Minutes of the Forward Endcap EMC SADC Crate Design Vibe/eZuce meeting, 4th of May 2020, 14:00-15:15

Presence:

• Bochum: Tom, Matthias, Claudius, Fritz-Herbert, Malte, Miriam, Tobias H., Tobias T., Sebastian, Thorsten
• Basel: -
• Bonn: Christoph, Johannes
• Groningen: -
• Uppsala: Pawel
• Giessen: Markus, Hans-Georg

Submodule Manufacturing:

• 500 (Basel estimate) - 800 (Bochum count estimate) preamps missing
• 300 uFL coax cabels still in Bonn, cut in half this is enough for 600 preamps (incl. spares this is closer to the Basel estimate of 500)
• Still no exchange of submodules between Bonn and Bochum possible (no business travel for the time being)

Bonn Test Stands:

• 'Right' test stand equipped with new EPICS control incl. HV boards
• 'Left' test station for annealing LED cabling and I2C traffic noise tests
• Johannes did several tests on I2C communication
• Concerning annealing LED cabling noise we should meet in Bonn as soon as regulation and situation allows

Data Concentrators:

• First data concentrator test PCB in production (estimated duration 3 months)

SADC Controller:

• Microsemi FPGA alternative:
  • Good results with data retrieval
  • External PLL needed (less power consumption on controlle board)
  • Response: 200 ps jitter
  • Not so well described as Xilinx FPGA (somewhat black box)

APD Screening:

• Ongoing at Strahlenzentrum Giessen
• New batches for screening will be sent to Bochum

Personnel:

• Markus Preston (Stockholm) finished his PhD thesis and will leave PANDA
• However, he fortunately will go to Uppsala U and will be available for information about his work done for PANDA (feature extraction etc.)