MDC FEE-Upgrade Meeting

HADES upper counting house (GSI)

HADES upper counting house


Christian Müntz (Goethe-Universität Frankfurt (UF-IKF)), Christian Wendisch (GSI, Darmstadt)

Local meeting to prepare Collaboration Meeting's contribution by CM

  • Christian Müntz
  • Christian Wendisch
  • Erwin Schwab
  • Jan Michel
  • Jerzy Pietraszko
  • Joachim Stroth
  • Michael Traxler
  • Michael Wiebusch
  • Oleg Fateev
  • Vladimir Ladygin

(very brief, details: refer to material added)

participants: ES, MT, MW, JP, CW, JM, CM

Report CM & discussion:

  • check w/ PANDA/Krakov on PT full production, due early 2020! -> CM during collab meeting
  • input stage options, triggered by discussion  on noise =f (wire length):
  • ASD8: U-div 200(serial)/500(to ground) Ohm, AC coupled to ASD8, Z = 100Ohm
  • PT-1a: no serial/1MOhm to ground, Z=50Ohm (present boards)
  • PT-1b: like 1a, add serial R (250Ohm), replace R 0->250Ohm)
  • PT-2: instead of serial R: transformator to galv. decouple, 2 different grounds (chamber/power supply), dedicated boards prepared, check tail and amplituide-losses...
  • MW reports on his SIM package, which allows to systematically study those options to prepare measurments, see talk
  • "observables" to optimize: delta-t (cosmics/beam), S/N, noise: understand R-Noise compared to el. mgn pickup (can be suppressed by soike rejection, threshold, dep. on rate)
  • dE/dx: relevant for PID  & walk correction!
  • current version-2 main board/DB and "OEP" boards: = baseline, everybody was happy with this version!
  • MichaelT will have a look to the current design (not yet routed), w/o "warrenty"
  • LV/Hub(if needed): JM/CM will explore options at IKF electronics lab
  • SFP options: needs dedicated testboard, to check error vulnerability, as function of:
    max. length of opt. cables. , temperature, data rate, placing components/functionality tests: GSI, TRB5sc design: JM, who conducts tests? project is not time critical (component can be changed late in the deign), see alos Jan's contribution during the last meeting
  • LV: 3.3./1.1V (both 2A) per MB, new (old) 6.5(5)/8.8(7.5)W, to be monitored!
There are minutes attached to this event. Show them.
    • 10:00 10:45
      Status & Discussion 45m
      - Introduction (CM): -> Status Chip -> Status full system test -> Status boards - Discussion (All) -> Main board layout -> Input stage -> To Do's w.r.t full system test, preparation COSY test beam in Nov
      Status (CM)