MuTr Shielding & Grounding

Preliminary 10/6/99 (G. Hart)

Additions 1/4/01 (REM)

1. Title 2. Table of Contents3. Table of Contents (cont) 4. System Diagram5. Chassis 6. Digital section7. Calibration 8. Glink/Clink9. Definitions10. Signal Paths 11. LeCroy HV ground12. HV Dist. Card Schematic 13. HV Dist. Card Assembly 14. HV Dist. Box Assy 15. HV Cable plug assy16. HV Cable assy 17. LVHP Schematic18. LV Dist. Schematic 19. FEE Power Schematic20. Cable, LVHP - LVD 21. Cable, LVD - FEE22. Cable, FEE Pigtail 23. FEE Card Layers24. Cable, FEE Signals 25. Belden 12 AWG Cable26. Cathode PCB Schematic 27. Anode PCB Schematic28. Cathode PCB Comp Side 29. Cathode PCB Pad side

Table of Contents

30. Anode PCB Comp Side 31. Anode PCB, Pad side32. St. 2 Cathode End View 33. FG Jumper assy34. St. 2 Cathode Side View 35. St. 2 Anode Side View36. Cathode Card Side View 37. ARCnet receiver38. MAX1480 39.

Table of Contents (cont)

System Diagram

LeCreoy 1469P Card

PHENIX MUON TRACKER CHAMBERS

Ming’s version of the world

Calibration overview

Calibration detail

Chassis

LV +

LV -

AMUADCFPGA

ARCnet

+5 V

0 V

Digital section

from preamp

DCM GTM

Glink/CLink

Distributed grounds for octant (Stn 2)

ARCnet

HV

calib

G/C

chassis

chassis

chassis

chassis

15

15

15

15

12

12

8

5

LV

Distributed grounds for Station 2

chamber/CRAG/C

calib

ARCnetHV

… 8 times

LV

Frame Ground - refers to the chamber metal frames, cable shields, external ground planes of printed wiring boards (PCBs), crates and racks. Possible points (to be investigated) where this may be connected to BNL earth ground are the magnet frame, the Low Voltage High Power (LVHP) crate, and the racks containing the LV & HV power supplies, and the LeCroy high voltage power supply. SIGR-HV - derived from the chamber card “SIGnal Return - High Voltage”, this is the ground side of the chamber signals, and low and high voltage power.

definitions

Block diagram / Schematic of signal paths

LeCroy HVPS Ground Schematic

(This is an insulated box located on the chamber support structure)

High Voltage Distribution Box Schematic

HV Distribution Card

HV Distribution Box

HV Plug box

HV Coax Assy

LV High Power VME Supply (BNL-Steve Boose)

Low Voltage Distribution System Schematic

FEE Power Schematic

ITEM # QTY PART # MANUFACTURER DESCRIPTION

Cable; LVHP Supply to LV Distribution Box

ITEM # DESCRIPTIONQTY PART # MANUFACTURER

Cable; LV Distribution Card to FEE Crate Pigtail

ITEM # DESCRIPTION

PART #QTY MANUFACTURER

18.0 mm[0.7 inch]

5.1 mm[0.2 inch]

4.8

mm

[0.2

inch

]

11.3

mm

[0.4

inch

]

2 places

2 pl

aces

Cable, Pigtail from FEE Crate backplane

FEE Printed Wiring Cards layer structure

Backplane LayersControl Card

Layers

Cathode ReadoutCard (CROC)

Layers

Signal Cable: Chamber PCB to FEE Backplane

Schematic & Assy Drawing

of Signal Cable

Signal Cable: Chamber PCB to FEE Backplane

Power Cable, Shielded 12 AWG Pair

Cathode Chamber Card, Schematic

SIGR-HV

SIGR-HV

SIGR-HV

SIGR-HV

HV+

HV+

SIGR-HV

SIGR-HV

FG

Layer 3

HV+

Layer 4

Layer 1

Layer 2

Layer 5

Layer 6

PCB layup plan

SIGR-HV

SIGR-HV

Anode Chamber Card, Schematic

Cathode Chamber Card (Typical), component side

Note square pads to lower left of connectors, these are for the

connections to the frame.

Cathode Chamber Card (Typical), cathode pad side

Ne square pads to lower left of connectors, these are for the connections to the frame.

Anode Chamber Card (Typical), component side

Note square pads below connectors, these are for the connections to the frame.

Anode Chamber Card (Typical), anode pad side

Station 2 Cathode planes, end view

Jumper, Frame to chamber cards

Side view of Chamber, Anode cards

Side view of Chamber, Cathode cards

ARCnet receiver

max1480