ID ASSO – SCT Production StatusM. Tyndel 117-Dec-2002 ATLAS SCT Production Status Alex Grillo...
-
Upload
emory-watkins -
Category
Documents
-
view
218 -
download
1
Transcript of ID ASSO – SCT Production StatusM. Tyndel 117-Dec-2002 ATLAS SCT Production Status Alex Grillo...
ID ASSO – SCT Production Status M. Tyndel 117-Dec-2002
ATLAS SCT Production Status
Alex Grillo
Overview Procurement
Silicon detectors ASICs
Barrel & Endcap modules On-detector services PP1
DCS Optical LM tapes (Power & sense lines) Cooling
Barrel & Endcap support structures Power & Readout
Power supplies (LV & HV) Readout, DAQ & DCS Services PP3,PP2,PP1
SCT integration & installation Schedule
ID ASSO – SCT Production Status M. Tyndel 217-Dec-2002
ATLAS SCT Overview
Barrel 4 cylinders Interlinks Thermal screen
Endcap-C 9 disks Support structure Thermal screens
Endcap-A 9 disks Support structure Thermal screens
20K detectors to cover ~ 60 m2
60K ASICs (x128 readout channels) 4K modules; r~23m; z ~0.5mm
4K low mass cables & optolinks 250 LM cooling circuits; power ~ 40KW Low mass, stable C structure @ -10oC Barrels, disks, X-ray survey, in-situ FSI 8K readout channels; DAQ & DCS 40 collaborating institutes; 45MSFr
Power system (via PP3, PP2, PP1) LV (FE power) HV (Detector bias)
Readout & DAQ (via PP2?,PP1) Cooling (ID – interface @ PP1) Services & DCS
ID ASSO – SCT Production Status M. Tyndel 317-Dec-2002
SCT Procurement – Silicon sensors
Production, acceptance testing & irradiation QA of the silicon detectors is ahead of schedule
Quality is excellent with acceptance testing in the institutes keeping up with production
Delivery (including an allowance for losses during assembly) will be completed this year
ID ASSO – SCT Production Status M. Tyndel 417-Dec-2002
SCT Procurement – FE ASICs (ABCD)
Production,acceptance testing & irradiation QA of FE ASICs is well advanced.
Yield has been variable with an integrated average of ~26%
Final production wafers (including an allowance for loses during assembly) are ordered
Recent yields are low. Reason & impact on the project under study
Irradiate samples from batches & modules with ASICs to 3 1014 p/cm2 throughout production
ID ASSO – SCT Production Status M. Tyndel 517-Dec-2002
SCT Barrel modules
Production schedule
Based on experience to-date the schedule has been revised with the following milestones:
10% complete Feb 03
50% complete Sep 03 100% complete Mar
04
Supply of components (detectors, baseboards, hybrids, ASICs) under control.
Target module production rates not yet achieved – will be reviewed at PAR ( spring 03)
ID ASSO – SCT Production Status M. Tyndel 617-Dec-2002
SCT Barrel modules – Hybrids & baseboards
Hybrids Baseboards
ID ASSO – SCT Production Status M. Tyndel 717-Dec-2002
SCT Barrel modules - assembly
Module assembly sites Japan
Qualified (5 modules in spec) + Production at ~ 2modules/day
Module assembly sites
UK-B Qualified (5 modules in spec) + Now at ~1module/day 3/day 50 by Jan 03
USA Completing Qualification Production starting 3/day 40 by Jan 03
SCAND Completing Qualification Production starting 1/day 10 by Jan 03
Goal is to complete module assembly by Mar 2004 (target)
ID ASSO – SCT Production Status M. Tyndel 817-Dec-2002
SCT End-cap modules
Background:
The K4 End-cap module was found to be unstable
The hybrid was redesigned & 16 K5 modules (outer, middle, inner) were built . They were stable and within specification pre-irradiation
The post-irradiation performance after 3 1014 p/cm2 (just) meets the specification. ( S/N performance is ~10% worse than for barrel )
Pre-production batch of 100 K5.1 hybrids are in production. First 2 modules irradiated; 4 more evaluated.
PRR on Dec 9 has given green light for production
ID ASSO – SCT Production Status M. Tyndel 917-Dec-2002
SCT End-cap module system test
ID ASSO – SCT Production Status M. Tyndel 1017-Dec-2002
SCT End-cap module production
The hybrid assemblies are produced in industry with ASICs supplied by ATLAS
The spines are assembled by Protvino
The fanins are produced by CNM (Barcelona)
The three shapes of modules will be assembled and tested in 7 institutes/clusters
UK Valencia MPI Nikhef Freiburg Geneva/CERN Melbourne
ID ASSO – SCT Production Status M. Tyndel 1117-Dec-2002
SCT End-cap Module production schedule
1. Pilot run to release industrial production (100 K5.1 in production)
2. Assembly site qualification (needs to be efficient)
3. Order components (hybrids, spines, fanins, washers, glue)
4. Module assembly/QA will take about 1.5 years
ID ASSO – SCT Production Status M. Tyndel 1217-Dec-2002
SCT Services - Power distribution
Modularity 1 4088 cables
ID ASSO – SCT Production Status M. Tyndel 1317-Dec-2002
SCT On-detector services
Interfaces between the modules & PP1 Off-detector: LM tapes & PP1 for the power
In production in Ljubljana• First batch ready to be shipped to
Taiwan• PP1 ready in mid Jan
Optopackages and control electronics Doric & VDC ASICs produced Optopackages are in production in
Taiwan Barrel harnesses
Will be assembled in Taiwan End-cap harnesses
Will be assembled in Taiwan Optical fibres
Rad hard fibre purchased• Needs ‘cabalisation’ – at tender stage
Endcap harness
ID ASSO – SCT Production Status M. Tyndel 1417-Dec-2002
SCT On-detector services
Barrel dogleg
ID ASSO – SCT Production Status M. Tyndel 1517-Dec-2002
SCT Cooling Pipes
Interface between the modules & PP1 Capillaries/Heaters ID evaporative cooling:
LM cooling circuits. The circuits for Barrel-3 and Disk-9 are in production
Full production will follow Cooling FDR
But -
Metallurgical analysis has indicated that the grain size is critical & 100m pipe has been ordered as a fall-back
A stringent QA procedure with thermal stressing is being initiated.
The interfaces are not finally specified:• Capillaries
• Exhaust heaters
• System parameters
ID ASSO – SCT Production Status M. Tyndel 1617-Dec-2002
SCT Barrel Sector
ID ASSO – SCT Production Status M. Tyndel 1717-Dec-2002
SCT Support Structures
End-caps 2 x 9 Carbon fibre discs
First discs expected at Nikhef ~ now Machined & equipped with pads at Nikhef 2 Support cylinders & wings
Being manufactured Thermal shields
Barrel 4 Carbon fibre cylinders Machined when delivered
First barrel delivered Geneva B6 ready to be shipped;B4 & 5 in Jan 03
Equipped with pads & module brackets Interlinks will connect all 4 barrels Thermal shields
ID ASSO – SCT Production Status M. Tyndel 1817-Dec-2002
SCT Endcap Support structure
ID ASSO – SCT Production Status M. Tyndel 1917-Dec-2002
SCT Services Installation
The first part of the SCT to be installed are the services
Urgent to finalise design, routing and place orders• Cables (Type II, III and IV)
• All cables prototyped; use LHC market survey (+ some non-member state companies)• Tender in January to enable production to finish in Summer 2004
• Fibers (Readout, Control & FSI): • Readout/control fibers produced. Will order protective cable when PP2 position final)
• Patch Panels: • PP3: finalize design and define location
Type routing number lengthCables:
power/control Type II PPF(B)1-PP2 4098 45 kmpower/control Type III PP2-PP3 4098 90 kmpower/control Type IV PP3-UA15/USA15 4098 250 kmDCS
PipesN2
Fibersreadout/control PP(B/F)1-PP2-UA15/USA15 12294 1200 kmFSI 24 km
ID ASSO – SCT Production Status M. Tyndel 2017-Dec-2002
SCT Services Installation
176 PPB1 per side – serving 6 modules (half-stave) each, arranged staggered in 2 positions along cryostat bore
Type II cables in 16x48-cable and 8x36-cable bundles along bore joined by 988 LM Tapes in 16x3 bundles from end-cap at z~2800
PPF1 at cryostat bore-flange corner – EC transition to Type II cables
PPF1PPB1 Type II
LM Tape
ID ASSO – SCT Production Status M. Tyndel 2117-Dec-2002
SCT Services Installation
Type II length7.9 – 11.7 m
Bunches per side
No. of Cables From
16 62 EC
16 48 B
8 36 B
ID ASSO – SCT Production Status M. Tyndel 2217-Dec-2002
SCT Services Installation
Cable Routing I
To USA15
To UA15
Type IIIType IV
ID ASSO – SCT Production Status M. Tyndel 2317-Dec-2002
SCT Barrel Integration
Individual barrels are delivered to the SR building, CERN.
Acceptance tests at CERN are done in the shipping container.
Thermal screens & 4 barrels are assembled with no further tests
The barrel SCT (4-barrel assembly) is installed into TRT and then tested and surveyed (x-ray)
ID ASSO – SCT Production Status M. Tyndel 2417-Dec-2002
Attach air-con units Remove side panels, visual inspection (incl. Video record) Replace panels, reconfigure ends, attaching all cables, services. Test R/O fibres and FSI Leak test cooling system Operate DCS, measure T, hum. Seal ends, add thermal insulation. Attach and test N2 supply, measure leak rate, monitor humidity and run
until dry. Operate cooling system, monitor DCS, ensure correct operation Check module operation according to test specification (on EDMS) 6 – 8 Weeks/barrel (some parallelism possible)
SCT Barrel Acceptance
ID ASSO – SCT Production Status M. Tyndel 2517-Dec-2002
Complete End-caps arrive in temporary thermal enclosure with all services up to PPF1
Acceptance test is performed on individual disks
Installed into final thermal enclosure with wings and tested and (possibly) surveyed
Wing removed, inserted into TRT and retested
SCT Endcaps Integration
ID ASSO – SCT Production Status M. Tyndel 2617-Dec-2002
SCT Endcap Tests before arriving to CERN
During Disk assembly: Before mounting modules:
Leak test cooling Check power and opto connections using dummy hybrids Temperature cycle the disk
After mounting modules, test full wheel, at room and low temperature: Thermal tests – look for unusual thermal gradients on modules Electrical tests
Results go into database As disks go into endcap:
Leak tests of cooling Electrical tests of modules Room temperature and cold
When endcap completed, crosstalk checks (on at least one endcap): Two disks at a time Quarter-endcap (quadrants)
ID ASSO – SCT Production Status M. Tyndel 2717-Dec-2002
SCT End-cap acceptance at CERN
Unpack, clean, move into testing area Open temporary thermal enclosure, make visual inspection. Close the Thermal Enclosure Working 1 disk at a time:
Connect cooling pipes, perform warm leak tests with gas, pressure and vacuum Attach PP1Ts Connect power tapes and DCS twisted pairs; check environment temperatures Test HV connections and IV (a few points at least) before cool-down at 20o C:
Power cable connections HV control and monitoring DCS
Connect and test FSI fibres Connect optical readout fibres
Switch on cooling and module power – (not clear yet if ~room temp is possible) If cold, need well-defined, automated start-up/cool-down procedure to keep
temperatures above dew point at all times. Lab-View version of this exists now in B186 system-test.
Check/monitor module and environmental temperatures
ID ASSO – SCT Production Status M. Tyndel 2817-Dec-2002
Acceptance Tests
Electrical tests: Full characterisation, i.e.
Bypass test Redundancy test Pipeline test Strobe delay test Three-point gain measurement Trim scan Response Curve measurement Noise occupancy scan Time-walk measurement
Noise occupancy vs. time Steady? Any spikes? Maybe not necessary for all disks
Cross-check results with those from module and wheel-assembly testing Warm up (if running cold), disconnect all cables/fibres
Ideally do all this, but may have to scale back depending upon time available.In red = minimal set of tests
ID ASSO – SCT Production Status M. Tyndel 2917-Dec-2002
Attach all PP1Ts, make all connections (pipes, power tapes etc.) Check environment temperatures Check HV DCS and monitoring Connect and test FSI fibres Switch on cooling and readout
monitoring temperatures and humidities Noise scans, cold, on full end-cap:
NO, ENC Cross-check with previous results
Cross-talk and common-mode checks X-ray survey possible here, but preferable to do once inside TRT Full FSI system test, confirming that all reflectors are aligned Warm up Remove front wing before insertion into TRT
SCT Endcaps Acceptance – in Thermal enclosure
ID ASSO – SCT Production Status M. Tyndel 3017-Dec-2002
SCT - Equipment for Acceptance Tests
Cold dry nitrogen supply Equipment for leak testing Test equipment for one disk (132 modules) (in zone 1) & for complete barrel
(in test area). DAQ:
• ROD etc.
• PC
• VME crate control
• software HV, LV with DCS control DCS interlocks, environmental monitoring etc. Cooling system, with pipes from PPF1 Cables, fibres PPF1 crates
ID ASSO – SCT Production Status M. Tyndel 3117-Dec-2002
SCT schedule & milestones
http://hepwww.rl.ac.uk/ppdstaff/Tyndel/Schedules/SCT_Nov02v10.mpp
Critical issues: Target
ASIC yield Feb 03 Placing the EC hybrid order & the start of EC module assembly Dec 02 Start machining of disks & equipping with Services-First disk by Feb 03 Delivery of End-caps
Achieve full production rate of barrel modules in all clusters Feb 03 Need opto-harnesses produced & tested for barrel-3 Feb 03 Need cooling circuits produced & tested for barrel-3 Feb 03 Commission C4F10 cooling for assembly sites Apr 03
Finalise the design parameters of the cooling system Nov 02 Finalise PP3 design, cable lengths & launch order Apr 03