Endcap Muons

US CMS Collaboration Meeting, UC Riverside, May 19, 2001 1

Endcap MuonsEndcap MuonsEndcap MuonsEndcap Muons

John Layter

US CMS Collaboration Meeting

May 19, 2001


OutlineOutlineOutlineOutline

• Muon System Overview

• CSC Production

• FAST Sites

• Electronics Progress

• Integration and Installation

• CPA, ETC

• Plans for the next six months

• Summary


CMS Endcap Muon SystemCMS Endcap Muon SystemCMS Endcap Muon SystemCMS Endcap Muon System

360 CSCs, not counting ME1/1 and ME4•144 Large CSCs (3.4x1.5 m2):72 ME2/2 chambers72 ME3/2 chambers•Small CSCs (1.8x1.1 m2):72 ME1/2 chambers 72 ME1/3 chambers•20o CSCs (1.9x1.5 m2):36 ME2/1 chambers36 ME3/1 chambers

•Frontend Electronics:•170K Cathode channels 140K Anode channels

•Trigger&DAQ (on-chamber part) •Alignment&Services


Endcap Muon SystemEndcap Muon SystemEndcap Muon SystemEndcap Muon System


EMU - Yearly BCWSEMU - Yearly BCWSEMU - Yearly BCWSEMU - Yearly BCWS

FY01 is the second largest year of EMU funding:

• Production of chambers at Fermilab at nominal rate

• Purchasing of significant part of FE electronics

• Finalization of integration and installation design EMU BCWS by Fiscal Year

0

1,000,000

2,000,000

3,000,000

4,000,000

5,000,000

6,000,000

7,000,000

8,000,000

9,000,000

FY96 FY97 FY98 FY99 FY00 FY01 FY02 FY03 FY04 FY05


EMU Chamber StatusEMU Chamber StatusEMU Chamber StatusEMU Chamber Status

Fermilab Site (Panels for 410 CSCs; Assembly of 148 Large CSCs):

• Panel production since 5/99; 52% of chambers done; on schedule

• CSC assembly since 6/00; 32/148 large CSCs done; ~2 wks late

UF and UC Sites (Final Assembly and System Tests of Large CSCs)

• First 5 CSCs arrived at UC and UF; long term HV test will start

• Begin mounting and testing electronics 9/01, ~3 mo. late

• Delivery of on-chamber electronics is on critical path

PNPI Site (114 smaller CSCs)

• Critical tooling commissioned; 2 chambers assembled

• PRR—June 7-8; start production in August

IHEP Site (148 smaller CSCs)

• Critical tooling arrived, being commissioned, begin assembly

• PRR—July 30-31; start production in September


Week From To Total Total Total Total Total TotalME234/2 ME1/2 ME2/1 ME1/3 ME3/1 ME4/1

October 10/1/99 10/31/99 - - - - - - November 11/1/99 11/30/99 - - - - - - December 12/1/99 12/31/99 - - - - - - January 1/1/00 1/31/00 - 1 - - - - February 2/1/00 2/28/00 - 1 - - - - March 3/1/00 3/31/00 1 - - - - - April 4/1/00 4/30/00 1 - - - - - May 5/1/00 5/31/00 - - - - - - June 6/1/00 6/30/00 2 - - - 1 - July 7/1/00 7/31/00 1 - - - - - August 8/1/00 8/31/00 2 - - - - - September 9/1/00 9/30/00 2 - - - - -

FY00 Summary 9 2 - - 1 - Grand Total 9 2 - - 1 - October 10/1/00 10/31/00 3 - - - - - November 11/1/00 11/30/00 3 - - 1 - - December 12/1/00 12/31/00 3 - - - - - January 1/1/01 1/31/01 4 - - - - - February 2/1/01 2/28/01 4 - - - - - March 3/1/01 3/31/01 4 - - - - - April 4/1/01 4/30/01 - - - - - - May 5/1/01 5/31/01 - - - - - - June 6/1/01 6/30/01 - - - - - - July 7/1/01 7/31/01 - - - - - - August 8/1/01 8/31/01 - - - - - - September 9/1/01 9/30/01 - - - - - -

FY01 Summary 21 - - 1 - - Grand Total 30 2 - 1 1 - October 10/1/01 10/31/01 - - - - - - November 11/1/01 11/30/01 - - - - - - December 12/1/01 12/31/01 - - - - - - January 1/1/02 1/31/02 - - - - - - February 2/1/02 2/28/02 - - - - - - March 3/1/02 3/31/02 - - - - - - April 4/1/02 4/30/02 - - - - - - May 5/1/02 5/31/02 - - - - - - June 6/1/02 6/30/02 - - - - - - July 7/1/02 7/31/02 - - - - - - August 8/1/02 8/31/02 - - - - - - September 9/1/02 9/30/02 - - - - - -

FY02 Summary - - - - - - Grand Total 30 2 - 1 1 - October 10/1/02 10/7/02 - - - - - - November 11/1/02 10/14/02 - - - - - - December 12/1/02 10/21/02 - - - - - - January 1/1/03 10/28/02 - - - - - - February 2/1/03 11/4/02 - - - - - - March 3/1/03 11/11/02 - - - - - - April 4/1/03 11/18/02 - - - - - - May 5/1/03 11/25/02 - - - - - - June 6/1/03 12/2/02 - - - - - - July 7/1/03 12/9/02 - - - - - - August 8/1/03 12/16/02 - - - - - - September 9/1/03 12/23/02 - - - - - -

FY03 Summary - - - - - - Grand Total 30 2 - 1 1 -

FNAL Factory Status - Chamber assembly at MP9

• 32 large CSCs assembled by May 2001

• > 20% complete

• Production ~ at nominal rate

• ~ On schedule

CSC Production at MP9(ME234/2)

-40

0

40

80

120

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43

Month in productionN

um

be

r o

f C

ha

mb

ers

Shortage

DONE

Goal = 148 Chambers

FY00 FY01 FY02 FY03


Chamber AssemblyChamber AssemblyChamber AssemblyChamber AssemblyGluing Station

(anode bars, gap bars are glued to panels)Winding Station

(wires are wound directly on panels)Soldering Station

(automated soldering of wires)

Wire Tension/Spacing Station(tension and spacing of wires are checked)

Ionized Air Knife Station(dust is removed from wires and panels)

Assembly Station(panels are stacked to make chamber)


CSCs at UC FAST SiteCSCs at UC FAST SiteCSCs at UC FAST SiteCSCs at UC FAST Site


CSCs at UC FAST SiteCSCs at UC FAST SiteCSCs at UC FAST SiteCSCs at UC FAST Site


CSC Production at PNPICSC Production at PNPICSC Production at PNPICSC Production at PNPI

PreproductionPrototype (P3) assembled at PNPI


CSC production at IHEPCSC production at IHEPCSC production at IHEPCSC production at IHEP

Critical tooling received

Wire Tension measurement machine


Functions of ElectronicsFunctions of ElectronicsFunctions of ElectronicsFunctions of Electronics

Acquire precise muon data for offline analysis

• Cathode strips: precise azimuthal position (in bending plane) in each layer by interpolation of induced strip charges.

• Anode wires: precise timing and coarse radial position.

Generate primitives for Level 1 trigger• Identify Local Charged Track (LCT) segments

using cathode and anode signals.


Electronics System LayoutElectronics System LayoutElectronics System LayoutElectronics System Layout



Radiation Tolerance TestsRadiation Tolerance TestsRadiation Tolerance TestsRadiation Tolerance Tests

Measure Single Event Upset (SEU) and Total Ionization Dosage (TID) effects with 63 MeV proton beam at UC Davis.

Measure effects due to Displacement damage of bipolar and biCMOS with 1MeV neutrons at OSU.

Results:• Negligible degradation of analog performance due to

TID (>10kRad) or displacement (2x1012 cm-2 neutrons).

• No latch-ups observed up to p fluence of 2x1012 cm-2.

• SEUs in FPGAs observed and cross sections measured. All SEUs recoverable by reloading FPGAs. SEU rate at peak LHC luminosity manageable for CFEB, but higher for ALCT.


On-chamber Electronics IOn-chamber Electronics I On-chamber Electronics IOn-chamber Electronics I

Three out of four on-chamber boards designed and tested:

• Cathode Front End Board (CFEB)

• Anode Front End Board (AFEB)

• Low Voltage Distribution Board (LVDB)

Most of the components for these boards (excluding rad hard LV-regulators) procured in quantities sufficient to start production

Production costs at or below estimates


On-chamber Electronics IIOn-chamber Electronics II On-chamber Electronics IIOn-chamber Electronics II

LV-regulators (CERN design, standard for LHC experiments) are not available. Will define the schedule of production of CFEB and LVDB. On critical path

ALCT being redesigned using Xilinx FPGA (faster reloading) to deal with SEU problem. Preproduction boards to be delivered by September 2001. On critical path


Status of On-chamber Status of On-chamber BoardsBoards

Status of On-chamber Status of On-chamber BoardsBoards


Off-chamber ElectronicsOff-chamber Electronics Off-chamber ElectronicsOff-chamber Electronics

Progress made on next round of prototype boards and on VME custom backplane.

Updated versions of the prototype boards will be delivered to the FAST sites during this summer.

These will be used for tests of mass-produced on-chamber electronics assembled with chambers.


Integration & InstallationIntegration & InstallationIntegration & InstallationIntegration & Installation

Infrastructure:• Walkways

• Piping, cooling, cabling

• Chamber mounting

Installation:• Fixture

• Strategy

• Schedule





Mounting DetailMounting DetailMounting DetailMounting Detail


Chamber MountsChamber MountsChamber MountsChamber Mounts


Mounting PrecisionMounting PrecisionMounting PrecisionMounting Precision


Integration and installation designIntegration and installation design

• EMU integration design advanced (mechanical, gas, cooling, power)

• Installation procedures being defined

• Installation fixture fully designed and built


CSC installation fixtureCSC installation fixtureCSC installation fixtureCSC installation fixture

Counterweight movement keeps balance w/ or w/o chamber Chamber can rotate at any angle

Counterweight



Chamber Production and Chamber Production and Installation Schedule (V31)Installation Schedule (V31)Chamber Production and Chamber Production and

Installation Schedule (V31)Installation Schedule (V31)

• CMS Schedule V31: Installation of all CSCs on the surface at SX5, beginning in 2002.

• Very tight, advanced by ~1 year compared to V30. Pressure on production and installation rate.


EMU Critical Path Analysis - IEMU Critical Path Analysis - IEMU Critical Path Analysis - IEMU Critical Path Analysis - I

FY01: Delivery of on-chamber electronics is on the critical path:

• ALCT Board redesign and start of production

• Rad Hard Voltage regulators: CFEB, LVDB production

FY02: CSC assembly at FAST sites and installation at CERN is on the critical path


EMU Critical Path Analysis - IIEMU Critical Path Analysis - IIEMU Critical Path Analysis - IIEMU Critical Path Analysis - II

FY03: CSC Installation (station ME3) is on the critical path:

• short installation window (two shifts necessary)

FY04: CSC Installation (station ME1) is on the critical path:

• RPCs must be installed before CSCs• HE, EE, SE, ME1/1 cables should be installed

before CSCs• Short installation windows (two shifts)

Available Slack analysis:~25-30 working days in 2002. Very tight in 2003 –2004. Need two shifts for production at IHEP and ME1/2,3

installation


EMU – Estimate to CompleteEMU – Estimate to CompleteEMU – Estimate to CompleteEMU – Estimate to Complete

EMU - ETC 18.9 AYM$

EDIA (k$)

M&S (k$)

Mfg Labor (k$)

EMU Estimate to Complete: 18.9 Actual Year M$ Dominated by M&S (mostly electronics)


Plans for the Next 6 MonthsPlans for the Next 6 MonthsPlans for the Next 6 MonthsPlans for the Next 6 Months

• Continue CSC production at Fermilab.

• Start production at PNPI and IHEP.

• Continue FE electronics production.

• Start electronics assembly and begin chamber tests at FAST sites.

• Complete integration drawings for all chamber types.

• Begin preparations for receiving and installing chambers at CERN.


SummarySummarySummarySummary

• Nominal rate of chamber production at FNAL achieved. Chamber production on schedule.

• FE electronics production started; first cost experience positive.

• LV-regulators and trigger boards on the critical path; defines beginning of assembly at FAST sites.

• Endcap infrastructure designed; installation fixture exists.

• Adequate base program support is critical to maintain the schedule.

Documents

Endcap Muons