Status and Schedule
M. Della Negra
US CMS Collaboration Meeting
Florida State University, 11 May 2002
Civil Engineering and Magnet
Updates on sub-detectors status
Finances
Schedule and Milestones
Experimental Cavern
UXC UXC55
More than 50% complete
UXC55 ready July 04
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USC
Service Cavern USC55
More than 50% complete
USC55 ready March 04
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Swiveling Platform (Korea)
Assembly finished at Pt. 5 Swiveling
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Platform
4
Swiveling test in 2002
A counterweight will be installed to simulate the equivalent weight
and momentum due to the cantilevered 250 t of the Cold Mass
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Status of Conductor
Each length is 2650m long
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Winding Prototype
Full diameter 6m
1/4 length ~0.6m
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4 layers winding using spare
length of 2.65km –
progressing well
7
CB-2 mandrel ready
Coil is made of 5 submodules
CB-2, CB-1, CB0, CB+1, CB+2
Mandrel for CB-2 is finished
~6 months late – problem with
supply of special elements in
high strength alloy for mandrels,
plates and flanges.
CB-2 completed end 02
CB+2 completed end 03
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Compressors for Cryogenics at point 5
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Tracker Outer Barrel Module
Hybrid
with ST sensors
APV
• 50% of Si Strip Tracker budget committed
• Si modules from the Milestone 200 produced in different production centers
• Start of Si module production shifted from June 2002 to Nov. 2002 due to hybrid
optimization (safer design and cost).
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Production Hybrids
First 4 received, flex cable
ok !!!
20 + 20 ordered, delivery
½ May
All mechanical test up to
now are ok
Specifications ready by
25/5
Going to tender asap
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Outer barrel rod fully equipped for system test
First small sub-system (outer barrel ‘rod’) equipped with modules
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Beam Pipe EDR and Pixel installation
EDR went well and pixel
installation was proven to be
compatible with our
expectations.
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Crystals and Photodetectors
All 138 ovens at BTCP modified
to grow large boules
Offers in hand for endcap xtals
APDs
20
Expected rate of 5000 APDs/month reached.
25k out of 130k APDs delivered
VPTs
First 500 production VPTs delivered
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ECAL: Mechanics
Module assembly
Endcap ‘Supercrystal’
Assembly of modules for first
supermodule (SM1) started in
CERN and Rome.
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EE EDR mid-2002
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Supermodule Assembly
Assemble a few ‘bare’ SMs in 2002
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ECAL Electronics
CMS and LHCC Reviews in 2001 revealed major cost overruns in electronics
Last RRB: Double speed of optical links – half cost of links – BUT insufficient
Action - Mar 02: Alter electronics architecture to contain costs – generate L1
trigger primitive (S25 xtals) on-detector rather than off-detector – reduce links and
off detector electronics by factor ~ 10. FPPA: Final submission May02
Electronics team reorganised, synergy between ECAL, Tracker & Preshower
electronics
TDR
TP
91000 Data and Control Links
800 Off-detector Trig/DAQ Boards
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12000 Data and Control Links
120 Off-detector Trig/DAQ Boards
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ECAL Planning
Goal: Apr 07 - ECAL complete and commissioned
Advance the detailed test (also system test) of 1st SM to mid-2003 (final
analog electronics + emulated FPGA digital part)
EB electronics mounted in 2004/2005 – calibrate at least 9 SMs in 2004
EE and SE mounted in 2005/2006, calibrate 1 Dee in 2006
Electronics Schedule
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Evolution of CMS Data Acquisition
New modular design of Event Builder - Break into a number of
functionally identical, parallel, smaller DAQ systems
A 64x64 system is feasible today
Submit DAQ TDR end-02
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High Level Trigger
Lvl-1 trigger in construction phase now
HLT running in processor farm – immense amount of data generated –
exercising remote sites
Detailed analysis leads to < 400> ms/event (on a “PIII @ 700 MHz box”)
Maximum flexibility: full event data available;
using offline software (very important to understand HLT performance)
In terms of “2007” CPU units, this is 3*1.5 years away.
CPU needs should be within reach
A 50kHz system at startup will need ~ 2500 CPU’s
N(CPU) = (0.4 sec x 50000 sec-1)/(2*2*2)= 20000/8 = 2500
CPU time/evt
L1-rate
Moore’s law
At (staged) startup: 50kHz @ Lvl-1 and 80Hz to storage
Discovery physics “safe”. SM physics: ~ resource-driven
High luminosity: in DAQ TDR at end-2002
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Construction: Commitment Profile
Apr 02 RRB
By end of 2002 ~70% of the available funds will have been committed.
62.7 MCHF of additional funds need to be committed soon in order to have a
complete initial low luminosity detector in 2007.
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~20 MCHF Staging/Savings ?
After RRB13 the Director of Research requested CMS to prepare plans for the
case where 20 MCHF of the shortfall is not covered (with respect to the RRB13
shortfall of 67.9 MCHF) BUT with the hope of getting it later.
Staging/Saving already applied for 1st Physics Run
HCAL:
ME1/1a:
ME4/1:
Reduce no. of longitudinal samplings
Reduce no. of electronics channels
re-stage electronics
2.0 MCHF
1.5 MCHF
1.5 MCHF
Additional Staging Considered for 1st Physics Run
TRIDAS:
Start with 50% of DAQ Capacity
Infrastructure: SCX Cooling and Ventilation Plant
Use 400Hz, 400V system
Decision in June 2002.
TOTAL Staging/Savings
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~8.5 MCHF
8.0 MCHF
0.5 MCHF
Additional Saving Under Technical Evaluation
LV Supplies:
~5 MCHF
~5 MCHF
5.0 MCHF
~ 18.5 MCHF
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Additional Collaborators
Serbia
Corner Pieces Magnet
Milan, INFN
Naples, INFN
ECAL
RPCs
Brazil
YE4+ farm
Ireland
ECAL electr.?, farm
Mexico
NZ
Silicon Tracker
farm+Pixels
Thailand
US-NP (HI)
ME electronics boards
TriDAS, farm
approved in Mar CMS Week
400 kCHF protocol agreement
approved in Mar CMS Week
approved in Mar CMS Week
YE4 funded (500 kCHF),
application in 2002
Visited CERN 18-19 Feb
Expect application in mid-02
Expect application soon
Applic. received, Pres. in June
Visit at CERN S. Thompson
in progress
Successful workshop in MIT 8.02
Proposal submitted to DoE March 15
0.9 MCHF already in Financial Plan.
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High Luminosity Upgrades
10.
Items (upgrades) for high luminosity
~ 19 MCHF
10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.8
ME4/2 mechanics and electronics
ME4/1 electronics
ME4/1 assembly in PNPI
Restore ME1/1a electronics
Neutron Shielding (extra)
3rd Forward Pixel Layer
5th endcap RPC layer
Extra Installation Costs
9.2
1.5
0.5
1.5
1.0
~2.5
~2.0
~1.0
The decision to build many of these items will only be taken after
inspection of the first physics data. This upgrade cost comes on top of
the 62.7 MCHF shortfall. A plan for the funding of the upgrade will have
to be worked out in due time. Basic ingredients are new collaborators or
upgrade plans by funding agencies willing to upgrade items in which
they have been working on.
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April RRB (RRB14) Outcome
M&O MoU accepted, proceed with signatures
M&O cat A 2002 Budget accepted (1 MCHF with sharing according to nb
of PhDs). No request for in kind contributions in 2002.
M&O Cat B: Must work out a way to share costs (by Oct RRB)
C&I costs accepted (positive report by scrutiny group). C&I profile peaks in
2003. Cash flow? 50% of C&I is manpower.
CMS Financial Plan well received. Expect ~ 54 MCHF additional funds for
a shortfall of 62.7 MCHF.
Next step - Reach an agreement with Agencies by end June 02 on likely
availability of funds (firm, less firm promisies), amounts and time profiles.
Then prepare Financial Plan for Oct RRB (also discuss during LHCC CMS
CR in Oct02)
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Expectations for additional funding at RRB14
Guideline
Austria
Belgium
Brazil
Bulgaria
CERN
China
Croatia
Cyprus
Estonia
Finland
France CEA
France IN2P3
Germany
Greece
Hungary
600.
870.
500.
106.
13500.
700.
49.
106.
16.
870.
1000.
4000.
2703.
880.
58.
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Expect
600.
300.
500.
13500.
700.
49.
870.
660.
2000.
2703.
Guideline
Expect
India
Iran
Italy
Korea
Pakistan
Poland
Portugal
RDMS
Serbia
Spain
Switzerland
Taipei
Turkey
UK
USA
774.
500.
12900.
458.
428.
528.
352.
2250.
400.
1350.
300.
500.
12900 req.
410.
58.
1530.
15000.
1530.
12800.
TOTAL
62896.
54264.
352.
2250.
400.
1350.
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V33 Draft Schedule: Extended Surface Phase
Additional costs part of C & I
Objectives:
channel test of HV/LV
burn-in of electronics
flushing gas
readout test of 10% of subdet
(MB,ME, RB etc)
vertical slice tests
with test-beam DAQ &
prototype final DAQ
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v33 Draft Schedule
A new planning v33 is in preparation for the next LHCC comprehensive
review.
Objective: Complete CMS (except pixels and ME4) for 1 April 2007
• UX and US area ready (+12 months shift, now firm date)
• Install floor plates and shielding in UX area
• Magnet test on surface (+9 months shift)
• Start lowering CMS
• ECAL Barrel (EB) ready for installation (+ 4 months)
• Start EB installation + cabling (3 months float)
•Tracker ready for installation
• Start Tracker installation + cabling (3 months float)
• EE+ (ECAL endcap positive z-side) calibration in SPS beam
• Start EE+ installation
• Start EE- installation
• CMS closed ready
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Jul 04.
Nov 04- Apr 05
Jan 05- Apr 05
May 05
Jul 05
Nov 05
Oct 05
Feb 06
Apr 06- Sep 06
Nov 06
Jan 07
Apr 07
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Conclusion
Magnet: Yoke finished. Conductor and winding well advanced. 1st coil delivered
end 02 with 6 months delay. Not critical:
HCAL, Endcap Muons : construction on schedule and well advanced.
Problems are being encountered but are also being overcome.
To watch
Production rate of DTs and RPCs – need to watch production rate
Start of mass assembly of Si modules (Q4 2002)
ECAL: Redesign of electronics chain. Very tight schedule.
Draft v33 CMS Schedule
Magnet test on surface Jan 05- Apr 05. Start lowering detector in May 05.
CMS closed ready for 1’st beam 1st April 07.
CMS construction is proceeding at speed.
A low luminosity detector can be ready for physics in 2007.
The low luminosity detector is the complete CMS detector, except the 4th forward
muon station (ME4) and the 3rd forward pixel layer.
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