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Transcript of Upgrades Week – November 2011 Goals for the November Upgrade week Schedule for Phase I Work...
Upgrades Week – November 2011 Goals for the November Upgrade week
Schedule for Phase I Work towards TP for Phase II
November 2011J. Nash - CMS Upgrades1
CMS Upgrade Weeks This is the 12th CMS Upgrade “event” Started with Upgrade Workshops
First in Feb 2004 We have held two previous workshops at FNAL
(2008,2009) These have been very successful as workshops Lots of opportunity for discussion Away from CERN we tend to allocate more time for
discussion
November 2011J. Nash - CMS Upgrades2
Reminder: CMS Upgrade Scope
3
CMS Upgrades Project Status: We have been focused
on producing the Technical Proposal for the first decade of operation Now this part of the
project is moving into construction
We need to begin to prepare a technical proposal for the second decade of operation Increase R&D Take some strategic
decisions20 September 2011J. Nash - CMS Upgrades4
CSC Factory
Gluing
Winding
CSC assembly
Wire soldering
Component soldering
B904 hall
Assembly and installation trial test of one 10 degree sector happened this week
RPC Assembly/Installation
New CMS central beampipe
Be
supportBe or AlBe??
oldnew
1630
14501948
SS or AlBe?? SS or AlBe??Be
supportBe or AlBe??
oldnew
1630
14501948
SS or AlBe?? SS or AlBe??
Issues:Impedance, HOM etc: shape OKVacuum stability: static OK, dynamic to doSupport collar on cone at 1630 mm: OKAperture: OK! see today’s presentations.Materials and Construction: work to do:Cones 1450 -->1948 machined from Be or AlBeConsidering replacing SS conical section (up to bellowsjunction with Endcap pipe at 3.12m) with AlBe. AlBe to Be braise to be studiedLighter pipe, as strong, reduces sag, activation and backgrounds, eliminates transition piece.
3120
CMS E & I, for C. Schaefer
support
3 Disks
Port Cards and POH
End Flange
Space for End Electronics
DC-DC converters
Pipes and Cables
CO2 capillary cooling tubes and flex cables
Service Cylinder
Pixel Upgrade FPIX Service Cylinder
• Layout of CO2 cooling loops is reconsidered each loop goes through DC-DC and Port Cards & POH’s new loop layout with new pressure drops
• Pixel Opto-Hybrids (readout) detailed engineering now
9
Pixel Upgrade FPIX half-disk
FPIX module 16 pixel ROC Each blade has 2 modules Half disk:
- inner: 11 blades
- outer : 17 blades
- independent mount to service cylinder
allows independent removal
FPIX blade
Outer Assembly Mounts X3
Inner Assembly Mounts X3
SS Tubing Coupling X6 9
new !
new !
HCAL Upgrade SiPM Recent Results
Pixel dead-time issue solved in 15 Hamamatsu Device 99% cell recovery after 15ns
Dynamic range limitations overcome using large area SiPMs 22k pixels per readout channel 4 optically-mixed tile-fibers per
SiPM First results from new 15
Hamamatsu devices tested with Electro-Optical Decoding Units in H2 test beam at CERN in July are positive Will proceed with establishing HPK
as a baseline for the upgrade Meanwhile continue to qualify
other vendors, final choice by end of 2012
9/9/11D. Baden10
TCA: AMC13 & HTR HCAL Upgrade helped developed the
CMS-wide Standard for microTCA control within Electronic Steering Group
9/9/11D. Baden11
U. Minnesota developed HCAL Trigger & Readout (HTR)
• Completed 2nd TCA Prototype• Fabricating HTR in India• Much FPGA integration
Calorimeter Trigger Designs
12
• Several prototype uTCA trigger cards have been built and have been shown to work. Working demonstrators at the crate level exist also.
• Two calorimeter trigger architectures are under consideration.• We have organised a review for the two Calorimeter Trigger
architectures. The aim of the review is:1. to select the architecture which best serves CMS for the next
decade.2. Produce a plan for the two relevant groups (Wisconsin-
Imperial) to work together towards the final design.
ECAL–Trigger Interface - OptoSLB
13
Converts ECAL copper signals to 4.8 GBps optical and allows to keep using the current ECAL Trigger electronics after 2014.
Bought 4 optical devices for evaluation. Design effort for the card has started. First prototypes have been promised late in 2011 early 2012. Production should start in 2012.
Goals for the November Upgrade Week Refine phase I schedule
Tasks for each of the projects given as homework before the workshop
Use the workshop to refine these schedules, and to look at the dependencies between systems
Come out of the workshop with the start of an overall project schedule To be refined and maintained as we move forward
November 2011J. Nash - CMS Upgrades14
Project Breakdown Define the appropriate high level project tasks
(eg – Front end electronics, cooling…) We will use these tasks as the units for
reporting and tracking the progress on the project
This was very successful during the build of CMS
Important to break the project down in an appropriate way This certainly depends on the project, so no top
down overall requirement for the shape of these
November 2011J. Nash - CMS Upgrades15
Milestones Define a set of milestones for each of the
project tasks Examples
Prototypes ready, TDR ready (the LHCC are waiting for these…), production review, Commissioning
Declare them (at a defined level) to the upgrade project
Discuss how we will monitor and present them
November 2011J. Nash - CMS Upgrades16
Dependencies between projects Look at Links to other projects, and the
machine schedule and how they affect the milestones Take into account links between projects Take into account possible shutdowns now being
considered i.e. TS or LS2 installations We would like everyone to take the latest
“official” schedule for the machine as the basis for when the shutdowns could be
Allow for the possibility of an extended Technical Stop before LS2
November 2011J. Nash - CMS Upgrades17
Longer Term Planning – Sept LHCCLonger Term Planning – Sept LHCC
November 2011 J. Nash - CMS Upgrades 18
Not yet approved!
Costs Cost profile
Look at potential spending profiles for the project Look at impact on delivery
Realistic assessment of arrival of funding
November 2011J. Nash - CMS Upgrades19
Goals for November workshop - Phase II Develop a plan for proceeding with the phase II
project We will need to produce a technical proposal for
phase II (CMS2) on the timescale of around 2014 We need to take strategic decisions which will shape
the future CMS detector These decisions need to be taken by CMS as a whole
with the goal of producing the best instrument for physics measurement at a high luminosity LHC
Proposal: Create a CMS2 project review group High level strategy group Not based in sub-detector Reports to Upgrade Management, and ultimately to the CB
November 2011J. Nash - CMS Upgrades20
Reminder: CMS Upgrade Scope
21
High Luminosity LHC (HL-LHC) Goals for the High Luminosity Running after
the third technical stop Integrated Luminosity 3000/fb
This to be collected at up to 300/fb-yr Detectors need to cope with high pile-up
Up to an order of magnitude greater than what we are seeing now
Detectors need to cope with high radiation Up to an order of magnitude greater than we
expected for LHC operation
November 2011J. Nash - CMS Upgrades22
Detector ChallengesCMS from LHC to SLHC
9 March 2011J. Nash CMS Upgrade Plans23
10331033
10351035
1032 cm-2 s-1 1032 cm-2 s-1
10341034
The tracker is the key detector which will require upgrading for SLHC Phase 2
The tracker is the key detector which will require upgrading for SLHC Phase 2
Level 1 Trigger
The trigger/daq system of CMS will require an upgrade to cope with the higher occupancies and data rates at HL-LHC
One of the key issues for CMS is the requirement to include some element of tracking in the Level 1 Trigger One example: There may not
be enough rejection power using the muon and calorimeter triggers to handle the higher luminosity conditions at HL-LHC
Adding tracking information at Level 1 gives the ability to adjust PT thresholds
Single electron trigger rate also suffers Isolation criteria are
insufficient to reduce rate at L = 1035 cm-2.s-1
9 March 2011J. Nash CMS Upgrade Plans24
Level 1 Trigger has no discrimination for PT > ~ 20 GeV/c
Level 1 Trigger has no discrimination for PT > ~ 20 GeV/c
Phase II – the Big Projects
A completely new tracking system Able to handle the
very extreme environment High pileup implies
high occupancy and in some areas high radiation exposure
Able to participate in the Level 1 Trigger Decision
New Forward Calorimetry?
New Trigger/DAQ New Electronics
Systems
November 2011J. Nash - CMS Upgrades25
SearchWindow
γ
Technical Proposal in 2014? How long should we spend working on R&D
We have been conducting R&D since around 2006 At some point we need to make decisions about
what directions we will take, and move from R&D phase to a proto-typing phase
November 2011J. Nash - CMS Upgrades26
Peter Sharp CERN CMS Electronics 2004 27
LHCC Meeting March 2004
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24Activity 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007
First use of Micro-electronics LEP Si
First use of CMOS Delphi +++
Eurochip / Europractice Electronics Design Tools Continuation of Europractice
Establish CERN MIC Group
Micro-electronics User Group
LEB / LECC Workshops Continuation of Workshops
SSC R&D / DRDC SSC DRDC
Establish Electronics Infrastructure
R&D for LHCC DRDC followed by Experiments
IBM 250 nm Partnership IBM 250nm
Proposed IBM DSM Partnership IBM DSM
Experiment Technical Proposals
Build LHC Experiments R&D Prototypes Production
R&D to Upgrade LHC Experiments R&D
Over View Setting up Electronics InfrastructureR&D for LHC 1 Prototypes Production R&D for SLHC1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 2 3
25 26 27 28 29 30 31 322008 2009 2010 2011 2012 2013 2014 2015
Continuation of Europractice
Continuation of Workshops
Prototypes Production
R&D for SLHC Prototypes Production4 1 2 3 4 5
Time needed for Phase II R&D There were about 10 years of R&D for the initial
build of CMS Followed by
2 years proto-typing 5 years production-install-commission
To get a new big detector ready by 2022 the timescale of 2014 for a TP just fits. The detectors for phase II are the same scale as major
sub-detectors were for the LHC, and technically more complex
We will need to ensure we are doing enough focused R&D to be ready to make designs and decisions.
November 2011J. Nash - CMS Upgrades28
Tracker Phase II R&D Some of the earliest R&D was on how we
could build a new tracking detector This is an extremely challenging task, and will
certainly have a major impact on our ability to do ANY physics in a High Luminosity Environment
R&D in the tracker project is progressing well, and the Tracker has prepared a phase II upgrade organization
November 2011J. Nash - CMS Upgrades29
Phase II R&D
Activities/topics Overall coordination: D. Abbaneo• Module design Strip module design: A. Messineo• Layout modelling Pixellated module design: R. Lipton• General integration issues• Schedule, planning, priorities• …
Electronics
Activities/topics• Front-End ASICS• Hybrids and interconnects• Data links• FE Driver and Controller Hardware• Electronic System Architecture• Test/commissioning hardware
Coordination: F Vasey
Power distribution
Activities/topics• ASICS evaluation• System development• Integration and system tests
Coordination: K. Klein
Sensors
Activities/topics• HPK sensors• Irradiations• 3-d silicon• Diamonds• …• …
Coordination: A. Dierlamm
Mechanics
Activities/topics• Qualification of materials• 3d modelling• Thermal modelling / lab tests• Deformation analysis• …• …
Coordination: A. Onnela
Upgrade Steering Board
CO2 cooling
Activities/topics• Process qualification• Modelling• Components / system design• Engineering of pixeI system• …• …
Coordination: H. Postema
Trigger simulations
Beam tests
Activities/topics• Hardware development and maintenance• Planning/running tests
Coordination: P. Luukka, L. Spiegel
2/17/11D. Abbaneo30
Tracker R&D – Pt Modules
November 2011J. Nash - CMS Upgrades31
Tracker R&D - Electronics
November 2011J. Nash - CMS Upgrades32
Tracker R&D - cooling
November 2011J. Nash - CMS Upgrades33
Tracking Trigger Task Force Study how a Level 1 trigger could be built
using the tracking detector as input How many Pt modules needed for a Level 1
Trigger? Where do these need to be placed?
At the first FNAL workshop we kicked off the work of this task force with some radical layouts to be studied in order to help answer some of these questions.
November 2011J. Nash - CMS Upgrades34
Tracking performance also studied
November 2011J. Nash - CMS Upgrades35
Studies of different layouts now well advanced
November 2011J. Nash - CMS Upgrades36
Forward Calorimetry task force The second Task force has been asked to
study calorimetry in the forward region What are the requirements from physics for
performance of the forward calorimetry system in the HL environment?
How will the current detectors perform in the HL environment?
How could a new system be constructed?
November 2011J. Nash - CMS Upgrades37
38
Schematic of Approach
Find rad-hardtechnologies forcalorimetry materialsand photodetectors
Perform simulationsof these channels
Test beam validationsof detector components
Choose final configuration of forward calorimetry based on physics/simulations plus pragmatic considerations such as cost, feasibility of construction and schedule
Important physics channels indicated by real data and theory
39
Effect of Radiation Damage On / Jet Position
40
Effect of EM + Hadronic Radiation Damage
and In-Time Pileup onZ ee Events Mass Spectrum
Each runhas 10KMC events.The relativeheights ofeach signalpeak indicates The relativeefficiencies for findingthe ee
41
Comparison of SiPMs and Ga based PMs vs dose rate
Question: what is this picture look like for protons
Upgrade Workshop Outline
November 2011J. Nash - CMS Upgrades42
Plenary Sessions – Sub-detector contributions Wednesday afternoon
Technical progress on the upgrades Thursday morning
Schedule/Milestones as developed at the meeting Flagging up potential problems issues,
outstanding questions and any lurking potential “showstoppers” Pixel Sensors CSC Panels HCAL SiPm/Front Ends Commissioning of the trigger
November 2011J. Nash - CMS Upgrades43