Minutes of the forward endcap EMC eZuce SRN meeting, 3rd of July 2017, 14:00-14:40

Presence:

• Basel: Werner
• Bochum: Cathrina, Claudius, Fritz-Herbert, Matthias, Malte, Miriam, Tobias T.,Tom
• Bonn: Christoph, Ulrike
• Groningen: Myroslav
• Stockholm: -
• Uppsala: Pawel
• Giessen: Hans
• GSI: -

Production Readiness Review:

• We will have the Production Readiness Review for the VPTT subunits on Friday 14th of this month:
  • The technical coordinators Lars and Tassos and external expert Herbert Loehner will do the review
  • The agenda comprises talks from Bochum and Bonn colleagues
  • Barrel colleagues Hans and Markus will also attend

SADCs:

• Backplane: design work not yet finished
• Cabling to backplane forseen similar as on SADC: Pitch-adapter plus connector (Christoph)
• Basically 1:1 feed throughs
• No sophisticatd cabling with respect to load distribution necessary, instead 1:1 cabling
• Power supplies will sit on separate PCBs, not directlt on backplate (distance form the DC/DC converters to signal lines)

SFPs:

• 2 SFPs irradiated at KVI with 6*10^10 protons per cm^2 fluence
• Standard SFPs fully satisfying for PANDA phase 1
• Versatile Links replacing standard SFPs after phase 1 (or from the beginning if possible)
• Versatile Link irradiation beam time at KVI in September

Subunits:

• Decided to buy Stycast 1266 cryo epoxy and test it for suitability (wrt to viscosity) for insert to alveole glueing

APD preamps:

• About 300 pieces currently under test in Basel
• Wait for a larger batch to ship to Bochum (no need to have it there now) -- ThomasHeld - 13 Jul 2017