Difference: Minutes2015-02-23 (r2 vs. r1)

Minutes of the forward endcap EMC meeting, 23nd of February 2015, SeeVogh, 15:15-16:10

Topics are not in the order of discussion, but by subject.


  • Basel: Werner
  • Bochum: Cathrina, Claudius, Fritz-Herbert, Malte, Matthias, Miriam, Patrick, Stephan, Tobias H., Tobias T., Tom
  • Bonn: Christoph
  • Groningen: Myroslav
  • Uppsala: -
  • GSI: Excused


  • Werner: Parts for VPTT preamplifier with higher gain ordered.

Cables to the outside

  • Werner: above 80% of HV are available. Will connect 8 APDs to one HV channel of ISEG-HV. No extra distribution foreseen.
  • Christoph: Need to know length of cables by April. Delivery in July latest. No multicore coax HV cable known.
  • Fritz-Herbert: Will ask Lars which type of alternative cable he has in mind.
  • Christoph and F.-H. will attend mechanics workshop in April.


  • Myroslav: Prototype crates fixed in 2nd half of April. Will optimize crate size.
  • Mockup test in Bochum with dummy PCB
  • Myroslav will contact Pawel concerning backplate PCB design (2 cables with 16 ch. for each ADC).
  • High and low rate channels will be connected to same ADCs. Signal cables length to be defined in May with Mockup crate.
  • Crate mechanics may be built at Bonn workshop.


  • Christoph: Which cables were irradiated?
  • Need student (in Bochum) to investigate mounting sequence of alveoli. Myroslav/Rick may help to start. Mounting tools to be produced afterwards.
  • Next meeting in one week.

-- FritzHerbertHeinsius - 23 Feb 2015

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