CSC Muon Trigger — Annual Review Jay Hauser

CSC Muon Trigger - Annual Review Jay Hauser, with many slides from Darin Acosta and Stan Durkin Personnel: u u u Professors l Darin Acosta (Florida), Robert Cousins (UCLA), Jay Hauser (UCLA), Paul Padley (Rice), Jaybus Roberts (Rice) Postdocs l Sang-Joon Lee (Rice), Holger Stoeck (Florida), Slava Valouev (UCLA), Martin von der Mey (UCLA), Song Ming Wang (Florida), Yangheng Zheng (UCLA) Students l Alexei Drozdertski (Florida), Brian Mohr (UCLA), Jason Mumford (UCLA), Greg Pawloski (Rice), Bobby Scurlock (Florida), Engineers l JK Smith (UCLA), Alex Madorsky (Florida), Mike Matveev (Rice), Ted Nussbaum (Rice), Alex Tumanov (Rice - Software) Collaborating engineers (PNPI) l Victor Golovtsov, Valeri Iatsioura, Lev Uvarov Outline: u u u Status of Boards Test Beam 2003 Results Experience and Plans for Production Testing Plans for Integration and Slice Tests Schedule and Milestones CSC Muon Trigger CMS Annual Review September 16, 2003 1

Current Status of CSC Trigger Elements – Quick Summary n On-chamber u u n Peripheral-crate u u u n Comparator ASICs for Cathodes (CFEB cards) – DONE. ALCT Anode Trigger – almost done (~90%) TMB Trigger Motherboard – pre-production prototypes MPC Muon Port Card – 2 nd generation prototype CCB Clock & Control Board – 2 nd generation prototype Track Finder crate in counting house u u u SP 2002 Sector Processor – 2 nd generation prototype CSC Muon Sorter – 1 st generation prototype Backplane – 2 nd generation prototype CSC Muon Trigger CMS Annual Review September 16, 2003 2

CSC Muon Trigger Scheme EMU part: on-chamber nearing end of production, peripheral crate production > ESR in Nov. ‘ 03 Tri. DAS part: Second generation prototypes Muon Portcard (1) Trigger Motherboard (9) Clock Control Board Trigger Timing & Control Optical link DAQ Motherboard (9) DT D TD TD T CMT DT D M M M C P M MM M M C BB BB B B CB BB B O N T R O L L E R 1 of 5 Muon Sorter (1) 1 of 5 Sector Processor (12) CFEB CFEB CSC Track-Finder Crate (1) In underground counting room 3 -D Track-Finding and Measurement CSC Muon Trigger Peripheral Crate on iron disk (1 of 60) Cathode Front-end Board 1 of 2 LVDB ALCT 1 of 24 Anode LCT Board On detector Trigger Primitives CSC CMS Annual Review September 16, 2003 Anode Front-end Board 3

On-chamber CSC Trigger Electronics n Comparator ASICs – DONE. u u n Compare pulse heights from adjacent strips to find position of muon to ½-strip 15000 16 -channel ASICS on CFEB boards (OSU) ALCT Boards – nearly DONE. u u Finds tracks among anode hits, stores data for readout 468+spares boards of 3 types (288 -, 384 -, 672 -channel) CSC Muon Trigger CMS Annual Review September 16, 2003 4

CSC Peripheral Crates in UXC 55 Crate Controller D T D T D T CM T D T D C MMMMM C PMMM MMMMM O B BB B B B C B B B B N T R O L L E R DAQ Motherboard (DMB) TRIG Motherboard (TMB) Muon Port Card (MPC) Clock Control Board (CCB) CSC Muon Trigger CMS Annual Review September 16, 2003 5

Trigger Motherboard n Generates Cathode LCT and matches ALCT with CLCT n Prototyped 18 TMB 2001 with XCV 1000 E (15 for chamber testing). n 4 new TMB 2003 prototypes with “production engineering” and XC 2 V 4000. n Nov. ’ 03 ESR should lead into production cycle in ‘ 04. n 468 boards 9 U x 400 mm required for CSC trigger UCLA CFEB Input connectors Mezzanine board ALCT input connectors CSC Muon Trigger CMS Annual Review September 16, 2003 6

Clock and Control Board n n Common design for both Peripheral and Track-Finder crates 20 Boards exist Have been distributed and used for chamber testing 60+1 required for CMS operation Mezzanine card with PLD TTCrx Mezzanine Card Rice ECL inputs ECL outputs 9 U * 400 MM BOARD CSC Muon Trigger CMS Annual Review September 16, 2003 7

Muon Port Card n n n n Sorts up to 18 LCTs from 9 chambers and transmits best 3 to Track-Finder crate 6 Boards of second generation have been fabricated and assembled. Board has passed standalone tests, communication tests with TMB, and cosmic ray tests Successfully read data from 2 chambers and sorted correctly Tests with Track-Finder are continuing Tests in time-structured test beam are underway now (for second time this year) 60 required for CMS operation Optomodules (1. 6 Gbit/s) CSC Muon Trigger CMS Annual Review September 16, 2003 Rice TLK 2501 serializers Mezzanine card (same as TMB design) 8

1 st Prototype Track-Finder Tests Sector Processor (Florida) Sector Receiver Clock Control (UCLA) Board (Rice) SBS VME Interface Very successful, but overall CSC latency was too long Custom Channel. Link Backplane (Florida) New 2002 design improves latency, reduces # of crates from 6 to 1 Results included in Trigger TDR (2000) CSC Muon Trigger Muon Port Card (Rice) CMS Annual Review September 16, 2003 9

CSC Track-Finder Crate Muon Sorter SR SR SR / / / SP SP SP MS CCB Clock and Control Board SBS 620 Controller Second generation prototypes SR SR SR / / / SP SP SP Sector Receiver/ Processor From MPC (chamber 4) From MPC (chamber 3) From MPC (chamber 2) From MPC (chamber 1 B) From MPC (chamber 1 A) To DAQ Single Track-Finder Crate Design with 1. 6 Gbit/s optical links Custom 6 U GTLP backplane for interconnections CSC Muon Trigger CMS Annual Review September 16, 2003 10

SP 2002 (Main Board) n 12 Used in CMS System Receiver: Optical Transceivers Florida VME/ CCB FPGA • 16 x 1. 6 Gbit/s Links TLK 2501 Transceiver Data conversion: Phi Global LUT To/from custom GTLP backplane Eta Global LUT Phi Local LUT Merged 3 SR 2000 s Front FPGA CSC Muon Trigger CMS Annual Review September 16, 2003 11

SP Trigger Logic From SP 2000 to SP 2002 mezzanine card (5 manufactured) Florida Performs track-finding logic and PT assignment CSC Muon Trigger CMS Annual Review September 16, 2003 Xilinx Virtex-2 XC 2 V 4000 ~800 user I/O 12

Muon Sorter n n Sorts up to 36 muons from 12 SP’s and transmits best 4 to GMT Have 4 boards in hand, one stuffed (except for backplane interface) Sorter testing is in progress, will test with Track-Finder in the autumn Only 1 needed in CMS Rice MEZZANINE CARD (same as SP design) LVDS DRIVERS AND SCSI-3 CONNECTORS CSC Muon Trigger GTLP BACKPLANE INTERFACE CMS Annual Review September 16, 2003 13

CSC Test Beam Studies 2003 n First structured beam period May 23 -June 1 u u n Unstructured beam period June 13 -28 u n Trigger primitives tests were highly successful: l Reliable high-rate trigger and DAQ system l ALCT timing tests, CLCT and TMB studies l High-rate tests and HV, threshold, angle scans MPC-to-SP optical link data transfer unsuccessful (synch. problems) Improved low- and high-rate CLCT and TMB studies, angle scans Second structured beam period Sept. 17 -22 u u Patches to fix optical link data transfer from MPC to SP New readout shell program (fully OO software) CSC Muon Trigger CMS Annual Review September 16, 2003 14

2003 Time-structured Beam Test Setup n X 5 A Setup TTC crate Trigger primitives DAQ Data Peripheral Crate 2 DMB, 2 TMB 1 CCB, 1 MPC Track finder Crate TRIDAS FED crate 1 DDU PC beam S 1 CSC Muon Trigger S 3 S 2 CSC 2 CMS Annual Review September 16, 2003 15

Typical Muon Event Raw data includes 8 or 16 time bins history CSC Muon Trigger CMS Annual Review September 16, 2003 16

2003 Time-Structured Test Beam n n 48 bunches 25 ns bunch spacing bunch width 3 -5 ns n n 1. 2 ms Optimal timing found High efficiency (~98 -99%) achieved Peripheral crate system basically working as desired Small CLCT efficiency loss at high rates, almost no ALCT efficiency loss Scintillation Counters 23 ms 48 bunches SPS orbit period Structure repeats during 2. 6 s spill length CSC Muon Trigger CMS Annual Review September 16, 2003 ALCT 17

CSC Bunch ID From ALCT Timing n First, tune the ALCT data latching in 2 ns intervals (0 -32 ns) and maximize the single-BX fraction of events: n Then look at the BX distribution relative to BX from scintillator (L 1 A): n ALCT BX efficiency 98. 7% CSC Muon Trigger CMS Annual Review September 16, 2003 18

CLCT Positions n Key CLCT half strip from chamber 2 vs. 1: u u On fine scale “staircase” structure indicates good trigger position resolution (note that chamber 1 is vertically higher, thus the offset in position) CSC Muon Trigger CMS Annual Review September 16, 2003 19

CSC Trigger High Rate Tests Chamber #1 CLCT Rate (KHz) 2, 000 1, 500 1, 000 data consistent with dead-time = 225 ns 500 0 0 500 1, 000 1, 500 2, 000 2, 500 3, 000 Beam Intensity (KHz) Expected LCT rate at LHC < 25 KHz (ME 1/1) CSC Muon Trigger CMS Annual Review September 16, 2003 20

CSC Track Finder Test Sector Processor 2 CSCs u u u Successfully passed optical link loopback tests and MPC SP chain tests using 40 MHz crystal oscillator to drive system MPC SP optical link tests failed at the structured beam tests in May 2003 (link errors every few ms) Clock was derived from TTC system (mi vi vx rx) Combined clock jitter presumably too large to drive optical links PLL was not used to clean clock (i. e. QPLL was not available) CSC Muon Trigger CMS Annual Review September 16, 2003 21

2003 Unstructured Test Beam Results n Very high efficiencies achieved u n n Highest trigger efficiency of 99. 9% required low rate (few k. Hz) Improved DAQ throughput allowed readout up to 80 k full events per spill. Typical “run” is 1 or 2 spills. Improved scans taken: u u u Logic scope read out on most data HV scan Comparator threshold scan Pattern requirements scan Angle scans CSC Muon Trigger CMS Annual Review September 16, 2003 22

ALCT Production Testing - Example n n n ~510 Boards, ~200000 Channels Semi-automated procedures Using 3 test stations u u n n n 2 for testing 1 for fixing Crew of up to 14 students testing (3 FTE) Sign-off sheets to track testing failures Test before and after 2 -day burn-in 2 students trained for fixing 1 engineer for difficult cases 1 postdoc supervises it all CSC Muon Trigger CMS Annual Review September 16, 2003 23

Testing Other CSC Trigger Boards n TMBs (468+spares) testing (Emu): u u n MPCs (60+) production or in-situ CMS testing: u u u n Like MPC but with inputs from MPC, outputs to MS CCBs (60+): u n Inputs will be tested at full speed with FIFO on TMB Outputs will be tested at full speed with input FIFO of SP VME readout SPs (12+): u n Production testing with loop-back board tests all I/O (already built) In-situ CMS testing by pulsing analog levels on CFEBs, reading comparators; also recording digital outputs to MPC and DDU. Simple module function, tested on bench and by exercising peripheral and Track Finder crate functions MS (1+): u With only 1+spares, can be tested by hand as well as with input data from FIFOs on SP outputs CSC Muon Trigger CMS Annual Review September 16, 2003 24

Plans for Integration and Slice Tests n Test beam 2003 is the first full chain test from 2 CSC chambers to SP input n Sept. test beam cycle goals (see next slides): u u n n n Validate that correct trigger primitives are found and successfully received over optical links Record as much data as possible under various detector configurations for future track identification studies Will perform DT CSC TF interface tests the week following Sept. beam test Next (6/04) structured test beam cycle will test pre-production boards (CCB, MPC, SP, TTC+QPLL) 6/04 -3/05 Slice Test (on surface) u u n Really begins with next summer test beam 6/04 Use 2 full CSC peripheral crates, covering 2 stations x 60 degrees at SX 5 9/1/05 Commissioning begins in UX 5 u n Integration with CMS-wide systems important for Track Finder: Slow controls (downloading), database, connection to Global Muon Trigger, software framework, time synchronization studies 1/1/07 Commissioning ends at UX 5 CSC Muon Trigger CMS Annual Review September 16, 2003 25

Sector Processor Clock Patch LVDS Repeater Delivers Multiplied Clock to Front FPGAs to Drive TLK 2501 clock input VCXO and PLL added to clean synchronous clock Voltage Controlled Crystal Oscillator PLL Patch • Low jitter Output • Cleans Backplane clock to drive SP logic • x 2 Back. Plane Clock supplies reference to TLK 2501 CSC Muon Trigger CMS Annual Review September 16, 2003 26

SP Patch Results Conditions Patched CCB Clock, 100 m fibers Type of Test Time Errors SP SP loopback PRBS test 5 hours x 3 links 0 “ MPC SP PRBS test (within same TF crate) 24 hours x 3 links 0 TTCvx with 40. 0787 MHz XO Patch MPC SP PRBS test (within same TF crate) 32 hours x 3 links 0 MPC SP PRBS test (peripheral crate 14 hours x 3 links to TF crate) with L 1 A rate @ 100 k. Hz. 0 “ n Eagerly awaiting QPLL chips from CERN CSC Muon Trigger CMS Annual Review September 16, 2003 27

Preparation for Sept. 2003 Beam Test Scintillator Panels HV Supply CSCs Periph Crate MPC Cosmic ray test stand in Florida System brought to working order (everything now shipped to CERN) TTCvx CCB TTCvi TF Crate SP Dynatem TMB DDU DMB CSC Muon Trigger CCB SBS CMS Annual Review September 16, 2003 28

CSC Trigger FY 02 -05 L 2, 3 Milestones - I n Begin Proto. 2 u u u n u u u u u n Finish Final Design u u u CSC Muon Trigger Finish MPC Proto. 2 Test Finish SR/SP Proto. Test Finish Backplane Proto. 2 Test Finish CCC Proto. 3 Test Finish Sorter Proto. Test Finish MPC Final Design Finish SR/SP Final Design Finish Backplane Final Design Finish CCC Final Design Finish Sorter Final Design √ √ √ 9/30/02 1/30/03 2/28/03 8/19/02 3/31/03 √ √ (except PT memories, ordered) √ √ √ 2/28/04 4/30/03 9/30/03 1/30/04 2/28/04 √ but needs redesign 2/28/04 GMT integration? 3/31/04 Finish Proto. 2 Test 10/1/01 5/14/01 9/30/03 Finish MPC Proto. 2 Finish SR/SP Proto. Finish Backplane Proto. 2 Finish CCC Proto. 3 Finish Sorter Proto. √ 6/24/03 Begin MPC Proto. 2 Begin SR/SP Proto. Begin Backplane Proto. 2 Begin CCC Proto. 3 Begin Sorter Proto. Finish Proto. 2 u n 5/14/01 7/30/04 3/31/04 3/31/04 7/30/04 CMS Annual Review September 16, 2003 29

CSC Trigger FY 02 -05 L 2, 3 Milestones - II n Begin Production u u u u u CSC Muon Trigger Finish MPC Production Finish SR/SP Production Finish Backplane Production Finish CCC Production Finish Sorter Production 3/31/05 3/31/05 4/1/05 Begin MPC Installation Begin SR/SP Installation Begin Backplane Installation Begin CCC Installation Begin Sorter Installation Finish Installation u 4/1/04 8/1/04 3/31/05 Begin Installation u n Begin MPC Production Begin SR/SP Production Begin Backplane Production Begin CCC Production Begin Sorter Production Finish Production u n 8/1/04 4/1/05 4/1/05 5/1/05 Finish MPC Installation Finish SR/SP Installation Finish Backplane Installation Finish CCC Installation Finish Sorter Installation 5/1/05 5/1/05 CMS Annual Review September 16, 2003 30

CSC Trigger FY 02 -05 L 2, 3 Milestones - III n Begin System Tests u u u n Begin MPC System Tests Begin SR/SP System Tests Begin Backplane System Tests Begin CCC System Tests Begin Sorter System Tests Finish System Tests u u u CSC Muon Trigger 6/1/05 6/1/05 9/30/05 Finish MPC System Tests Finish SR/SP System Tests Finish Backplane System Tests Finish CCC System Tests Finish Sorter System Tests 9/30/05 9/30/05 CMS Annual Review September 16, 2003 31

Conclusions n The CSC system is in very good shape: u u u n Chambers being mounted on disks at SX 5 Majority of the chambers already built and tested, including onchamber electronics Test beam showed that CSC peripheral crate electronics work very well under “battle conditions” Of course, much work remains: u u u We especially need to validate the optical link clocking for MPC-SP data transfer Production starts soon for peripheral crate electronics Production planning will start soon for Track Finder (MPC, SP, MS) boards CSC Muon Trigger CMS Annual Review September 16, 2003 32