Transcript No Slide Title
ATLAS and Swedish activities
Paula Eerola Partikeldagarna, Lund 12.4.2002
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Schedule, general plans
LHC machine start-up spring 2007 (finances, accelerator issues). LHC related overcost 850 MCHF (LHC machine and experimental areas 475 MCHF, LHC machine prototyping (spent) 143 MCHF, CERN part of LHC experiments 50 MCHF, computing 120 MCHF, shortfall of expected income 40 MCHF).
ATLAS: The revised construction completion costs for the
Net over costs in Common Projects 29.7
• Magnet system • Infrastructure and shielding • LAr cryostats and cryogenics
Additional detector hardware items 19.6 7.8
2.3
Non-covered detector hardware funding Additional non-detector hardware items Total Pre-exploitation 2002-2005: 46 MCHF 6.1
4.4
11.8
52.0
Total overcosts hence 98 MCHF. ATLAS RRB has asked for scenarios for that the funding agencies provide 95 – 75 – 55 MCHF by 2007
Different deferral scenarios.
Paula Eerola Partikeldagarna, Lund 12.4.2002
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Staged Initial Detector
The initial staged detector: reduced redundancy. The main staged components are One Pixel layer in the ID Outermost TRT end-cap wheels (C-type) Part of the LAr ROD system Tile gap scintillators EES and EEL MDTs Half of the layers of the CSCs Part of the Common Project processors Part of the high luminosity shielding Some further parts of the outermost MDT chambers staged in case the initial installation is insufficient Physics impact example: the discovery potential for the Higgs signal in several final states will be degraded by about 10% (meaning that 20% more integrated luminosity is required to compensate) b-jet tagging performance deteriorated by 30% Paula Eerola Partikeldagarna, Lund 12.4.2002
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Deferral Scenarios
95 MCHF available
Initial staged detector 75(55) MCHF available
further deferrals First scenario (75 MCHF) is to 1) implement the initial staged detector (and giving up the small contingency this generated) 2)benefit from net reductions of construction completion costs to the Collaboration for some items 3)implement some further system-internal staging and cuts and benefit system-internal arrangements to cover them 4)implement reductions of pre-operation costs in 2002 This detector would still be expected to perform at the level of the initial staged detector, with higher risks.
Paula Eerola Partikeldagarna, Lund 12.4.2002
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Deferral scenarios
The second scenario (55 MCHF) is to implement
1) very strong additional deferrals for the scalable HLT and DAQ components: 10-15 MCHF 2) additional severe system-specific staging and cuts would have to be imposed 3) additional hard cuts in the M&O and C&I budgets would have to be imposed The HLT/DAQ staging would clearly jeopardize to a very large extent the B-physics and would also cut into the high-pT physics potential Paula Eerola Partikeldagarna, Lund 12.4.2002
The ATLAS SemiConductor Tracker (SCT) – Uppsala University
The Uppsala group has two main commitments to the ATLAS SCT project:
to lead the SCT Detector Control System (DCS) subproject and
to produce and test, together with the Oslo and Bergen ATLAS groups, 460 SCT Detector Modules.
Module prod.
DCS design
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pre-prod .
production 1998 1999 2000 2001 2002 2003 2004 2005
Paula Eerola Partikeldagarna, Lund 12.4.2002
The detector module
from R. Brenner
electronics hybrid silicon sensor
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ABCD ASIC TPG baseboard
Paula Eerola Partikeldagarna, Lund 12.4.2002
Module bonding and metrology in Uppsala
from R. Brenner
The Uppsala group is fully ready to start serial production of detector modules
Pre-production April-June 2002 Production July 2002-Jan 2004 Mechanical work involves 8
• Hybrid assembly • Wire bonding • Thermal cycling • Metrology
Paula Eerola Partikeldagarna, Lund 12.4.2002
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Detector Control System
from R. Brenner
The Uppsala group coordinates all the DCS of the SCT The core for the final DCS system has been developed for Inner Detector Phase II cooling tests. Schedule:
10% available early 2003
50% available end 2003 100% available 2005 Paula Eerola Partikeldagarna, Lund 12.4.2002
The ATLAS Transition Radiation Tracker (TRT) – Lund University
The Lund ATLAS group is responsible for the following items in the TRT:
The electric endplates to the barrel TRT, so-called tension plates;
DTMROC (about 30000 chips); Front-End electronics cards (FE-cards) for the barrel; Test equipment for the DTMROC and FE-cards.
Barrel module production ongoing in USA (24/96 finished) End-cap wheel production started at both Russian sites Other general ATLAS activities by Lund people:
ATLAS Management – T. Åkesson
Technical Coordination – radiation shielding – V. Hedberg B-physics working group – P. Eerola 10 Paula Eerola Partikeldagarna, Lund 12.4.2002
TRT – LU
DTMROC is being redesigned in deep submicron technology to reduce costs. First prototype being evaluated. Present schedule: production finish Oct 2003.
FE-cards: 2-layer with kapton flex connection or 2(3) layer with connectors. Both prototypes being produced.
Tester: a joint project with LU/ALICE. PC-based system is under design. Will be replicated at NBI.
Tension plates DTMROC in DSM FE cards Tester design production pre-prod .
testing 1998 1999 2000 2001 2002 2003 2004 2005
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The ATLAS Liquid Argon Calorimeter (LAr) – KTH
The KTH group is participating in the construction of the Liquid Argon Calorimeter, sharing the responsibility for
the presampler (26 sectors), the digital optical read-out links and the high voltage supplies.
Presampler Optical RO links HV supplies design pre-prod .
production testing delivery 1998 1999 2000 2001 2002 2003 2004 2005
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Status of ATLAS work at KTH
from B. Lund-Jensen
B. Lund Jensen, S. Levén, S. Rydström , (from end April, Y. Tayalatti (postdoc)), M. Pearce (optical links, < 10%)
The main task is the assembly and tests of presampler sectors that must be completed by end of April 2003.
In total about 26 sectors. So far one sector is completely ready.
5 more are assembled but require testing and/or repairs.
Maximum assembly speed is 2 sectors per month.
Critical path!!
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New clean room is ready since December.
Measured class 1000 at mounting table.
3 sectors assembled since beginning of February.
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The picture shows an assembled sector (3.1 m length) on the mounting table.
Paula Eerola Partikeldagarna, Lund 12.4.2002
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Installation of new testbench electronics.
Paula Eerola Partikeldagarna, Lund 12.4.2002
The cryostat for cold tests is in principle ready (lid has to be modified).
First cold test of a sector During the last week of April or 1 st week of May.
One 500 L dewar still required for tests of more than 1 sector per month. A presampler module in preparation for assembly before high voltage tests.
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The ATLAS Scintillating Tile Calorimeter and First Level Calorimeter Trigger (TILE-TRIG) – Stockholm University
The research groups for Particle Physics and Instrumentation Physics at Stockholm University are sharing the responsibility for the front-end read-out electronics of the ATLAS hadronic Tile calorimeter and the First Level Calorimeter Trigger. The Stockholm groups are responsible for
the design, manufacturing and quality control of the Tile Calorimeter digitising electronics (2000 boards), including ADCs, digital pipelines, control logic and read-out,
the First Level Calorimeter Trigger.
Other general ATLAS activities by Stockholm people:
ATLAS Outreach – E. Johansson 17 Paula Eerola Partikeldagarna, Lund 12.4.2002
The ATLAS TILE-TRIG – SU
from S. Silverstein
TileCal: see talk by M. Ramstedt
Trigger: Main work in Stockholm:
Production of processor backplane for e/
t
and Jet/Energy systems
Jet identification algorithm for Jet/Energy processor module
Simulation software for Jet/Energy processor system
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The Trigger Processor Backplane
from S. Silverstein
- 18 Layers, 9U x 21 slots - Over 6.000 connections - Over 21.000 pins - For both Jet/Et and e/ services t - Includes interconnections, VME, TTC and CANbus
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The ATLAS TILE-TRIG – SU
TileCal Digitiser: Spring 2001 a pre-production of 50 final boards. Autumn 2001: PRR, second pre-production of 70 boards. May-Dec 2002 all 2000 boards delivered.
Trigger: ”Full Slice Tests” in 2002 before Production Readiness Rewiews for Jet/Energy module and for common backplane. Target for PRRs 2002.
Jet/Energy-sum Processor System available for system tests: 6/03. System tests completed: 6/04. Calorimeter trigger available: 12/04
design pre-prod .
production TileCal digitiser Backplane Jet/Energy-sum module
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1998 1999 2000 2001 2002 2003 2004 2005
Paula Eerola Partikeldagarna, Lund 12.4.2002
Other projects: NorduGrid and DataGrid
Generic research in Grid-systems is performed in the framework of the Nordic NorduGrid project and the CERN-EU DataGrid project.
The NorduGrid project creates a Nordic branch of the DataGrid. Project duration January 2001 - November 2002. Includes all Swedish ATLAS groups.
NorduGrid testbed is a part of the DataGrid Testbed Work Package (WP6), and HEP Applications Work Package (WP8).
There are plans for a Nordic “Tier-1” Grid Centre for both HEP and other fields. Capacity about 1700 x (Dual 1 GHz Intel PIII) plus fileservers and tape robots. Financial scope 150 MSEK (16MEuro).
More: see talk by O. Smirnova.
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Other projects: Nordic LHC physics network
The particle physics network explores the physics discovery potential at the LHC. Duration 2001-2003.
22 The aim is to pull together Nordic particle physicists, theorists and experimentalists, to seek new physics ideas, and to study the experimental signatures of new physics.
SE: Includes all ATLAS groups and Lund theory group.
Work proceeds now in the following working groups:
Supersymmetric and rare B-decays
Extra dimensions and radions
Gluino production Charged and doubly charged Higgs CP of Higgs hh->4b final states CP violation in top decays Paula Eerola Partikeldagarna, Lund 12.4.2002
Network status and results
Publications 2001: 13 journal publications Exchange students: J. Sjölin Sholm
Bergen, P. Skands Copenhagen
Lund, K. Myklevoll Bergen
Lund.
Workshops:
Preparatory workshops in Lund (March 2000) and Copenhagen (September 2000) with 54(9) and 51(9) participants.
Oslo March 2001: 55(12) participants. Training course on ”Higgs search at LEP, techniques and results”, 19 participants.
Stockholm November 2001: 46(11) participants.Training course on ”Supersymmetry”, 32 participants. Next: Helsinki May 2002.Training course on ”Extra dimensions”.
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