CERN-RRB-2006-109 23 rd October 2006 ATLAS Progress Report

23rd October 2006

1 RRB ATLAS Progress Report, CERN-RRB-2006-109

CERN-RRB-2006-109 23rd October 2006

ATLAS Progress Report

Collaboration and management

Construction status of the detector systems

(Common Projects and installation: see Marzio Nessi’s presentation)

Milestones and schedule

Brief account on other activities

Computing and physics preparation

Status of Completion Planning

Conclusions

23rd October 2006


Collaboration composition

Since the last RRB in April 2006 seven Expressions of Interests to join the ATLAS Collaborationhave been concluded with unanimous admission votes at the Collaboration Boards of 14 th July and 6th October

For them the discussions and negotiations for their contributions have been constructive and mutually beneficial

This means in particular that in each case necessary technical service tasks and contributions have been identified, besides involvements in physics

For a number of other groups we have encouraged them to join forces at this stage with existing ATLAS Institutions (in addition some other contacts have not been pursued)

There are no pending Expressions of Interest on the time scale of the April 2007 RRB

The Collaboration took also note of the withdrawal of Naruto University of Education, Tokushima, Japan, which has completed its initially expected contribution to ATLAS (GEANT4 development work)

23rd October 2006


New Institutions unanimously admitted by the ATLAS Collaboration

Fachhochschule Wiener Neustadt (FHWN), Wiener Neustadt, Austria(Technical expertize in system integrations, Grid computing)

University of Regina, Physics Department, Regina, Canada(Software tools, LAr calibrations and commissioning)

DESY (Hamburg and Zeuthen), Germany(HLT, Grid computing, shower simulations)

Humboldt University Berlin, Institute of Physics, Berlin, Germany(HLT, commissioning, computing, working very closely with DESY)

Nagoya University, Department of Physics, Nagoya, Japan(TGC trigger and DAQ)

New York University, Department of Physics, New York, U.S.A.(HLT algorithms for level-2 and EF, commissioning, power systems for

upgrades)

SLAC, Stanford, U.S.A.(Pixels – hard and software, HLT, simulations, Grid computing)

The RRB is kindly requested to endorse the admission of these seven new Institutions in the ATLAS Collaboration

23rd October 2006


ATLAS Collaboration

(As of the October 2006)

35 Countries 164 Institutions 1800 Scientific Authors total(1470 with a PhD, for M&O share)

Albany, Alberta, NIKHEF Amsterdam, Ankara, LAPP Annecy, Argonne NL, Arizona, UT Arlington, Athens, NTU Athens, Baku, IFAE Barcelona, Belgrade, Bergen, Berkeley LBL and UC, HU Berlin, Bern, Birmingham, Bologna, Bonn, Boston, Brandeis, Bratislava/SAS Kosice, Brookhaven NL, Buenos Aires, Bucharest, Cambridge, Carleton, Casablanca/Rabat, CERN, Chinese

Cluster, Chicago, Clermont-Ferrand, Columbia, NBI Copenhagen, Cosenza, AGH UST Cracow, IFJ PAN Cracow, DESY, Dortmund,

TU Dresden, JINR Dubna, Duke, Frascati, Freiburg, Geneva, Genoa, Giessen, Glasgow, LPSC Grenoble, Technion Haifa, Hampton, Harvard, Heidelberg, Hiroshima, Hiroshima IT, Indiana, Innsbruck, Iowa SU, Irvine UC, Istanbul Bogazici, KEK, Kobe,

Kyoto, Kyoto UE, Lancaster, UN La Plata, Lecce, Lisbon LIP, Liverpool, Ljubljana, QMW London, RHBNC London, UC London, Lund, UA Madrid, Mainz, Manchester, Mannheim, CPPM Marseille, Massachusetts, MIT, Melbourne, Michigan, Michigan SU, Milano,

Minsk NAS, Minsk NCPHEP, Montreal, McGill Montreal, FIAN Moscow, ITEP Moscow, MEPhI Moscow, MSU Moscow, Munich LMU,

MPI Munich, Nagasaki IAS, Nagoya, Naples, New Mexico, New York, Nijmegen, BINP Novosibirsk, Ohio SU, Okayama, Oklahoma, Oklahoma SU, Oregon, LAL Orsay, Osaka, Oslo, Oxford, Paris VI and VII, Pavia, Pennsylvania, Pisa, Pittsburgh, CAS Prague,

CU Prague, TU Prague, IHEP Protvino, Regina, Ritsumeikan, UFRJ Rio de Janeiro, Rochester, Rome I, Rome II, Rome III, Rutherford Appleton Laboratory, DAPNIA Saclay, Santa Cruz UC, Sheffield, Shinshu, Siegen, Simon Fraser Burnaby, SLAC,

Southern Methodist Dallas, NPI Petersburg, Stockholm, KTH Stockholm, Stony Brook, Sydney, AS Taipei, Tbilisi, Tel Aviv, Thessaloniki, Tokyo ICEPP, Tokyo MU, Toronto, TRIUMF, Tsukuba, Tufts, Udine, Uppsala, Urbana UI, Valencia, UBC Vancouver,

Victoria, Washington, Weizmann Rehovot, FH Wiener Neustadt, Wisconsin, Wuppertal, Yale, Yerevan

23rd October 2006


Management and Collaboration Board

Following the standard procedures and schedule, the Collaboration Board has elected a new Deputy Collaboration Board Chairperson, who will then become CB Chair afterwards

Kerstin Jon-And (Stockholm University)

Deputy CB Chair 2007 (and 2010), CB Chair 2008 – 2009

She will replace Siegfried Bethke (MPI Munich) whose term of office finishes at the end of this year

The Collaboration Board has also endorsed the re-appointments for the term of office March 2007 to February 2009 for

Marzio Nessi Technical CoordinatorMarkus Nordberg Resources Coordinator

The CERN Management has approved formally these appointments

Further appointments in managerial positions are included in the following organization chart

23rd October 2006


ATLAS OrganizationOctober 2006

ATLAS Plenary Meeting

Collaboration Board(Chair: C. Oram

Deputy: S. Bethke)

Resources ReviewBoard

Spokesperson(P. Jenni

Deputies: F. Gianottiand S. Stapnes)

Technical Coordinator

(M. Nessi)

Resources Coordinator(M. Nordberg)

Executive Board

CB Chair AdvisoryGroup

Inner Detector(L. Rossi,

K. EinsweilerP. Wells, F. Dittus)

Tile Calorimeter(B. Stanek)

Magnet System(H. ten Kate)

ComputingCoordination

(D. Barberis,D. Quarrie)

Data Prep.Coordination

(C. Guyot)

LAr Calorimeter(H. Oberlack,D. Fournier,J. Parsons)

Muon Instrum.(G. Mikenberg,

F. Taylor,S. Palestini)

Trigger/DAQ( N. Ellis, L. Mapelli)

ElectronicsCoordination

(P. Farthouat)

PhysicsCoordination

(I. Hinchliffe)

AdditionalMembers(H. Gordon,A. Zaitsev)

23rd October 2006


Diameter 25 mBarrel toroid length 26 mEnd-cap end-wall chamber span 46 mOverall weight 7000 Tons

Construction progress of the detector systems(The Common Projects and installation will be covered by M Nessi)

ATLAS superimposed tothe 5 floors of building 40

23rd October 2006


The Underground Cavern at Pit-1 forthe ATLAS Detector

Length = 55 mWidth = 32 mHeight = 35 m

Side ASide C

23rd October 2006


Inner Detector (ID)

The Inner Detector (ID) is organized into four sub-systems:

Pixels (0.8 108 channels)

Silicon Tracker (SCT)(6 106 channels)

Transition Radiation Tracker (TRT)

(4 105 channels)

Common ID items

23rd October 2006


Inner Detector progress summary

Pixels: Barrel layer-2 has been integratedLow mass Al cables (from modules to first patch panel) had low yield (broken insulator). Solved with new production. Integration schedule tight, but speed is now higher than planned.

Barrel: SCT and TRT barrel integrated in SR1. Tested with cosmics (no x-talk observed). Installed in the pit. Weighingdemonstrates good understanding ofmaterial.

EC: SCT ECC has been integrated veryrecently with TRT ECC after all tests were done on sub-assemblies. SCT ECA is dressing its thermal enclosures and will be ready for integration with TRT by midNovember. The schedule is driven by

SCT ECA.

The schedule for the Inner Detector remains very tight, without any float left (critical path: Installation and “sign-off” in the pit)

Barrel TRT

TRT+SCT barrel completed in SR1

23rd October 2006


ID TRT + SCT barrel tested in SR1

One-eighth of the TRT and one-quarter of the SCT were equipped with complete readout chains

Dead channels: 0.2% SCT, 1.5% TRT

Noise level as for the individual parts and below specs (e.g. SCT random noise prob. is 4.5 10-5, spec = 5 10-4)

No cross talk measured (many trials done) 4 105 cosmics trigger taken

TRT %noise occupancy before-after insertion

Side view of a cosmic track trough TRT and SCT, noise is small

23rd October 2006


ID barrel travels to the pit, 24th Aug 2006

Through the parking areaA tight fit between BT and EC Calorimeter

From the trolley to the support rails Inside cryostat

23rd October 2006


ID End-Caps TRT + SCT integration of EC-C was done end of September, the A side will follow in November

SCT ECC, in front of its outer thermal enclosure

EC-C integration TRT + SCT

23rd October 2006


All modules have been delivered with good yield

Both EC have been integrated, delivered to CERN and acceptance-tested

One EC will now go through cosmics tests

Barrel stave production did finish mid September (including corrosion leak repairs)

Layer-2 has been fully integrated, the two Layer-1 half-shells are finished, and about 1/3 of the B-layer bi-staves assembled

The best staves (least dead channels, best thermal performance) are reserved for the b-layer

A new potential issue under investigation arefailing opto-boards (integrated in service panels)

Pixel ECC at CERN, 3 disks visible

Pixels

23rd October 2006


Pixel Layer-2 – half shell

Pixel Layer2, once clamped, outside

Pixel Layer2, once clamped, inside

Ready for installation date is 1st April 2007

23rd October 2006


LAr and Tile Calorimeters

Tile barrel Tile extended barrel

LAr forward calorimeter (FCAL)

LAr hadronic end-cap (HEC)

LAr EM end-cap (EMEC)

LAr EM barrel

23rd October 2006


Calorimeter barrel after its move into the center of the detector (4th November 2005)

Barrel LAr and Tile Calorimeters

The barrel calorimeters are in their final position at the centre of the detector since November 2005

The final cool-down of the LAr cryostat took place over April and May 2006

Barrel Cool- down Temperature

80,00

100,00

120,00

140,00

160,00

180,00

200,00

220,00

240,00

260,00

280,00

300,00

12.04

.2006

19.04

.2006

26.04

.2006

03.05

.2006

10.05

.2006

17.05

.2006

24.05

.2006

Date

Temp

erat

ure

(K)

Minimum detector temperature read on the cryo system

Maximum detector temperature read on the cryo system

Last updated 23-05-2006

23rd October 2006


LAr barrel history over the past months June: Barrel filled with LAr

Tried burning of a few shorts in the barrel calorimeter in some modulesResults positive on Presampler, essentially no difference on Calorimeter

July: Decide to empty / refill by condensation Refilling operation took 20 days

HV status (at an early stage of commissioning…)

1600 V on Calorimeter, 2000 V on Presampler, leaving out known problematic channels:

Status on Calorimeter: 2 sectors HV shorts, 10 sectors working with half of the signal, out of 448 independent sectorsStatus on presampler: 7 problems, will try to burn themProblematic channels: will be dealt with separately Plans: Leave calorimeter off when not needed,

put 1600 V on 6 – 8 modules needed for cosmics running

expansion vessel pressure

1,2

1,22

1,24

1,26

1,28

1,3

8.6.06 0:00 10.6.060:00

12.6.060:00

14.6.060:00

16.6.060:00

18.6.060:00

20.6.060:00

22.6.060:00

date

arg

on

pre

ss

ure

(b

ara

)

Stable pressure in expansion vessel

Impurity level:Measured with four purity cells:(0.20 +- 0.05) ppm O2

Temperature stability:Tmin = 88.2 KTmax = 88.6 KDetector sub-cooled between 5.8 K and 8.6 K

23rd October 2006


End-Cap LAr and Tile Calorimeters

The end-cap calorimeters on side C were assembled in the cavern by end of January 2006, and then the end-cap on side A followed in May 2006

Main LAr activities and plans forthe end-caps

EC-A:

- Since August installation of FE electronics (no LVPS yet)- November 2006 start cool down- February 2007 start cold operation

EC-C:

- Since April installation of FE electronics, then switched to EC-A- February 2007 start cool down- April 2007 start cold operation

Completed end-cap calorimeter side C, just before insertion into the detector

23rd October 2006


Calorimeter electronics

The installation of the LAr Front End (FE) electronics on the detector, as well as of the Back End (BE) read-out electronics in the control room, is proceeding to plans(all production is very close to be finished)

A major concern are still the in-time availability, and the reliability of the low and (to a lesser extent) the high voltage LAr power supplies

For the Tile Calorimeter, a control problem for the lowvoltage supplies has been understood, and a correctiveaction is being implemented (but impact commissioning)

Both addressed in detail with the LHCC referees

LAr barrel ROD system in USA15

LAr FE crate

23rd October 2006


Detailed commissioning work has started… some examples

Muons in cosmics…

Noise studies…… day to day work to track coherent noise

Calibration pulse studies…

0.1-0.2 % amplitudestability over onemonth

No increase of coherent noise when solenoid field is on

S/B =11

First high energy ionization signal

23rd October 2006


Correlation betweenLAr Middle & Front layer

Event display from the first LAr + Tile Calorimeter barrel cosmics run

23rd October 2006


Muon Spectrometer Instrumentation

Precision chambers:- MDTs in the barrel and end-caps- CSCs at large rapidity for the innermost end-cap stationsTrigger chambers:- RPCs in the barrel- TGCs in the end-caps

The Muon Spectrometer is instrumented with precision chambers and fast trigger chambers

A crucial component to reach the required accuracy is the sophisticated alignment measurement and monitoring system

At the end of February 2006 the huge and long effort of series chamber production in many sites was completed for all chamber types

23rd October 2006


Muon barrel chambers (all)

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

15-Dec-09

03-Feb-10

25-Mar-10

14-May-10

03-Jul-10 22-Aug-10

11-Oct-10

30-Nov-10

19-Jan-11

Extrapolation assumes 3.7

chambers per day.

The main problem has been access and crane availability, more than chamber availability or the actual installation of the chambers on the rails

Lots of detailed small problems need to be solved inside the detector when moving the chambers to their final positions: services out of envelope, poor access, scaffolding in front of the chambers, etc.

Barrel Muon Chamberinstallation:

Almost 80 % installed today

23rd October 2006


August 2006 saw the firstcombined MDT + RPC+ Tile Calorimetercosmic ray muon run

RPC trigger on sector-13

23rd October 2006


Assembly of End-Cap Big Wheel sectors in Hall 180

Assembly progress in 2006:• Sectors for TGC-1-C: completed by April 7

(~10 days/sector in 2006)

• Sectors for MDT-C: completed by May 23 (~12 days/sector in 2006)

• Sectors for TGC-2-C: completed between May 1 and Aug 29 (7 days/sector over most of the assembly period)

• Sectors for MDT-A finished within few weeks,

TGC-3-C well advanced

There are in total for both sides 6 TGC and 2 MDT

Big Wheels, requiring 72 TGC and 32 MDT sectors

23rd October 2006


First TGC ‘Big-Wheel’ assembled in the cavern early September 2006

23rd October 2006


SDX1

USA15

UX15

ATLAS Trigger / DAQ Data Flow

ATLASdetector

Read-Out

Drivers(RODs) First-

leveltrigger

Read-OutSubsystems

(ROSs)

UX15

USA15

Dedicated links

Timing Trigger Control (TTC)

1600Read-OutLinks

Gig

abit

Eth

erne

t

RoIBuilder

pROSR

egio

ns O

f Int

eres

t

VME~150PCs

Data of events acceptedby first-level trigger

Eve

nt d

ata

requ

ests

Del

ete

com

man

ds

Req

uest

ed e

vent

dat

a

stores LVL2output

Event data pushed @ ≤ 100 kHz, 1600 fragments of ~ 1 kByte each

Second-leveltrigger

LVL2Super-visor

SDX1CERN computer centre

DataFlowManager

EventFilter(EF)

pROS

~ 500 ~1600

stores LVL2output

dual-CPU nodes

~100 ~30

Network switches

Event data pulled:partial events @ ≤ 100 kHz, full events @ ~ 3 kHz

Event rate ~ 200 HzData

storage

LocalStorage

SubFarmOutputs

(SFOs)

LVL2 farm

Network switches

EventBuilderSubFarm

Inputs

(SFIs)

23rd October 2006


Level-1

The level-1 system (calorimeter, muon and central trigger logics) is in the production and installation phases for both the hardware and software

The muon trigger sub-system faces a very tight schedule for the on-chamber components as reported before, but is proceeding satisfactorily

23rd October 2006

30 RRB ATLAS Progress Report, CERN-RRB-2006-109Tile calorimeter test-pulse signal recorded

through LVL1 Pre-processor

LVL1 calorimeter trigger

Installation in the underground countingroom is in progress

– Cabling, patch panels, tests with test-pulse signals from calorimeters, etc.

– Also integration with DAQ, HLT and LVL1 CTP

Full-crate tests of pre-production modulesare almost completed

– Preprocessor & ROD modules are the most schedule-critical items

– Most modules now in production

Pre-Processor 1/8Cluster Processor 1/4

Analogue signalcables in USA15

23rd October 2006


Z (cm)

X (cm)

18m

12 m

Barrel Trigger Sector 13:Extrapolation of RPC cosmic-ray

tracks to ground level

ATLAS shafts

TGC detectors with on-detectortrigger electronics in cavern

Trigger rate ~60 Hz consistentwith simulation of cosmic rays incorresponding configuration

LVL1 muon trigger

23rd October 2006


HLT/DAQ/DCS

The High Level Trigger (HLT), Data Acquisition (DAQ) and Detector Control System (DCS)activities have continued to proceed according to plans

Large scale system tests, involving up to 800 nodes, have further demonstrated the requiredsystem performance and scalability

Scalability is particularly important for staging needs during the initial running of ATLAS

A major emphasis was put on all aspects of the HLT and DAQ software developments

Fraction of events passing LVL2 as a function of the decision latency

0

0.2

0.4

0.6

0.8

1

1.2

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29

Latency (ms)

Frac

tion

of e

vent

s

mu

jet

e

Components of the DCS are in fabrication or already finished (ELMB), and are already widely used, and the s/w components are available

The DCS is one of the first systems already in operation at Pit-1

Example of performance optimization

RRB ATLAS Progress Report, CERN-RRB-2006-109

Installation & commissioning - Read-Out System

All 153 ROSs installed and standalone

commissioned

– Each ROS PC is equipped with the final number of ROBIN cards (700 in total including spares)

44 of them connected to RODsand fully commissioned

– These are the full LAr-barrel, 1/2 of Tile and the CTP

– Taking data regularly with final DAQ

• Event building at the ROS level using the control network

Commissioning of other detector read-outs driven by RODs installation

– Expect to complete most of it by end 2006

ROBIN

23rd October 2006


DAQ/HLT pre-series system

• Pre-series system at Point-1 continues to be extensively used

– For measurements, assessment and validation

• HLT algorithms started to be used as well– Thanks to substantial progress in

complex software integration process– Using physics data-sets pre-loaded in

ROSs – Egamma, muon, tau and jet algorithms

have been integrated for the first time online (release 11.0.6)

• “24-hr” DAQ/HLT-runs regularly organised– Use full chain as if it was an ATLAS run– Force to focus on operational issues– Increase expertise – Reveal problems not seen on sub-system

testing

Extremely valuable!

23rd October 2006


A total of ~100 racks / 2500 highest-performance multi-core PCs in final system- First 50 machines of Event Builder and HLT infrastructure are being installed- First 4 HLT racks (~120 computing nodes) follow in early 2007

Installation & commissioning - SDX1 (surface HLT/DAQ room)

23rd October 2006


Construction issues and risks (‘Top-Watch List’)

A list of these issues is monitored monthly by the TMB and EB, and it is publicly visible on the Web, including a description of the corrective actions undertaken:

http://atlas.web.cern.ch/Atlas/TCOORD/TMB/

LHCC milestones evolution

23rd October 2006


ATLAS Installation Activities (Working Schedule)

- Beam pipe in place end of August 2007- Restricted access to complete end-wall muon chambers and global commissioning until Nov 2007- Ready for collisions from Nov 2007

36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52

JN ID

AID

CID

C

36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52

Cold tests

BW-A(TGC3)

Beam tuning @ 450 GeV + collisions

UX

15 &

LH

C c

losi

ng

Feb '07

services

IDC connection and testing

Barrel Muon A

JT

BW-A (tooling +TGC1)

ID barrel connection and testing

LAr A cool down

IDA connection and testingop

enin

g

Oct '07 Nov '07Sep '07

BW-A (MDT)

Apr '07 Jun '07Mar '07 Jul '07 Aug '07May '07

ECT- C cooldown &

test

May '07

VJ

Cold tests

JT VT

Small Wheel C

Endcap Toroid C

ECT on half truck

Endcap Toroid A

Feb '07Sep '06 Oct '06 Jan '07Nov '06 Dec '06

Side A

Barrel

Side C

Side A

Barrel

Side C

Glo

bal C

omm

issi

onin

g

glob

al te

sts,

pum

p do

wn

& b

ake

out

JF EO, side A

Global Commissioning

JF

Big Wheels in park position

VJ

EO, side C

Access restrictions once toroid in place

JF

Pixe

l

open

ing

Limited access

VA

Small Wheel A

Sep '06

VT

JF

Jan '07Dec '06Nov '06

BW-A(TGC2)

Oct '06

Tru

ck

LAr C cool downservices installation

open

ing

Big Wheel (TGC1)

Big Wheel (MDT)BIG WHEEL

(TGC2)

Sep '07 Nov '07Mar '07 Oct '07Apr '07

Dec '07

Jun '07 Aug '07Jul '07

Pixel connection and testing

Access from sector 13

VA

Big Wheel (TGC3) Muon

Barrel C

Dec '07

BT test Full Magnet test

23rd October 2006


Commissioning plans (overview)

• Integration of experiment

• Global aim: ATLAS operational in summer 2007

• First milestone: initial ATLAS core operational in fall 2006

– Participants

• Barrel calorimeters (with at least a minimal geometry)

• DAQ• Central DCS• Online DataBases• Control room• Common trigger using TTC, LTP, CTP

– Additional “ingredients”

• Monitoring system, “combined” monitoring• A cosmic trigger for real particles in the detector

– Offline analysis

23rd October 2006


ATLAS forward detectors

Being developed since the encouragements after the LHCC LoI CERN/LHCC/2004-010:

Roman Pots: Absolute luminosity measurement

LUCID: Cherenkov light luminosity monitor

LoI to be submitted to the LHCC after the internal review is concluded (aim for February 2007):

Zero Degree Calorimeter (ZDC) Instrumentation of the TAN for HI physicsand beam tuning(Working contacts with LHCf)

Future evolutions, to pass through ATLAS first, and then LHCC:

Integration of so-called ‘FP420’ (the ATLAS participants) into the ATLAS forward detector and physics programme

Note: ATLAS forward detector and physics efforts are treated as an integral part of ATLAS in all aspects

23rd October 2006


ATLAS organization to steer R&D for upgrades

ATLAS has put in place a structure to steer its planning for future upgrades, in particular forR&D activities needed for possible luminosity upgrades of the LHC (‘SLHC’)

The main goals are to

Develop a realistic and coherent upgrade plan addressing the physics potential

Retain detector experts in ATLAS with challenging developments besides detector commissioning and running

Cover less attractive (but essential) aspects right from the beginning

The organization has two major coordination bodies

Upgrade Steering Group (USG)(Existing since June 2004, with representatives from systems, software, physics,and relevant Technical Coordination areas)

Project Office (UPO)(New body, fully embedded within the Technical Coordination)

23rd October 2006


23rd October 2006


Areas to be addressed by Upgrade Project Office

– overall mechanical design, drawings and layout control– Reviews and R&D follow-up– planning of services– electronics coordination– installation scenarios, scheduling– radiation, shielding, activation– interface to machine

Engineers/technicians in project office are expected to be part-time active in ATLAS operations

Define work packages to be taken up by groups outside of CERN (under project office coordination)

ATLAS SLHC R&D projects

There is a reviewing and approval procedure in place, and first proposals have been internally approved, and others are in the pipe-line

There is good communication with CMS upgrade studies to benefit from common approaches

However, there is no ambiguity, ATLAS’ priority is to complete, commission and exploit the TDR detector !

23rd October 2006


ATLAS Computing Timeline

2003 • POOL/SEAL release (done)

• ATLAS release 7 (with POOL persistency) (done)

• LCG-1 deployment (done)

• ATLAS complete Geant4 validation (done)

• ATLAS release 8 (done)

• DC2 Phase 1: simulation production (done)

• DC2 Phase 2: intensive reconstruction (done)

• Combined test beams (barrel wedge) (done)

• Computing Model paper (done)

• Computing Memorandum of Understanding (done)

• ATLAS Computing TDR and LCG TDR (done)

• Start of Computing System Commissioning (in progress)

• Physics Readiness Documents (re-scheduled: early 2007)

• Start cosmic ray run• GO!

2004

2005

2006

2007

23rd October 2006


The computing and software suite has progressed on a very broad front, with a particular emphasis to make it as accessible as possible to the user community

Examples: GRID production toolsSoftware infrastructureDetector Description and graphicsFramework and Event Data ModelSimulationTracking (ID and Muons) and calorimeters (LAr and Tiles)Database and data managementReconstruction and Physics Analysis toolsDistributed analysis

Computing System Commissioning (CSC) along sub-system tests with well-defined goals, preconditions, clients and quantifiable acceptance tests

Examples: Full Software ChainFrom generators to physics analysis

Tier-0 ScalingCalibration & AlignmentTrigger Chain & MonitoringDistributed Data ManagementDistributed Production (Simulation & Re-processing)(Distributed) Physics AnalysisGeneral ‘rehearsal’ of TDAQ/Offline data flow and analysis

ATLAS computing is fully embedded in, and committed to, the WLCG framework

Special issues have been addressed in task forces

Examples Luminosity block structureData Streaming Model

23rd October 2006


Example 1: daily production jobs over the past couple of months

Production for software validation and CSC physics samples

Some statistics June now:Over 50 Million events produced EGEE grid 59 %

NorduGrid 13 %OSG 28 %

23rd October 2006


DDM Operations: T0->T1’s

Data flow to 9 Tier-1’s

No direct data flow from T0 to Tier-2’s (ATLAS Computing Model)

NorduGrid to be integrated into Distributed Data Management (DDM) system

Total data copied so far: 1.6 PB (1 PB = 10^15 Bytes)

DDM is critical, and needs full functionality urgently

Example 2: data flow tests over the past few months

23rd October 2006


Executive Board

ATLAS management: SP, Deputy SP, RC, TCCollaboration Management, experiment execution, strategy, publications, resources, upgrades, etc.

PublicationCommittee,Speaker Committee

CB

Detector Operation (Run Coordinator)Detector operation during data taking, online data quality, …

Trigger (Trigger Coordinator)Trigger data quality,performance, menu tables, new triggers, ..

Data Preparation (Data Preparation Coordinator)Offline data quality, first reconstruction of physics objects, calibration, alignment (e.g. with Zll data)

Computing (Computing Coordinator)Core Software, operation of offline computing, …

Physics (Physics Coordinator)optimization of algorithms for physics objects, physics channels

Figure 2

(Sub)-systems:Responsible for operation and calibration of their sub-detector and for sub-system specific software

TMB

Operation Model (Organization for LHC Exploitation)(Details can be found at http://uimon.cern.ch/twiki//bin/view/Main/OperationModel )

The DP activity is now starting withinthe context of theOperation Model

23rd October 2006


•Obtain final set of corrections, alignment and calibration constants•Compare performance of “as-installed mis-aligned” detector after calibration and

alignment to nominal (TDR) performance•Exercise (distributed) infrastructure: Condition DB, bookkeeping, etc.•A blind test: learn how to do analysis w/o a priori information•24h latency test: calibration constants for 1st pass data reconstruction at Tier0

Geometry of“as-installed mis-aligned” detector

G4-simulation of calibration samples[O(10M) events, e.g. Z ll]

Reconstruction pass N(Release 13, Feb. 07)

Analysis

Calib/alignconstantspass N

Condition DataBase

Calib/alignconstants from pass N-1 Pass 1 assumes perfect

calibration/alignmentand nominal material

In Release 12.0.3(current)

Example of preparations towards the physics exploitation:Calibration Data Challenge (CDC)

23rd October 2006


Some details for experts: Generate O(107) evts: few days of data taking, ~1 pb-1 at L = 1031 cm-2 s-1

Filter events at MC generator level to get physics spectrum expected at HLT output Pass events through G4 simulation (realistic “as installed” detector geometry) Mix events from various physics channels to reproduce HLT physics output Run LVL1 simulation (flag mode)

Produce byte streams emulate the raw data Send raw data to Point 1, pass through HLT nodes (flag mode) and SFO, write out

events by streams, closing files at boundary of luminosity blocks. Send events from Point 1 to Tier0

Perform calibration & alignment at Tier0 (also outside ?) Run reconstruction at Tier0 (and maybe Tier1s ?) produce ESD, AOD, TAGs Distribute ESD, AOD, TAGs to Tier1s and Tier2s Perform distributed analysis (possibly at Tier2s) using TAGs MCTruth propagated down to ESD only (no truth in AOD or TAGs)

A complete exercise of the full chain from trigger to (distributed) analysis, to be performed in 2007, a few months before data taking starts

Ambitious goals… need to plan it carefully (both in terms of effort needed and oftechnical issues and implications)

Looking further ahead: ‘The Dress Rehearsal’

23rd October 2006


Physics Coordination started toaddress goals of the 2007 run

30% data takingefficiency included(machine plus detector) Trigger and analysisefficiencies included

Start to commission triggers and detectors with LHC collision data (minimum bias, jets, ..) Maybe first physics measurements (minimum-bias, underlying event, QCD jets, …) ? Observe a few W l, , J/ ?

s =900 GeV, L = 1029 cm-2 s-1

Jets pT > 15 GeV

Jets pT > 50 GeV

Jets pT > 70 GeV

W e,

Z ee,

J/

100 nb-130 nb-1

+ 1 million minimum-bias/day

(b-jets: ~1.5%)

Interaction rate ~10kHz

23rd October 2006


Cost to Completion, and initial staged detector configuration

As a reminder from previous RRB meetings:

The Cost to Completion (CtC) is defined as the sum of Commissioning and Integration (C&I) pre-operation costs plus the Construction Completion (CC) cost in addition to the deliverables

The following framework was accepted at the October 2002 RRB (ATLAS Completion Plan, CERN-RRB-2002-114rev.):

CtC 68.2 MCHF (sum of CC = 47.3 MCHF and C&I = 20.9 MCHF)

Commitments from Funding Agencies for fresh resources (category 1) 46.5 MCHFFurther prospects, but without commitments at this stage (category 2) 13.6 MCHF

The missing resources, 21.7 MCHF, have to be covered by redirecting resources from staging and deferrals

The funding situation will be reviewed regularly at each RRB, and is expected to evolve as soonas further resources commitments will become available

The physics impact of the staging and deferrals was discussed in detail with the LHCC previously

It had to be clearly understood that the full potential of the ATLAS detector will need to be restoredfor the high luminosity running, which is expected to start only very few years after turn-on of theLHC, and to last for at least a decade

23rd October 2006


Updated Cost to Completion estimates

The RRB was informed in the April 2006 meeting that the ATLAS management is re-evaluating thefinancial situation and evolution since the CtC estimates accepted in October 2002

The situation is that there are new overcosts projected at the level of 4.4 MCHF for the completion, over the 68 MCHF estimated in 2002

Further delays in installation work beyond August 2007 would require additional resources for manpower to be paid (order 200 – 400 kCHF per month)

Some corrections to the initial CtC estimates are required in the areas of the magnet system, the LAr cryogenics, and the infrastructure and installation activities (manpower to meet the schedule)

System Item

Item Over Run

System Over Run

System Total Cost

System Over Cost

MCHF MCHF MCHF %

Magnet 1.76 158.2 1.1%

Technical Coordination 2.39 49.6 4.8%

Muon Big Wheels 1.39

TCn installation manpower efforts at Point 1. 1.00

LArCC project 0.25 38.7 0.6%

ATLAS 4.40 536 0.8%

Not initially part of TCn

Largely due to theengineering contracts

Workforce notavailable from CERNand Institutes

23rd October 2006


Main funding issues today

There are outstanding contributions to the baseline & Common Fund at risk 9 MCHF

Furthermore, not all the calculated 2002 CtC (CC and C&I) shares have been pledged, in fact the situation only looks quite good because CERN has committed 5 MCHF more than its calculated share 11 MCHF

The following table shows the details

Strategy proposed to the RRB to cover the remaining funding gap, including the new CtC1) Expect all outstanding baseline and Common Fund contributions according to the

Construction MoU

2) Urge all FAs to pledge their full CtC share as determined in October 2002

As CERN has committed 5 MCHF above its calculated share, this would cover thenew 4.4 MCHF additional CtC costs

3) As a fallback, extend the annual member fee for one or two years more (2007 and 2008)

The present budget request for 2007 includes this as an option, to be decided by theRRB in its April 2007 meeting, should it become necessary

Clearly, a strong solidarity from all funding partners is needed to overcome this last financial hurdle!

23rd October 2006


Status of the Cost to Completion funding (CERN-RRB-2006-069)

Funding Agency Member New funding (category 1) New funding requestsfee 2004-6 including member fee as prospects (category 2)

Constr. (included in without commitment from FATotal Comp. C&I Constr. Comp.) Total Total

ArgentinaArmenia 66 48 18 38 45Australia 357 242 115 75 140 238Austria 67 52 15 38 67Azerbaijan 43 38 5 38 38Belarus 85 75 10 75 75Brazil 64 47 17 38 41Canada 2090 1528 562 263 2090 0China NSFC+MSTC 141 99 42 38 141Czech Republic 316 196 120 113 316Denmark 422 290 132 38 58 375France IN2P3 5890 4176 1714 225 5890 0France CEA *) 1940 1379 561 38 1334Georgia 42 37 5 38 38Germany BMBF 4531 3250 1281 338 4531 0Germany DESYGermany MPI 1093 761 332 38 1093Greece 261 173 88 113 113 148Israel 739 497 242 113 739Italy 6638 4650 1988 450 6288Japan 4362 3029 1333 563 4362Morocco 57 47 10 38 41Netherlands 1934 1368 566 75 1934Norway 581 391 190 75 581Poland 136 94 42 75 123 13Portugal 446 265 181 38 339 107Romania 140 85 55 38 140Russia 2991 1995 996 263 1759JINR 1066 660 406 38 521Serbia 300Slovak Republic 72 53 19 38 82Slovenia 223 152 71 38 223Spain 1706 1109 597 113 1706Sweden 1691 1121 570 150 1691Switzerland 2372 1701 671 75 2372 0Taipei 445 318 127 38 445Turkey 85 75 10 75 75United Kingdom 4387 3063 1324 450 3133 1254US DOE + NSF 12245 8438 3807 1238 6200CERN 8452 5770 2682 38 13700

Total 68176 47272 20904 5563 62764 2135

*) The commitment shown does not include a 1 MCHF additional engineering contribution provided on the initial BT contract (see MoU Annex 8.A)

Cost to Completion proposed sharing

23rd October 2006


Financial Overview

Financial frameworkInitial Construction MoU 1995 475 MCHFUpdated construction baseline 468.5 MCHFAdditional Cost to Completion (accepted in RRB October 2002) 68.2 MCHF based on the Completion Plan (CERN-RRB-2002-114)Additional CtC identified (mentioned at the last RRB, and now announced in CERN-RRB-2006-069) 4.4 MCHFTotal costs for the initial detector 541.1 MCHF

Note that not included are: - This assumes beam pipe closure end August 2007, later dates would imply additional manpower costs of 200-400 kCHF per month- No provision for future ‘force majeure’ cost overruns- Restoration of the design-luminosity detector, estimated material costs of parts not included in present initial detector (CERN-RRB-2002-114) 20 MCHF- Forward detectors parts (luminosity) not funded yet 1 MCHF

Missing funding at this stageBaseline Construction MoU, mainly Common Fund 9 MCHF

2002 Cost to Completion (CC and C&I) calculated shares 11 MCHF

Not established funding mechanism yet for the new CtC 2006 4.4 MCHF(proposed at this RRB to be covered by the + 5 MCHF CERN CtC pledgedin 2002, or by extending ATLAS member fee by 2 more years)

23rd October 2006


Conclusions

The ATLAS project is proceeding within the framework of the accepted 2002 Completion Plan,and all the resources requested in that framework are needed now to complete the initial detector

Many important milestones have been passed in the construction, pre-assembly, integration and installation of the ATLAS detector components

The most critical construction issue is the delay in the ECT integration (as will be presented by Marzio Nessi), which has an impact on the overall installation completion (other issues remain the schedules for the ID and Muon end-cap chamber installations, and the calorimeter powersupplies)

Very major software, computing and physics preparation activities are underway as well, using the Worldwide LHC Computing Grid (WLCG) for distributed computing resources

Commissioning and planning for the early physics phases have started strongly

ATLAS is highly motivated, and on track, for first collisions in 2007 and finally LHC physics in 2008

(ATLAS expects to remain at the energy frontier of HEP for the next 10 – 15 years, and the Collaboration has already set in place a coherent organization to evaluate and plan for future upgrades in order to exploit future LHC machine high-luminosity upgrades)

(Informal news on ATLAS is available in the ATLAS eNews letter at http://aenews.cern.ch/)

23rd October 2006
