atlas and swedish activities paula eerola partikeldagarna, lund 12.4.2002

ATLAS and Swedish activities

Paula EerolaPartikeldagarna, Lund 12.4.2002


2

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 initial detector configuration in 2001 MCHF: Net over costs in Common Projects

29.7• Magnet system 19.6 • Infrastructure and shielding 7.8• LAr cryostats and cryogenics 2.3

Additional detector hardware items 6.1 Non-covered detector hardware funding 4.4 Additional non-detector hardware items 11.8 Total 52.0

Pre-exploitation 2002-2005: 46 MCHF 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.


3

Staged Initial Detector The initial staged detector: reduced redundancy. The main staged components are

One Pixel layer in the IDOutermost TRT end-cap wheels (C-type)Part of the LAr ROD systemTile gap scintillatorsEES and EEL MDTsHalf of the layers of the CSCsPart of the Common Project processorsPart of the high luminosity shieldingSome 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%


4

Deferral Scenarios 95 MCHF availableInitial staged detector 75(55) MCHF availablefurther 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 items3)implement some further system-internal staging and cuts and benefit from apparent over-cost reductions because communities have found 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.


5

Deferral scenarios The second scenario (55 MCHF) is to

implement 1) very strong additional deferrals for the scalable HLT and DAQ components: 10-15 MCHF2) additional severe system-specific staging and cuts would have to be imposed3) 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


6

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.

1998 1999 2000 2001 2002 2003 2004 2005

Module prod.

DCS

design

productionpre-prod.


7

The detector modulefrom R. Brenner

silicon sensor electronics hybrid

TPG baseboard

ABCD ASIC


8

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

• Hybrid assembly• Wire bonding• Thermal cycling• Metrology


9

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


10

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; The digital integrated circuits for the read-out electronics,

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


11

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.

1998 1999 2000 2001 2002 2003 2004 2005

Tension plates

DTMROC in DSM

FE cards

Tester

design

production

pre-prod.testing


12

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.

1998 1999 2000 2001 2002 2003 2004 2005

Presampler

Optical RO links

HV supplies

design

productionpre-prod.

testing

delivery


13

Status of ATLAS work at KTHfrom B. Lund-Jensen

The main task is the assembly and tests of presampler sectors thatmust be completed by end of April 2003.In total about 26 sectors. So far one sector is completely ready.5 more are assembled but requiretesting and/or repairs.Maximum assembly speed is 2 sectors per month. Critical path!!

B. Lund-Jensen, S. Levén, S. Rydström,(from end April, Y. Tayalatti (postdoc)),M. Pearce (optical links, < 10%)


14

New clean room isready since December.Measured class 1000 at mounting table.

3 sectors assembledsince beginning ofFebruary.

The picture shows an assembled sector (3.1 m length)on the mounting table.


15

Installation of new testbench electronics.


16

The cryostat for cold tests is in principleready (lid has to be modified).First cold test of a sectorDuring the last week of Aprilor 1st week of May.

One 500 L dewar still required for tests ofmore than 1 sector per month.

A presampler module in preparation for assembly before high voltage tests.


17

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


18

The ATLAS TILE-TRIG – SUfrom S. Silverstein

TileCal: see talk by M. RamstedtTrigger: Main work in Stockholm:

Production of processor backplane for e/ and Jet/Energy systems

Jet identification algorithm for Jet/Energy processor module

Simulation software for Jet/Energy processor system


19

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/- Includes interconnections, VME, TTC and CANbus services


20

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

1998 1999 2000 2001 2002 2003 2004 2005

TileCal digitiser

Backplane

Jet/Energy-summodule

design

productionpre-prod.


21

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.


22

Other projects: Nordic LHC physics network

The particle physics network explores the physics discovery potential at the LHC. Duration 2001-2003.

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


23

Network status and results Publications 2001: 13 journal publications Exchange students: J. Sjölin SholmBergen, P. Skands

CopenhagenLund, K. Myklevoll BergenLund. 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”.

atlas and swedish activities paula eerola partikeldagarna, lund 12.4.2002

Documents

staged initial detector

mchf lhc machine

initial detector configuration

mchf total overcosts

initial installation

main staged components

atlas sct project

systeminternal staging