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Transcript of LHC CMS Detector Upgrade Project P05 – Trigger Upgrade: 401.4 Wesley Smith, U. Wisconsin L2...
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 1
P05 – Trigger Upgrade: 401.4
Wesley Smith, U. Wisconsin
L2 Manager, WBS 401.4
August 26, 2013
26 August 2013, Wesley Smith
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 226 August 2013, Wesley Smith
L1 Trigger Upgrades & Inputs
ElectromagneticCalorimeter
ECAL
Hadron Calorimeter
HCAL
Endcap MuonDetectorsCSC, RPC
Not shown (off-detector)• Muon Trigger• Calorimeter Trigger
401.04
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 3
Conceptual Design Trigger Overview Muon Trigger Calorimeter Trigger
Project Organization and Management ESH&Q Scope Schedule Risk Cost
Summary
26 August 2013, Wesley Smith
Outline
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 4
Conceptual Design
26 August 2013, Wesley Smith
LHC CMSDetectorUpgrade
Project
LHC beams cross every 25 ns with ~ 23 interactions → 0.5 MB of data, but can only store ~ 1 kHz of 0.5 MB data → Trigger
Trigger rates are driven by the increase in luminosity, the center-of-mass energy, and by higher Pile-Up (PU)
Detector readout systems limit Level-1 trigger output rate to 100 kHz, latency to 4 μsec.
Mitigate by improving e/γ isolation, τ id, μ pT resolution, μ isolation, jets with PU subtraction and L1 menu sophistication
Increase system flexibility with high bandwidth optical links and large FPGAs, and standardize on μTCA telecom standard
Build and commission upgrade in parallel with current trigger system to safeguard physics, decouple from LHC schedule
Overall design: Two-layer calorimeter trigger with tower-level precision and PU subtraction Integrated muon trigger combining all CSC, DT and RPCs in track-findingCD-1 Review -- P05: Trigger Upgrade 5
L1 Trigger Upgrade – overview
26 August 2013, Wesley Smith
LHC CMSDetectorUpgrade
Project
6
Physics priorities: Measure all Higgs BR precisely to confirm Standard Model or not ⇒
retain or improve current trigger capability critical Want to be able to answer question of naturalness - whether or not
there is new physics stabilizing Higgs masso SUSY remains a leading candidate, but if so, must have light stopso Also must be able to trigger on and search for all variants (e.g. RPV with
all hadronic final states) to draw a firm conclusion
Studied a set of benchmark physics channels Looked at performance of these channels in 2012 analyses with
and without L1 trigger upgrade at different luminositieso Based on a simplified trigger menu with a total rate < 100 kHz
Results for luminosities up to 2.2 x 1034 cm–2 s–1
Acceptance Improvements > x 2 in some channels for same rate Average Improvement 40% Results summarized in breakout sessions26 August 2013, Wesley SmithCD-1 Review -- P05: Trigger Upgrade
Upgrade Trigger Physics Performance
LHC CMSDetectorUpgrade
ProjectFinal Overall Upgrade Scheme
CD-1 Review -- P05: Trigger Upgrade 726 August 2013, Wesley Smith
LHC CMSDetector Upgrade
Project
↑HCAL Upgrade↑
Trigger Upgrade
↓Trigger Upgrade↓
(Object Finding)
(Cluster Finding)
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 8
Muon Trigger Transition
26 August 2013, Wesley Smith
Install fully paralleland higher bandwidthoptical path for CSC New CSC Muon Port
Cards mezzaninecards installed in cavern during LS1o Operations Program
Alleviates bottleneck and send all segments from each CSC (robustness to PU and collimated signals)
Build up new Track Finder in 2015 and commission in parallel, ready by 2016
Old systemNew system
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 9
401.04.03 EMU Trigger UpgradeCavern Counting Room
μTCA: Advanced Mezzanine Cards fromTelecommunications Computing Architecture(commercial telecommunications hardware)
26 August 2013, Wesley Smith
401.04.03.03MPC-EMUTFOptical Fibers*(Rice)
401.04.03.02Muon Port CardMezzanine* (Rice)
401.04.03.04Endcap MuonTrack-Finder(U. Florida)
401.04.03.05EMUTF Infrastructure(U. Florida)
401.04.03.06: Muon Sorter (Rice)
Trig
ge
r M
oth
erB
oa
rd
Da
ta M
oth
erB
oa
rd
Clo
ck&
Co
ntr
ol
Sector Processors
Clo
ck &
Co
ntr
ol
Mu
on
So
rte
r
*M&S on FY13 Ops. Prog.
VME
LHC CMSDetectorUpgrade
Project
10
401.04.03.04: EMU Track-Finder(U. Florida)
26 August 2013, Wesley SmithCD-1 Review -- P05: Trigger Upgrade
Muon Track Finder processor: MTF7 13 needed + 4 spares + 3 test setups = 20 Optimized for maximum input from muon detectors
(84 input links, 24 output links) Dual card with large capacity for RAM (~1GB) to be used for pT
assignment in track finding
Current prototype based on Virtex 6 FPGAis undergoing final tests
Virtex 7 FPGA design is ~75% done, expected late 2013
Back: Core FPGA card with PT LUT mezzanine
Front: Optics card
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 11
Calo. Trigger Upgrade in Parallel: Split inputs from ECAL and HCAL
HCALEnergy(HTR)
ECALEnergy(TCC)
Regional Calo Trigger
Global Calo Trigger
EMcandidates
Regionenergies
HFEnergy(μHTR)
HCALEnergy(μHTR)
Layer 1Calo Trigger
Layer 2 Calo TriggerC
urre
nt L
1 T
rigge
r S
yste
m
Upg
rade
L1
Trig
ger
Sys
tem
oSLB
oRM
ECAL: optical Serial Link Board (OSLB) and optical Receiver Mezzanines (oRM) connect to Present andUpgrade Calorimeter Trigger
HCAL: optical splitters drive both HTRs and μHTRs
26 August 2013, Wesley Smith
US
UK
US
UK
HCAL OpticalSplitters
Stage HCAL uHTR & assoc. Cal. Trigger Cards
(Cluster Finding)
(Object Finding)
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 12
Upgrade Calorimeter TriggerLayer 1 and 2 Hardware
US:
UK:
26 August 2013, Wesley Smith
Vienna:
(Cluster Finding)
(Object Finding)
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 13
401.04.04.02: Cal. Trig. ProcessorVirtex-6 Proto. Board – U. Wisconsin
Back End FPGAXC6VHX250T/XC6VHX380T
Front End FPGAXC6VHX250T/XC6VHX380T
Avago AFBR-810B Tx Module
4X Avago AFBR-820B Rx Module
MMC Circuitry
JTAG/USB ConsoleInterface Mezzanine
Power Modules
Dual SDRAM for dedicated DAQ and TCP/IP buffering
12x Multi Gig Backplane Connections
26 August 2013, Wesley Smith
36 total + 8 spares + 2 test setups = 46
CTP6
48 optical inputs12 optical [email protected] Gbps
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 14
Upgrade is based upon common μTCA hardware platform and components (Virtex-7 FPGA, multi-gigabit optical links) also used by other CMS systems
Many handles to facilitate testing – test-pattern injection, spy-buffer readout as well as test stands
Same team built existing trigger system and wrote its software & firmware → scope, requirements, interfaces well understood
Requirements are frozen in approved Trigger TDR
System is commissioned and operated in parallel with existing trigger
Working prototypes for all major cards exist & have passed tests Production quotes exist for all critical parts with confirmed delivery
times26 August 2013, Wesley Smith
Technical Feasibility
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 15
Standardize within US CMS Trigger Project Use of a single FPGA type: Xilinx XC7VX690T
o Also used across CMS upgrade and other CERN projects
Negotiated US price at 50% of retail through CERN and US distributor (Avnet)
Standardize across US CMS Upgrade Project Use of a common crate/backplane infrastructure
o Use same μTCA architecture as is being used by other CMS subsystems such as HCAL.
o Built to similar specifications by common vendors.o Opportunities for pooling spares and cooperation on engineering. o This allows use of common components such as:
Use of standard DAQ/Trigger/Clock Interface: BU AMC13o Common connection to CMS data acquisition, trigger timing and control
systems. o Developed for HCAL project by Boston University
26 August 2013, Wesley Smith
Value Engineering
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 16
Project Organization
26 August 2013, Wesley Smith
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 1726 August 2013, Wesley Smith
401.04 Trigger Organization Chart
Muon Port Card & Sorter:L4 Manager: Paul Padley
CERN Integration:L4 Manager: Pam Klabbers
Muon Track-Finder:L4 Manager: Ivan Furic
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 18
W.S. (U. Wisconsin) CMS Trigger Project Manager 1994-2007, Trigger Coordinator 2007 – 2012 US CMS L2 Trigger Project Manager 1998 – present
Darin Acosta (U. Florida) CMS Trigger Project Manager 2012-13 EMU Track-Finder, US CMS Trigger, 1998- present
Sridhara Dasu (U. Wisconsin) US CMS L3 Manager for Calorimeter Trigger, 1998 – present Author of original and upgrade cal. trig. Algorithms 1994 – present
Pam Klabbers (U. Wisconsin) CMS Regional Calorimeter Trigger Operations Manager
(more than a decade on RCT project) CMS Deputy Trigger Technical Coordinator
Ivan Furic (U. Florida) CMS CSC muon trigger maintenance and operations 2010-11 CMS CSCTF Upgrade leader
Paul Padley (Rice U.) US CMS EMU Project Manager 2006-2012 EMU Port Card, Clock Card, Sorter, 1998 – present
26 August 2013, Wesley Smith
Trigger Mgm’t CMS Experience
Over 75 years of combined CMS Trigger ManagementExperience!
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 19
Tom Gorski (U. Wisconsin) – Calorimeter Trigger Over a decade of engineering on the CMS Calorimeter Trigger
Alex Madorsky (U. Florida) – Muon Track-Finder Over a decade of engineering on CMS Trigger, EMU, CSCTF
Mike Matveev (Rice U.) – Muon Port Cards and Sorter Over a decade of engineering on CMS Trigger, EMU, Port
Cards, Sorter
Mathias Blake (U. Wisconsin) – Cal. Trig. Firmware New to project 5 years Applications Engineer at Xilinx, 2 years FPGA Engineer
at DRS Technologies, 3 years FPGA Design Engineer at Dolby Labs
26 August 2013, Wesley Smith
CMS Trig. Engineering Exp.
Over 40 years of engineering experience, 30 on CMS Trigger
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 20
ESH&Q
26 August 2013, Wesley Smith
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 21
Safety: follows procedures in CMS-doc-11587, FESHM L2 Manager (W.S.) responsible for applying ISM to trigger upgrade.
o Under direction of US CMS Project Management. Modules similar to others built before, of small size and no high voltage
Quality Assurance: follows procedures in CMS-doc-11584 Regularly evaluate achievement relative to performance requirements and
appropriately validate or update performance requirements and expectations to ensure quality.
QA: Equipment inspections and verifications; Software code inspections, verifications, and validations; Design reviews; Baseline change reviews; Work planning; and Self-assessments.
All modules have hardware identifiers which are tracked in a database logging QA data through all phases of construction, installation, operation and repair.
Graded Approach: Apply appropriate level of analysis, controls, and documentation commensurate
with the potential to have an environmental, safety, health, radiological, or quality impact.
Four ESH&Q Risk levels are defined and documented in CMS-doc-11584.
26 August 2013, Wesley Smith
Trigger ESH&Q
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 22
Project Scope
26 August 2013, Wesley Smith
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 23
Threshold: Demonstration of 98% agreement between the installed upgrade trigger
electronics at CERN and software emulation of this electronics through test pattern injection based on data taken after LS1, followed by demonstration of reduction of calorimeter and endcap muon trigger rates for electrons, photons, muons and taus with respect to the present system by a factor of two for a reduction of less than 15% in efficiency using the trigger emulator run on data taken after LS1. Incorporation of unganged ME1/1a data into the endcap muon trigger logic.
Objective: Demonstration of 99.5% agreement between the installed upgrade trigger
electronics at CERN and software emulation of this electronics through test pattern injection based on data taken after LS1 followed by demonstration of reduction of calorimeter and endcap muon trigger rates for electrons, photons, muons and taus with respect to the present system by a factor of two for a reduction of less than 10% in efficiency using the trigger emulator run on data taken after LS1. Calorimeter Trigger electron and photon position resolution improved. Incorporation of unganged ME1/1a data into the endcap muon trigger logic.
26 August 2013, Wesley Smith
Key Performance Parameters
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 24
None
Since both muon and calorimeter triggers have full self-test capabilities, both threshold and objective KPP are satisfied w/o requiring connected inputs or outputs.
Trigger electronics can store up sequences of test patterns and inject them into the front end of the trigger electronics at speed
Trigger electronics can receive its output, process and record this at speed for subsequent readout by DAQ.
26 August 2013, Wesley Smith
External Dependencies
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 25
Schedule
26 August 2013, Wesley Smith
LHC CMSDetectorUpgrade
Project
26CD-1 Review -- P05: Trigger Upgrade
Schedule/Milestones
26 August 2013, Wesley Smith
Targeting completion of L2 milestones 6 months earlier
401.04: 7 L2 Milestones, 8 L3 Milestones, 20 L4 Milestones
L2 Milestones:
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 27
Critical path follows second phase of module production driven by start at CD3
> 2 years float to project completion
26 August 2013, Wesley Smith
Schedule – Critical Path
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 28
Risk Analysis
26 August 2013, Wesley Smith
LHC CMSDetectorUpgrade
Project
CD-1 DOE Review -- Risk Management 29
16 risks:15 are threats and 1 opportunity: https://cms-docdb.cern.ch/cgi-bin/DocDB/ShowDocument?docid=11707
Lucas Taylor, 26-27 August 2013
401.04 Trigger Risk Register
Example risks
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 30
Senior Engineer becomes unavailable (Low Risk) Hire new engineer, subcontract to consulting firm, use FNAL engineer
Funding is delayed (Low Risk) Commission with prototypes and/or fewer production boards
Software or Firmware does not meet requirements (Low Risk) Hire extra expert effort to recover schedule and help personnel
Boards are delayed (design, manufacture or testing) (Low Risk) Hire extra effort to speed up testing schedule
Vendor non-performance (Low Risk) Acquire spending authority to use alternative vendors (while original funds are being
unencumbered).
Input or output electronics (non-trigger) delayed (Low Risk) Built in capabilities of trigger electronics provide signals for their own inputs & outputs
Overall Risk Mitigation Strategy: Continue to provide fully operational current trigger system in parallel with upgrade
commissioning Partial operation of the upgrade systems provide tangible benefits from 2015
onwards26 August 2013, Wesley Smith
Overall Trigger Risks & Mitigation
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 31
Cost
26 August 2013, Wesley Smith
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 32
C&S understood since prototypes for all major cards have been built and have passed tests
Have vendor quotes for all parts
C&S based on experience of the same team that built and wrote software and firmware for existing trigger system
Hardware is based upon common μTCA hardware platform also used by HCAL and other CMS systems
Same team wrote software and firmware for existing trigger system → scope and requirements well understood
Requirements are frozen in approved Trigger TDR
Schedule is robust because it always provides a working trigger at each stage with parallel operation of old and new trigger systems, commissioning and testing of new system during data-taking (with data) and evolution to final system while providing immediate availability of improved trigger in 2015
26 August 2013, Wesley Smith
Quality of Estimate
LHC CMSDetectorUpgrade
Project
33CD-1 Review -- P05: Trigger Upgrade
Base Cost = AY $K(No Contingency)
26 August 2013, Wesley Smith
Using the Slide TemplateBase Cost by WBS
401.04.02 Trigger Management
2254%
401.04.03 MUON Trigger2,43949%
401.04.04 Calorimeter Trigger
2,36347%
LHC CMSDetectorUpgrade
Project
34CD-1 Review -- P05: Trigger Upgrade26 August 2013, Wesley Smith
Using the Slide TemplateM&S and Labor Base Costs
M & S Univ. Labor Total
Base Cost Base Cost Base Cost
401.04.02 Trigger Management 225 0 225
401.04.03 MUON Trigger 927 1,512 2,439
401.04.04 Calorimeter Trigger 1,257 1,106 2,363
Grand Total 2,409 2,618 5,027
Base Cost & Estimate Uncertainty in AY K$No FNAL Labor in Trigger Project
LHC CMSDetectorUpgrade
Project
35CD-1 Review -- P05: Trigger Upgrade26 August 2013, Wesley Smith
Using the Slide TemplateLabor Resources by Fiscal Year
0
10
20
30
40
50
60
70
0
5
10
15
20
25
FY13 FY14 FY15 FY16 FY17 FY18 FY19
Cum
ulat
ive
FT
E
Ann
ual F
TE
Contributed Scientific
Technical
Engineering
Costed Scientific
Cumulative Total
LHC CMSDetectorUpgrade
Project
36CD-1 Review -- P05: Trigger Upgrade26 August 2013, Wesley Smith
Using the Slide TemplateLabor Resources by Type
Costed Scientific.3 FTE
0%Engineering
16.6 FTE25%
Technical8.3 FTE
13%
Contributed Scientific40.9 FTE
62%
LHC CMSDetectorUpgrade
Project
37CD-1 Review -- P05: Trigger Upgrade
Base Cost = AY $K(No Contingency)
26 August 2013, Wesley Smith
Using the Slide TemplateCost Profile by Fiscal Year
FY13 FY14 FY15 FY16 FY17 FY18 FY19
Univ. Labor 0 804 904 910 0 0 0
M & S 0 1,027 1,145 237 0 0 0
FNAL Labor 0 0 0 0 0 0 0
Cumulative Total 0 1,831 3,880 5,027 5,027 5,027 5,027
0
1,000
2,000
3,000
4,000
5,000
6,000
0
500
1,000
1,500
2,000
2,500
Cu
mu
lativ
e C
ost
s K
$
An
nu
al C
ost
s K
$
Univ. Labor
M & S
FNAL Labor
Cumulative Total
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 3826 August 2013, Wesley Smith
Trigger Design Maturity/Contingency
M&S: 2.4 M$ (48% of total cost)
Labor: 2.6 M$ (52% of total cost)
Fraction of the cost of the project divided by cost estimate type
Multiple Quotes / Travel72%
Preliminary Design
12%
Conceptual Design
10%
Novel Fabrication6%
Similar Procedure
100%
LHC CMSDetectorUpgrade
Project
39CD-1 Review -- P05: Trigger Upgrade
Base Cost & Estimate Uncertainty in AY K$
26 August 2013, Wesley Smith
Using the Slide TemplateBase Cost & Estimate Uncertainty
0
0
M & S Univ. Labor Total Estimate
Uncertainty
Base Cost
Estimate Uncertainty
Base Cost
Estimate Uncertainty
$% on base
costTotal
Estimate
401.04.02 Trigger Management 225 29 0 0 29 13% 254
401.04.03 MUON Trigger 927 416 1,512 605 1,021 42% 3,460
401.04.04 Calorimeter Trigger 1,257 250 1,106 442 693 29% 3,056
Grand Total 2,409 696 2,618 1,047 1,743 35% 6,770
No FNAL Labor in Trigger Project
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 40
Summary
26 August 2013, Wesley Smith
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 41
Trigger Upgrades meet technical performance requirements
Scope and Specifications of Trigger Upgrade are sufficiently well-defined in TDR and CDR to support the C&S estimates
Risk managed by parallel operation of old and new trigger systems, commissioning and testing of new system during data-taking (with data)
Upgrade based upon common μTCA hardware platform and components used by other CMS systems
ES&H, QA plans, C&S based on experience with working prototypes
Management and Engineering teams are experienced with sufficient design skills, having designed and built original CMS trigger.
Trigger Upgrade not on CMS Project Critical Path
Ready for CD-1
26 August 2013, Wesley Smith
Conclusions
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 42
Additional Slides
26 August 2013, Wesley Smith
LHC CMSDetectorUpgrade
ProjectL1 Upgrade TDR
Final presentation to LHCC was Tuesday June 11th
Public version of the TDR here:https://cds.cern.ch/record/1556311
Approved!
26 August 2013, Wesley SmithCD-1 Review -- P05: Trigger Upgrade 43
LHC CMSDetectorUpgrade
Project
CD-1 Review -- B04-1: Trigger Upgrade Overview 44
Process(x2 improvement highlighted)
1.1 x 1034 cm–2 s–1 2.2 x 1034 cm–2 s–1
Current Upgrade Current Upgrade
W(en),H(bb) 57.7% 87.0% 37.5% 71.5%
W(mn),H(bb) 95.9% 100% 69.6% 97.9%
VBF H( ( )tt mt ) 42.6% 51.3% 19.4% 48.4%
VBF H( ( )tt et ) 24.4% 44.3% 14.0% 39.0%
VBF H( ( )tt tt ) 17.2% 53.7% 14.9% 50.1%
H(WW(eenn)) 91.4% 97.8% 74.2% 95.3%
H(WW(mmnn)) 99.9% 99.9% 89.3% 99.9%
H(WW(emnn)) 97.6% 99.4% 86.9% 99.3%
H(WW(menn)) 99.6% 99.5% 90.7% 99.7%
StopbWce, jets (600 – 450 GeV) 55.8% 68.2% 50.3% 64.8%
StopbWc ,m jets (600 – 450 GeV) 78.1% 81.6% 76.4% 84.5%
RPV Stopjets (200 GeV) 70.1% 99.9% 43.6% 99.9%
RPV Stopjets (300 GeV) 93.7% 99.9% 79.7% 99.9%Wesley Smith, 26 August 2013
Physics Performance Summary(detail in breakout session talks)
Ave
rage
Impr
ovem
ent:
17%
(Lo
w L
umi)
& 4
0% (
Hig
h Lu
mi)
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 45
CTP7 M&S: no HB/HE Backend until 2016 Delay purchase of 34 CTP7 cards until FY15 Use 12 CTP7 Cards w/prototypes as additional spares and for test
setups.
EMU CSCTF M&S: one endcap in 2015 and other in 2016 Commission and test one endcap thoroughly so 2nd can be integrated
quickly Delay spares and use prototypes for spares, test setups Compatible with Global Muon Trigger using different Endcap inputs
Stages and Content:
26 August 2013, Wesley Smith
Trigger Staging
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 46
Consideration of alternative designs has been performed within constraints of upgrading trigger system in a running experiment and operating both present and upgraded trigger system in parallel to ensure an understood and functional trigger system at any point during data-taking.
Provide incorporation of alternative designs and architectures in design itself so that as physics priorities and beam conditions evolve, algorithms and trigger methodology can evolve as well.
Moving towards providing all available detector information at input of trigger logic so that trigger decision is not impacted by upstream selection of information. Enables changes in trigger design to have as wide a range of
options as possible. 26 August 2013, Wesley Smith
Alternatives
LHC CMSDetectorUpgrade
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47CD-1 Review -- P05: Trigger Upgrade
Schedule/Milestones – Level 3
26 August 2013, Wesley Smith
Targeting completion of milestones 3 months earlier
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 48
Schedule/Milestones – Level 4
26 August 2013, Wesley Smith
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 49
Response to Recommendationsfrom Previous Reviews
26 August 2013, Wesley Smith
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 50
Develop a plan prior to the CD-1 review for procurement of components that need to be installed prior to the end of LS1. Components are Muon Port Card Mezzanines and MPC-
EMUTF Optical Fibers that must be installed in collision hall during LS1.
Components moved to the Operations Program budget since are improvements needed when CMS starts up at end of LS1.
Incorporate the missing information identified within comment section into the CDR prior to the CD-1 review. This has been done and the CDR has been revised
26 August 2013, Wesley Smith
Response to Recommendationsfrom May Review
LHC CMSDetectorUpgrade
Project
CD-1 Review -- P05: Trigger Upgrade 51
Prior to the upcoming CD-1 review, initiate discussions on obtaining CD-3a approval for production of components needed for the initial steps in the proposed staged installation plan. These components will be essential for maintaining current trigger performance, especially if the accelerator is unable to operate with 25 ns bunch spacing. CD-3a has been discussed with the DOE, and the Project
will not seek a CD-3a approval prior to the DOE CD-1 Review.
26 August 2013, Wesley Smith
Response to Recommendationsfrom July Review