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ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 o
ATLAS Preparations for LHC Phase-I Upgrade
ATLAS Week CERN, July 6th
G. Darbo - INFN / Genova
Indico AGENDA page: • http://indico.cern.ch/conferenceDisplay.py?confId=47255
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 2
IBL Status Project formally started:
• Project Leader endorsed by CB (Feb 2009) • IBL Management Board
• IBL Kick-off meeting – July 8th – Interested Institutes leaders invited • To converge towards a MoU for the IBL project
IBL General Meeting June 25th & 26th • 42 talks – 2 full day technical discussion • Whole project covered including software
TDR editor • K. Einsweiller is the TDR editor, with Mar Capeans looking at the technical
implementation of the document.
EB Minutes – 3 April 2009
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 3
IBL Project & Organization The IBL (Insertable B-Layer) is an ATLAS Upgrade project:
• It will deliver a fourth pixel layer, including a new beam-pipe, to the Inner Detector • When delivered, it will become a part of the Pixel Detector and of the Inner Detector
and the organization will be “absorbed” into the Pixel & ID The organization structure has:
• IBL MB: Management Board to execute the project • IBL IB: Institute Board, which starts today as an extension of the existing Pixel IB and
will be chaired by C, Goessling.
Module WG
IBL MB (Management Board)
Stave WG
I&I WG
Off-det WG
IBL IB (Institute Board)
Pixel Institutes
in IBL
New Institutes
in IBL
ATLAS UPO
ATLAS UPGRADE
IBL
IBL PL IBL TC
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 4
Management Board (MB)
Module WG (2 coordinators)
• FE-I4 • Sensors • Bump-Bonding • Modules • Test & QC • Irradiation
Stave WG (1 Phys + 1 Eng.)
• Staves • Cooling Design & Stave Thermal Management • HDI • Internal Services • Loaded Stave • Test & QC
IBL Integr.-Install. (2 Eng.)
• Stave Integration • Global Sup. • Beam Pipe (BP) • Ext.services inst. • IBL+BP Installation • Cooling Plant • Test & QC
Off-detector (1 Phys + 1 E.Eng.)
• Power • DCS • ROD • Opto-link • Ext.serv.design/proc. • Test Beam • System Test
IBL Management Board Membership: • IBL PL + IBL TC • 2 coordinators from each WG • Plus “extra” members
Ad-interim membership IBL Project Leader: G. Darbo IBL Technical Coordinator: H. Pernegger “Module” WG (2 Physicists): F. Hügging & M. Garcia-Sciveres “Stave” WG (1 Phy. + 1 M.E.): O. Rohne + D. Giugni “IBL Assembly & Installation” WG (2 M.E. initially, a Phy. Later): N. Hartman + R. Vuillermet “Off-detector” WG (1 Phy. + 1 E.E.): T. Flick + S. Débieux “Extra” members: Ex officio: Upgrade Coordinator (N. Hessey), PO Chair (M. Nessi), Pixel PL (B. Di Girolamo), ID PL (P. Wells), Pixel Chair (C. Gößling) Offline “liaison” Pixel Off-line coordinator: A. Andreazza TDR editor (temporary): K. Einsweiler
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 5
Ref: N. Hartman: • http://indico.cern.ch/conferenceDisplay.py?confId=43496
Predominant Stave Layouts Several layouts under study: 14 staves at Rmin=~3.2 cm
• Single and double staves – One or two (redundant) cooling channels
Inverted
Sensor Sensor
Biturbine
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 6 R. Vuillermet
• The support carbon tube is fixed in 2 point of PP0 and on PP1 walls on side C and A.
• The structural pipe with a support system is moved out from the support carbon tube.
. The new beam pipe (in any configuration with OD up to 82,5 mm) is inserted from A-side. It has 2 supports at PP0 area and 2 floating wall at PP1 on side A and C.
Two global support / installation scenarios: IBL support tube (1) / no tube (2): An IBL support tube would have advantage on stiffness and simplicity/safety for IBL installation,
but drawback are envelope needs (~1÷1.5 mm) and increase of radiation length Procedure studied on mock-up at bld.180 - procedure (1) animation:
• The beam pipe flange on A-side is to close to the B-layer envelope - Need to be cut on the aluminum section
• A structural pipe is inserted inside the Beam Pipe and supported at both sides. • The support collar at PP0 A-side is disassembled and extracted with wires at PP1. • Beam pipe is extracted from the C-side and it pulls the wire at PP1 • New cable supports are inserted inside PST at PP0. • A support carbon tube is pushed inside the PST along the structural pipe.
Started to setup a 1:1 mock-up of Pixel/beampipe/PP1 in Bat 180
A-side C-side
Installation Scenarios
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 7
Requirements for Sensors/Electronics Requirements for IBL
• IBL design Peak Luminosity = 3x1034 cm-2s-1
• Integrated Luminosity seen by IBL = 550 fb-1 • Total NIEL dose = 2.4 x 1015 ± 30% (σpp) ± 50% (damage factor) = 4.7 x 1015 neq/cm2
• Total radiation dose > 200 Mrad
€
Φ(r) =493r2
+25r
×1014
• Fit made for 2 < r < 20 cm for L=1000fb-1
• Gives for IBL @ 3.7 cm (550 fb-1):
Φ1MeV=2.4x1015 (1.2 MGy)
• Safety factors not included in the computation (pp event generator: 30%, damage factor for 1 MeV fluences: 50%)
Ref. Ian Dawson - AUW
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 8
Module Layout - Convergence Decision between Planar and 3D sensors will be done after TDR
• Need module prototypes with FE-I4 (second half 2010) • Diamonds could be another option
Common sensor baseline for engineering and system purposes • 3D sensors – single chip modules • Planar sensors – 2 chip modules • Gap between sensors: 100µm for mechanical / high voltage requirements • Maximum operating voltage: 1000 V (need more for planar?)
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Credits: M.Garcia-Sciveres – F. Hügging
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 9
3D Sensors Large collaboration
• 15 Laboratories and 3 processing facilities
Thickness 230±15 µm Module type single FE-I4 assembly #electrode 2 per 250µm Edge active 5µm Edges guard 200µm Signal (5x1015) ~12500 e- Bias (5x1015) ~150V Wcm-2( 5x1015) 33mW at -10oC Lorentz angle before irr. free Efficiency (3200 e-) 96% (0o) 99% (15o) Wafer dim. 4” Expected yield ~50% Bias bump-b and pad
FBK & CNM
SINTEF/Stanford
Credits: C. Da Via on behalh of ATLAS 3D Sensor R&D
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 10
Planar Sensor Planar sensor R&D
approved by sLHC USG
• 16 Institutions • High dose (also for
IBL) • Low cost – large
area @ sLHC • N-on-n & n-on-p
For IBL: • improve radiation
hardening • Slim edge (no
overlap in Z) • Optimize guard-ring
vs. Vbias
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 11
Planar Sensors – Slim Edge
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 12
3D & Planar – Test Beam (June ‘09) Comparison of 3D and Planar
• Test beam with magnetic field • Planar sensors are sensitive to Lorentz
angle: maximize charge at incidence angle = Lorentz angle
• 3D (electric field parallel to sensor surface) are not.
• Active edge: ~5 to ~10 µm from edge (see picture at the right)
3D FBK ToT at 15o 3200e-
planar
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 13
Frontend Chip - FE-I4
7.6mm
8mm active
2.8mm
FE-I3 74%
active 16.8mm
20.2mm
~2mm
~200µm
FE-I4 ~89%
Ch
art
ere
d r
eti
cu
le (
24
x 3
2)
IBM
re
tic
ule
~19 mm
New FE-I4
Pixel size = 250 x 50 µm2
Pixels = 80 x 336 Technology = 0.13µm Power = 0.5 W/cm2
FE-I3
Largest Chip in HEP
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 14
FE-I4 Status FE-I4 Status
• Prototype blocks in MPW (MOSIS) submitted 3/2008, measurements, irradiation
• Design review (3/2009): “Design Technical Issues” on full scale design
FE-I4 Design Collaboration Meeting - Bonn July 1st and 2nd 2009
• Very successful to finalize technical details needed for full design integration • Target date for having complete chip layout done is still September 09 • The technical schedule for each circuit block delivery is being updated • Many interfaces have been finalized and documentation of the details is
under way • Internal communication between circuit blocks • data output format headers, configuration read-back, etc. • Partitioning of power "planes" and power-up sequence • Pinout (being updated)
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 15
FE-I4 Pixel Cell Layout
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 16
Cooling: CO2 or C3F8 IBL cooling Ptotal =1.5kW Prototyping CO2 and C3F8 cooling system in cooperation with ATLAS
CERN cooling groups and NIKHEF Prototype staves and cooling pipes/heater assemblies ready to
start measurements on heat transfer coefficient and thermal performance of stave
• Pipe material plays important role in thermal gradient: figure of merit is between 16.5 °C.cm2/W (CF) and 2.4 °C.cm2/W (Ti), Ti therefore allows for higher sensor power before thermal run-away
• Choice of coolant influences pipe diameter (CO2: ~1.6mm, C3F8 ~3mm) and minimal evaporation temperature (C3F8 min Tevap=-30°C, CO2 min Tevap= -45°C)
• Want redundancy (2 pipes) to avoid this significant “single point failure” in case of leak/blockage of one pipe
Very preliminary & conservative material breakdown for different options:
Credits: D. Giugni, P. Schwemling, H. Pernegger
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 17
When is IBL Ready to Install? Difficult answer…:
• In February (AUW) we have been told that the installation date was delayed by one year • End of 2012 -> end to 2013
• Today we feel that the 2013 is optimistic • Earliest starting date for Phase I is the 2013/2014 shutdown. • The availability of LINAC4 (around 2014) will define the shutdown for
Phase I, upgrade, when the IBL would be installed. • The Upgrade Project Office (May 12th) suggests to use 2014/2015 as a
guideline for the IBL installation date. • We are now working with a schedule that foresee an installation date in
2014/2015 • Need to agree with LHC machine on Phase I date -> LHCC • The FE-I4 and Sensor/Module are on the critical path, and installing earlier
than 2014/2015 would require some compromises in the performance.
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 18
FEI4 drives the schedule for modules - getting the next FEI4 asap is crucial for module qualification
Stave 0 plays a crucial to qualify the IBL system (mechanics, staves and off detector electronics)
Service installation happens in shutdowns - need definition & procurement of services (USA15->PP2) early on to use shutdown time efficiently
Commissioning as part of Pixel system
Credits: H. Pernegger
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 19
IBL Software - Migration to Athena/G4
Attilio Andreazza coordinating the activities - mailing list for IBL software development • [email protected]
Implement IBL in the existing ATLAS software framework • Detector simulation based on Geant 4 • Keep up with material updates in the ID and surroundings • Use existing ATLAS track reconstruction algorithms • Use existing b‐tagging algorithms
Meeting end of July to discuss progress: • G4 geometry implementation (Dmitri Tsybychev) • Implementation of different digitizations (Vadim Kostyukhin) • Simulation of radiation damage (from current pixel community) • Define benchmarks for TDR
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 20
TDAQ @ sLHC Phase I Work has started within Level-1 to
• revisit the performance of current L1 algorithms at 1034 and extend to 3x1034 • Understand the benefits of topological information • Hardware changes necessary to propagate/use the topological info ν L1Calo and
L1Muon to understand together how • L1Calo info can be propagated to L1Muon for muon isolation purposes
• the max latency available to work within
FTK is a hardware track reconstruction system • It would work on L1A events and produce tracks in the whole InDet (not RoIs) within
10s of µs to be used by L2 (tracking performance similar to L2) • Work has been hampered by difficulty in producing sizable simulation datasets at 1034 • Asked to explore
• How FTK deals with 3x1034 (needs simulation) • How FTK can incorporate the IBL • How the FTK compares with expanding the L2 farm
• Planning to submit a TDR by end 2009
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 21
Muon @ sLHC Phase I Muon detector has large uncertainty (factor 5) on cavern background:
• Possible performance degradation in the very forward region 2.0<η <2.7 (CSC region)
• Original Muon Spectrometer Design with 2 layers of CSC (8 precision measurements) but currently only one layer installed.
• Study the possibility to reinforce the CSC region by inserting a thin (50 mm) detectors to provide more measuring points and possibly pad read-out
• Current Options: • TGC • MicroMegas • ThinTubes MDT
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 22
BACKUP SLIDES
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 23
New Beam Pipe From Rayʼs presentation to PO 10/6
• http://indico.cern.ch/conferenceDisplay.py?confId=60437
Need beam pipe ready for integration in SR1 1 year before IBL installation • Beam pipe production ARO long (2 years at manufacturer + 8mo for preparation at
Cern ??? - To be verified)
2009: • Aim to have full technical drawing of beam pipe by end of this year (flanges,..) • Important: Need to make official request to Beam Pipe group now • Start market survey
25mm radius compatible with aperture and mechanics
Open question to validate this number • larger TAS, smaller VI • Machine induced background • Impedance requirement & Vacuum
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 24
IBL kick-off Meeting – Draft Agenda 9:00 – Introduction – G.Darbo (20 min)
• What is IBL project – first project in the upgrade phase I – deliver a 4th layer for the pixel detector – model of resources
• Scope of the meeting 9:30 – Technical Presentation of IBL project - H. Pernegger (30 min)
• Where exists a technical baseline • Where are open technical options and what are the planned steps for a convergence • Where technical solutions have not discussed or are very little developed • Manpower figure
10:15 Coffee Break 10:45 Project Cost – G. Darbo (20 min) 11:15 Round table – “Wishes and Interest of Institutes” – Chair C. Gößling 12:45 Lunch 14:15 Sharing of Work – “Interactive Session” G.Darbo, C. Gößling
• Fill online a table with work sharing – “the big picture” • Keep note of inputs from round table
16:45 Coffee Break 17:15 Memorandum of Understanding – M.Nordberg
• What should be inside – look at ATLAS construction MoU • How to map “the big picture” into the MoU
18:00 End of the meeting
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 25
MB & WG Operation IBL organization is starting up: Management Board (IBL MB)
• Weekly meeting on Monday – closed meeting – issues tracking
The 4 Working groups (WG) cover the whole project: • WG1 – Module • WG2 – Stave • WG3 – Integration & Installation • WG4 – Off-detector
Mailing lists – open subscription to ATLAS active members • IBL General: [email protected] • WG1: [email protected] (alias [email protected]) • WG2: [email protected] (alias [email protected])
(it was the [email protected]) • WG3: [email protected] (alias [email protected]) • WG4: [email protected] (alias [email protected])
• To subscribe: https://e-groups.cern.ch/
ATLAS Preparations for LHC Phase-I Upgrade G. Darbo – INFN / Genova ATLAS Week, 8 July 2009 26
Collaborative Workspace https://espace.cern.ch/atlas-ibl/default.aspx