cern-rrb-2006-109 23 rd october 2006 atlas progress report
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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
2 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
3 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
4 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
5 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
6 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
7 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
8 RRB ATLAS Progress Report, CERN-RRB-2006-109
The Underground Cavern at Pit-1 forthe ATLAS Detector
Length = 55 mWidth = 32 mHeight = 35 m
Side ASide C
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9 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
10 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
11 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
12 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
13 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
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14 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
15 RRB ATLAS Progress Report, CERN-RRB-2006-109
Pixel Layer-2 – half shell
Pixel Layer2, once clamped, outside
Pixel Layer2, once clamped, inside
Ready for installation date is 1st April 2007
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16 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
17 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
18 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
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19 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
20 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
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21 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
22 RRB ATLAS Progress Report, CERN-RRB-2006-109
Correlation betweenLAr Middle & Front layer
Event display from the first LAr + Tile Calorimeter barrel cosmics run
23rd October 2006
23 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
24 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
25 RRB ATLAS Progress Report, CERN-RRB-2006-109
August 2006 saw the firstcombined MDT + RPC+ Tile Calorimetercosmic ray muon run
RPC trigger on sector-13
23rd October 2006
26 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
27 RRB ATLAS Progress Report, CERN-RRB-2006-109
First TGC ‘Big-Wheel’ assembled in the cavern early September 2006
23rd October 2006
28 RRB ATLAS Progress Report, CERN-RRB-2006-109
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)
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29 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
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31 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
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32 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
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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
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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)
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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
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37 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
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38 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
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39 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
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40 RRB ATLAS Progress Report, CERN-RRB-2006-109
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)
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41 RRB ATLAS Progress Report, CERN-RRB-2006-109
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42 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
43 RRB ATLAS Progress Report, CERN-RRB-2006-109
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
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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
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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 %
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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
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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
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•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)
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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’
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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
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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
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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
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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!
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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
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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)
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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/)
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