US CMS EMU FNAL

1
US CMS EMU - FNAL

• Agenda
• CERN CMS EMU Meeting Report Giorgio
• Activities Assignments Giorgio
• Lab 8 Production - Chamber Alignment Yuri
• Gluing Machine - Progress on Setup Oleg
• PNPI Positioning Device Adam

2
US CMS EMU - FNAL

• 8-99 9-99 Activities Assignments (Physicists)
• Start Chamber Production in November 99
• Oleg Prokofiev RD on RTV-Polyurethane Sealing
• Gluing Machine to Production Readiness
• Panels Travelers
• Adam/Pawel Bujak Setup of FNAL Tension Tester
• Setup of PNPI Tension Tester
• Setup of FNAL Capacitance/Resistance Monitor
• Yuri Pischalnikov Lab 8 Production Monitor
• RD on Authomatized Strip Position Meas.
• Yuri/Sergei Lusin RD on Strip Photogrammetry
• Giorgio Apollinari Winding Machine to Production
  Readiness

3
US CMS EMU - FNAL

• 9-99 Activities Assignments (Physicists)
• MP9 - Start Chamber Production in November 99
• Oleg Prokofiev Tooling Procedures Chamber
  Travelers P2 Modification
• Giorgio Apollinari Winding Machine Procedures /
  P2 Modification
• Yuri Pishialnikov Database specifications
• Lab 7 - P2 Integration
• Sergei Medved Setup of P2 DAQ
• Proper grounding setup (HV Faraday Cage,
  LV..)
• Y.Y.Wang/DAQ Expert Lab 7 activities
• Dave Eartly Alignment Readout Setup

4
US CMS EMU - FNAL

• (Quick) CERN EMU Meeting Report
• Chamber Performance/Issues
• Chamber worked
• 100 fC at 3600 Volts on Cathode (noise 2 fC),
  Anode efficiency plateau starts at 3400 Volts,
  chamber operational up to 4000 Volts in all
  segments except one (see below).
• 200 mm wire design OK.
• Good Gain uniformity in the small region
  measured with beam.
• Unknown Leak Rate.
• One Segment (4-3) sparking at 3.6 kV and GIF
  operational
• Lack of path to ground for cathode strips in the
  event of a disconnected cable.

5
US CMS EMU - FNAL

• Electronics/Integration Issues (related to FNAL
  Factory)
• Cathode/Anode Electronics
• Cathode Saturation problem solved. Baseline still
  shifting, but correctable by pedestal
  presampling.
• Cathode Electronics Grounding scheme
  unsatisfactory.
• Insufficient Protection for Anode/Cathode
  electronics.
• Segment 4-3 zapped 2 Cathode chips and few(?)
  Anode channels.
• LV/HV/Cables
• HV
• Vicor LV too noisy
• Cables not integrated properly

6
US CMS EMU - FNAL

• PLANS
• Integration at FNAL-Lab 7 in Oct-Nov 99 with P2
  from CERN
• Factory resources to Integration if needed
  (G.Mitselmakher)
• Single point connection scheme
• Faraday Cage around all elements (chamber,
  electronics, cables,..)
• Single point connection between Faraday Cage and
  chamber/electronics/ ground.
• S. Lusin in charge. Plan to meet on Wednesday
  after FNAL factory meeting with connections to
  UCLA (Y. Bonushkin) Ohio (TY Ling), UF (Andrey),
  and UW (Dick, Farshid, Ken, Phil).
• 130 230 FNAL Chamber Factory Meeting
• 230 330 Lab 7 Integration Meeting

7
US CMS EMU - FNAL

• Chamber Issues for Integration/Production
• P2 Modifications/Checks
• Check Leak rate at arrival.
• Open chamber and (try to) fix segment 4-3.
• Insulated Faraday Cage around the chamber.
• Modified Anode Protection Board.
• N. Bondar to complete tests by Oct. Only change
  in components value are expected.
• Provide resistive path to ground for Cathode
  Strips
• Conductive Paint (?)