Stato di CMS
• MAGNETE
•ECAL
•TRACCIATORE
•INSTALLAZIONE
•RIVELATORE PER MUONI (DT-RPC) (Fabrizio-Pino)
•COMPUTING (Paolo)
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
1
Produzione delle bobine
Modulo CB-2 (100%); CB-1 (98%);
CB0 82%; CB+1 (49%); CB+2 (26%)
CB0: after winding
CB+1: 1
month to
completion
CB+2
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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Trasporto di CB-2
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
3
Esercizi di installazione al CERN
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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Stato della produzione
Non ci sono stati ulteriori problemi. La
produzione prosegue per ora in maniera
regolare. Rispettati i tempi previsti negli
ultimi tre mesi.
CMS Modules construction
100
CB-2
100 %
CB-1
98 %
CB0
82 %
CB+1
49 %
CB+2
26 %
Frazione
Completata 72 %
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
Fraction completed (%)
Coil ready
80
60
40
20
0
Aug/7/01
Mar/26/02
Nov/13/02
Jul/2/03
Feb/19/04 5
Oct/7/04
Magnet schedule
Delivery of last module at CERN -> 30 Sept 2004
Completing cold mass : thermal shields, superinsulation,
suspension rods, closing vacuum tank = 8 months -> 30
May 2005
Swivelling operations -> March 2005
Cool magnet : 1,5 months -> 15 July 2005
Magnet test : 2,5 months -> 30 Sept 2005
Field mapping: 1 month -> 30 Oct 2005
Starting lowering of Magnet -> November 2005
HF can start slightly before
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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ECAL - Produzione Cristalli
•Serissimi NUOVI problemi nella produzione di cristalli (SCHEDULA DI
CONSEGNA E COSTI).
•Fabbrica ferma da due mesi per gravissimi problemi finanziari. Nessun
cristallo consegnato negli ultimi due mesi.
•Richiesti altri 13M$ PER COMPLETARE IL SOLO BARREL (24.000
cristalli consegnati fino ad ora; ne restano da consegnare 36.000 per
completare il barrel e ne occorrono altri 16.000 per gli End-Cap)
•Situazione instabile a livello amministrativo e politico in Russia (cambio
di ministri).
•CMS da solo non e’ in grado di risolvere la situazione: richiesto l’aiuto
del CERN e delle agenzie finanziatrici.
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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DG statement to MB
The DG recognizes that ECAL (including the EndCaps), is a fundamental component of CMS and
must be constructed in time for the first physics run.
The first priority must be considered the schedule of
a successful completion of the experiment.
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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ECAL in MB I
The MB endorses the following strategy
- Pursue vigorously the establishment of additional sources of supply and take all
possible measures to maximize their capacity.
- Take all necessary steps to obtain additional guarantees through political
pressure and financial incentives for the fulfillment of the remaining production
- Seek ways to minimize the cost of the remaining crystals production while
maintaining the schedule.
- Explore how the Russian Federation can contribute to crystals production by
making an in-kind contribution.
- Enter into an interim period that is 6 months long. During this period, agree to a
compromise price, restart & produce 6000 crystals. Use the interim period to
carry out the above and search for sufficient resources to complete the crystal
calorimeter. Prepare an overall plan that can be presented to the Oct 2004 RRB.
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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Cristalli cinesi: SIC (Shanghai Institute of Ceramics)
50 Endcap size crystals received in January
Results are very encouraging. Strong improvement compared to 2001
Specifications fulfilled (except dimensions, which are easy to solve)
Light yield larger than BCTP by 30%
More tests are going on (CERN, Caltech, ETHZ, IC) on radiation hardness
Further irradiations
Study of uniformity after irradiation
Detailed emission spectra
Measurement of R (signal/monitoring) Aim to finish these tests by end of
March
May need a test in beam (June?)
In parallel , discussions with SIC on technical aspects ( like cutting),
production capacity, price,… 200 more crystals already ordered
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
10
ECAL in MB II
The MB gives the following guidance to the ECAL project.
Follow the clear priority of ensuring the delivery of first the Barrel, then
the Endcaps and finally the Preshower.
The aim is to deliver a complete crystal ECAL. The plan should clearly
demonstrate enough contingency to deliver at least a complete working
barrel in time to close CMS in April 2007.
This will require procurement of all barrel crystals by Q2-2006 and of the
endcap crystals by Q2-2007.
Until the situation of barrel crystals production is clarified, new commitments
on EE/ES should only be made on a case-by-case basis.
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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Elettronica di read-out
FE board
Trigger
GOH
QPLL
5 VFE
Boards
(MGPA
+AD1240
+ Buffer)
CCU
Readout
GOH
FENIXes
LVR board
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
25 channels ECAL Trigger Tower
12
Elettronica di read-out
All engineering runs of ASICs have been submitted, wafers received for 3 (out of 4)
and sent for packaging
AD41240: new version tested and reaching specification performance
MGPA
FENIX
CRTALL (BUFFER,QPLL, CRT4T,LVDSMUX, DCU, LVDSBUF)
The Buffer is the critical path for tests this year
A new version of the VFE board to validate the final layout of the board for noise
performance has been successfully tested last week on SM1 in Bg 867
Tender for VFE boards launched last week
Prototypes of Off-detector electronics (Data, Control) available: System Review
planned for May 5th
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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Electronics planning 04
Week #
Month
23 24 25 26 27 28
29 30 31 32
June
33 34 35 36 37 38 39 40
August
September
VFE Board
Design
Assemble first PCBs
Functional Tests
Assemble N PCBs
Com Buffer
Functional Tests
FE Board
PCB Fabrication
Assemble 20 PCBs
Functional Tests
Assemble 100 PCBs
Functional Tests
Integration and Commissioning of SM
Integrate First module
1 2 3 4
Integrate SMs
November
Final Buffer
1
2
3
4
1
2
3
4
5
6
7
8
9
1
SM1
Commission SMs
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
2
3
4
1
SM2
1
2
3
4
5
SM1
Test in beam
Dec
October
July
Commission First module
41 42 43 44 45 46 47 48 49 50 51 52
6
2
3
4
3
4
5
SM3
1
2
6
SM2
SM1
1 2 3 4? ?
14
Test beam 2003
TDR performance (<50MeV noise/channel) reached last year with 50 channels MGPA.
Plan is to have a full SuperModule (1700 channels) in beam by the end of September.
We need to study in depth several Supermodules (sent a memo to SPS coord. Asking
for 12weeks of beam between Apr and Oct 06 )
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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Tracciatore: costruzione TIB ( sensori HPK)
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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Sensori ST: classificazione dei sensori
To understand influence of sensor quality on module
quality sensor grading was introduced:
Grade AA
Grade A
Grade B
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
total current < 1.5 µA (no kink in IV!)
total current < 1.5 µA
Total current > 1.5 µA
18
Example of grading (W7B sensors)
1.5 mm
AA
A
Kink in
IV curve
B (different scale)
1.5 mm
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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Quality of new production modules
150 modules produced and tested in the US
(101 modules longtime tested for 8-12 hours with thermal cycles)
136 modules inside specifications
11 modules show CMN problem (1 after thermal cycling)
3 modules fail for other reasons
(openings in aluminum, -20 C operation)
In addition - in a special run - 8 modules were built using 9 sensors
with DI > 1.5 mA to test the correlation between DI and the
common mode noise
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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Module 5081
Sensors
23974205
23974314
Channels
20 at 300 V
30200020005081
Bias Current (nA)
2500
2000
Current(DB)
1500
Current(probing)
1000
Current(Bonded)
500
0
0
100
200
300
400
500
Voltage
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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CMN modules and sensor grading
Sensor
2001-2
2002-3
Total
2003
Grade
#
CMN
%
#
CMN
%
#
CMN
%
#
CMN
%
GRADE A+
32
1
3.1%
4
1
25.0%
12
0
0.0%
48
2
4.2%
GRADE A
42
2
4.8%
11
1
9.1%
16
1
6.3%
69
4
5.8%
GRADE B
22
3
13.6%
10
2
20.0%
1
0
0.0%
33
5
15%
Total
96
6
6.2%
25
4
16%
29
1
3.4%
150
11
7.3%
150 modules built: 7% (11) show CMN noise problem
Grade B sensors develop in 15% CMN
Grade AA and A develop in about 5% CMN
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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ST conclusions
On a certain fraction of sensors the leakage current is varying.
The reasons are:
mishandling
mechanical deformations
sensitivity to humidity
degradation of the leakage current with time?
A correlation of this current variations with failures on modules
exists.
With the latest sensors used in this present production and the
sensor grading AA and A the rate of modules developing a CMN
problem is about 5%.
No test has been found for the moment to further decrease this fraction.
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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Actions
An amendment of the contract with ST has been signed to reduce the scope
of the contract from 18000 to 11000 sensors
A contract for 7000 sensors is being placed with Hamamatsu (Finance
Committee 17-3-04)
A production of 1000 sensors – representative of the 2004 production – will
be done by ST and will be fully tested by CMS
Formal decision on the acceptance of the sensors (if fully compliant with the
Technical Specifications) will be given before continuing with ST sensor
production
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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Schedule for Thick Sensors
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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Schedule v34
Revise planning to maintain a coherent picture in the face of several
simultaneous unwelcome developments which adversely affect the
assembly & commissioning schedule.
Delays to the immediate (surface) critical path: Coil
Yoke services
DT/RB installation
Delays to the underground critical path(s)
Civil Engineering
ECAL
Tracker
Most of the short-term delays can be hidden in the shadow of the Civil
Engineering delay. (~3 months). Accepting this forces the contingency of
omitting both EE/SE endcaps from the April 2007 configuration.
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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v34.0 Schedule wrt v33.3
• US and UX area delivered to CMS
May 04, Oct 04
+2, +3 mo
• Magnet test on surface
Aug 05
+ 4.5 mo
• “Ready for crates in USC”
Jul 05
+ 1.0 mo
• Start Lowering CMS
Dec 05
+ 3.5 mo
• ECAL barrel EB+ installation
Dec 05
+ 4.5 mo
• ECAL: last EB- installation & cabling
Nov 06
+ 3.5 mo
• Tracker installation + cabling start
Aug 06
+ 3.5 mo
• Beam-pipe Installation
Jan 07
+ 3.5 mo
• Det/Trig/DAQ Integration and Commissioning
Oct 06-Apr
Dt = - 3.5 mo
• CMS ‘Working Detector’ ready to close for beam
Apr 07
• CMS closed for beam :assumed date
mid May 07 *
After Shutdown
• Pixel Tracker
Jul 07 (Nov 07)
• EE/SE installation
May 07 (Nov 07)
‘ready for installation’ milestones to be set 3 mo ahead of installation start date
* +0.0 mo from previously unscheduled pre-beam machine ‘shakedown’, perhaps more?
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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Input
-revisions from Yoke services, Muon barrel & endcap, HCAL, Civ Eng, Tracker.
-assumptions for ECAL:
last EB + supermodule
crystals at CERN
: 28 Feb 05 ?
ready for installation: 31 Aug 05
start installation
: 01 Dec 05
last EB- supermodule
crystals at CERN
: 30 Apr 06?
ready for installation : 30 Sep 06
start installation
: 01 Nov 06
EE + 2’nd dee
crystals at CERN : 31 Aug 06?
ready for installation: 30 Apr 07
start installation
: 15 Oct 07 (1 May 07)
EE – 2’nd dee
crystals at CERN
: 31 Dec 06?
ready for installation : 31 Aug 07
start installation
: 15 Nov 07
request for test beam in 2006(or 2005?) and 2007 made to SPS coord
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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Changes to schedule: yoke wheels (DT/RB)
9000 new boards to re-manufacture
~5000 to replace in completed chambers
use earlier improved board in YB+2 only
--> revised installation sequence
RPC manufacturing sequence changed
take account of revised start dates for installation of DT/RB packages:
lower part YB+2 May 04
remainder YB+2 Sep 04
(RPC availability for changed sequence)
YB+1
Nov 04
YB 0
Mar 05
(DT HV review early April)
YB-1
May 05 & Dec 05
YB-2
Jul 05 & Dec 05
Guido_Tonelli
/ Gruppo or
1/ Roma/5-6
Aprile 2004
parallel
extended
shift working may be needed
29
v34.0 comments
• completion of the + end before lowering remains a highest priority
• exploit working on + end in UX (critical path) and part of –end in SX
• allow for late arrival of EB- in several batches, with last few SM’s installed
after the Tracker is already in place, with EB & Tracker cabling finalised apart
from the missing sectors. (exploit EB maintenance scenario)
• allow for pre-cabling the Tracker to PP1 and a dummy TEC end-plate.
(removal of this and insertion & cabling of the real Tracker is equivalent
to a Tracker removed maintenance operation)
• critical path timespan for beampipe installation & bake-out to be checked
• optimise configuration to continue work after 1 April during machine 30check.
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
TOTEM-CMS
Outcome of a meeting last week (Karsten Eggert + CMS management)
TOTEM has separate runs for stot
TOTEM will run as a CMS sub-detector for lumi calibration and diffractive physics.
TOTEM prefers a GEM design for T2, but, recognising CMS preference
for silicon design, will endeavour to prove by end 04 that the GEM design will
perform up to 1033.
An agreement on joint operations is needed, along the lines of that
proposed by CMS, but without encouraging groups to join CMS to build T2
TOTEM wishes to remain a separate collaboration, but eventual closer integration
of TOTEM and CMS can be discussed later.
pre-meeting Mon 22 Mar, meeting with LHCC referees Tues 23 Mar 08:30
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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Conclusioni
Il mare è in tempesta, il fasciame scricchiola e le vele
sembrano strapparsi ad ogni raffica ma potrebbe andare
ancora peggio…….
potremmo incappare in qualche iceberg!
NON CI SIAMO ANCORA ADDOSSO MA CI STA VENENDO
INCONTRO
Guido_Tonelli / Gruppo 1/ Roma/5-6 Aprile 2004
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