (Minerva, cryogenic,DCS, DAQ etc.) we will use existing experimental power or building power
- We will keep the existing wire-way conduits under the west catwalk for this purpose
- For this purpose, we are proposing to put the Minerva racks under the catwalk
- couple of questions:
- Are there building power panels on the west catwalk?
- Do we need to separate the cryogenic equipment (pumps, cryo-coooler for example) from the Minerva electronics?
· Ting mentioned a discussion last week about building up a teststand for DAQ work
- A proposal is to use Minerva electronics as a starting test-stand for artDAQ development
- Would like to move the Minvera racks to downstream end ASAP to get it working
- Then adding XiLinX ArtyZ7 boards for charge readout and control
- The system will enable us to have a real piece of hardware for DAQ software development
· Linda also suggests we consider to use ArgonCube2x2 to improve grounding monitoring design
· Action task list:
- Steve to collection MINOS electrical documentation
- Ting to talk to Clarence and Howard about relocating Minerva racks
- Linda to think engineer and technician need to implement the low-noise transformer and wire-way conduit
- Ting to do doodle pool to find a meeting time slot in the morning
· We will meet again on Oct 16. We want to hear from Francesco on feedthrough design and also from Steve on MINOS electrical documentation.
There are minutes attached to this event.
Show them.