1. prepared by M. Tyndel, ATLAS Plenary Jun 20021 ATLAS ID - SCT Status Report Highlights from SCT week Valencia 13-18 June uProcurement of sensors & FE ASICs u Power & Readout Õ Optical Harness Õ Power supplies Õ Readout & DAQ u Endcap modules & assembly Õ Endcap Engineering Õ Endcap Modules u Barrel modules & assembly Õ Barrel Engineering Õ Barrel Modules u Software u Schedule & critical issues

2. prepared by M. Tyndel, ATLAS Plenary Jun 20022 SCT Procurement – silicon sensors z Production & acceptance testing of the silicon detectors is ahead of schedule z Delivery will be completed this year (including an allowance for losses during assembly.

3. prepared by M. Tyndel, ATLAS Plenary Jun 20023 SCT Procurement – FE ASICs z Production & acceptance testing of FE ASICs is well advanced z Yield is lower than hoped for but acceptable ~26% z Agreement has been reached with ATMEL regarding radiation QC. z Need to purchase spares this year

4. prepared by M. Tyndel, ATLAS Plenary Jun 20024 SCT Power & Readout – Optical Harnesses z 8 pre-series barrel optical harnesses are in production u Barrel harness = Õ Patch-panel (designed) Õ Low mass tape (in production) Kapton changed to 50  m Problems with soldering now understood Yield ~85% Õ Optical fibre (purchased) Õ Doglegs (in production) Õ Optopackages (in production) 64 produced (see fig) zEndcap harnesses use the same components & production will start later this year zCritical issues are to check mechanical clearances & electrical performance on barrel sector

5. prepared by M. Tyndel, ATLAS Plenary Jun 20025 SCT Power & Readout – Optical Harnesses z Dog-leg with opto-package zCritical issues are to check mechanical clearances & electrical performance on barrel sector

6. prepared by M. Tyndel, ATLAS Plenary Jun 20026 LV&HV crate LV&HV crate LV&HV crate LV&HV crate LV&HV crate LV&HV crate LCS DCS LCS USA15 44 crates 11 racks US15 44 crates 11 racks CANbus SCT FE Power, Detector Bias & services

7. prepared by M. Tyndel, ATLAS Plenary Jun 20027 SCT FE power, Detector Bias & services z Full system specification exists – with details of all services and patch- panels z Prototype SCTLV0 card (4Ch) under evaluation (see fig). Performance meets requirements z Full crate (48 Ch) of low voltage and detector bias is planned before the end of 2002

8. prepared by M. Tyndel, ATLAS Plenary Jun 20028 Test of the LV0/4 channels with AFE2000 power pack SCT week, Valencia, 17.06.02. Plenary Session, J.Bohm, Prague AS Test with actual SCT power lines Cable resistance: 3.4-3.68 Ohm LV0/4ch PP3 Ferrite chokes PP2 Connectors PP1B 60-120m Type 4 30m Type 3 9m Type 2 SCT module LM 50µ Results LV0 with AFE2000 and LV3-VME gave the same results (1-2%) AFE2000 and linear power supply 48V are well comparable (1%) Noise is decreasing with increasing load of AFE2000 Start-up procedure worked well First test with actual SCT power line was successful; Cable resistance agreed with calculated one.

9. prepared by M. Tyndel, ATLAS Plenary Jun 20029

10. 10 HV board & back-plane Partly equipped & under test Partly equipped; Press-fit technology tested

11. prepared by M. Tyndel, ATLAS Plenary Jun 200211 SCT Readout & DAQ z SCT Readout = u RODs Õ 4 prototypes being evaluated Õ Expect pre-series of 9 x 48 Ch by end of 2002 for use during assembly u + BOCs Õ Back of crate cards which convert opto   electronic Õ Prototypes being evaluated Õ Custom opto-packages produced in Taiwan u + TIMs Õ Prototypes exist have been produced and are being evaluated. Hope for info from Dick Jared u + Crates & SBC z Production of readout (& power) is critical as it will be used during assembly

12. prepared by M. Tyndel, ATLAS Plenary Jun 200212 SCT Endcap Engineering – Support structure zDesign of the carbon-fibre support cylinders & support wings is complete and tender is about to be launched zTender for the carbon-fibre disks is complete and the order about to be placed. zThe module cooling and mounting scheme (consisting of Carbon-carbon blocks with a “wiggly” 70micron Copper Nickel cooling pipe has been prototyped & tested on the evaporative cooling rig. zDesign of the “on-disk” services and patch-panels is final and being prototyped. zA critical measurement is to validate the new K5 module with the final support & cooling structure

13. prepared by M. Tyndel, ATLAS Plenary Jun 200213 SCT Endcap modules zProblems with the stability of the EC module have been fixed. uHybrid has been re-designed and manufactured (K5) u16 modules (inner, middle, outer) have been built Õ16 have had performance measurements in the lab & are stable Õ7 have been measured in testbeam Õ6 have been measured in system test Õ2 have been irradiated zModules were built built (rapidly) in 5 sites  uK5 modules can be built reliably inside specs & on required time-scale uElectrical performance is within specification pre-irradiation uSee the same performance in the lab and system without noise injection uMore work needed to optimise immunity to noise injection

14. prepared by M. Tyndel, ATLAS Plenary Jun 200214 4 SCT EC outer modules on system test sector

15. prepared by M. Tyndel, ATLAS Plenary Jun 200215 Details of SCT modules on system test sector

16. prepared by M. Tyndel, ATLAS Plenary Jun 200216 Noise measurement results of EC System Test z2 middle and 4 outer modules measured on the system test disk zNed‘s grounding scheme zno significant difference between individual and collective operation zcommon mode noise below 150 electrons on any chip (to be added in quadrature)

17. prepared by M. Tyndel, ATLAS Plenary Jun 200217 Electrical Performance after Irradiation z2 outer modules irradiated in May, 6 days RT annealing, then testbeam zFirst results do not meet specification: uPost irradiation gain is low ~30mV/fC ÕRepeat measurements and compare with barrel; check effects of annealing uMedian charge collected is low ~ 2.7fC ÕCheck that detector is fully depleted; check effects of annealing uNoise is high ENC~2300e ÕRepeat in same test setup as barrel;check effects of annealing zResults are preliminary & will be checked before FDR; 2 more modules will be irradiated

18. prepared by M. Tyndel, ATLAS Plenary Jun 200218 Thermal Performance of SCT EC modules z3 modules thermally cycled: no significant change in mechanical or electrical properties grease contact zReproducibility checked on 4 modules zFirst thermal measurements on 1 middle and 1 inner module (non- irradiated.) agree with simulation at 10% level uFrom simulations a cooling block temp. <-13°C is required zFirst measurement of CC blocks on CuNi pipe and evaporative cooling show that this requires coolant at –24°C uAgain measurement needs checking

19. prepared by M. Tyndel, ATLAS Plenary Jun 200219 Next steps SCT EC module zComplete measurements on irradiation, cooling and grounding issues zDocument design & measurements for an FDR in Jul/early Aug zAnticipate PRR in Oct/Nov when: uOpen issues are understood uResults from hybrid tender are available u[In the meantime have ordered 100 hybrids to test industrial hybrid assembly and provide parts for module assembly commissioning and site qualification]

20. prepared by M. Tyndel, ATLAS Plenary Jun 200220 SCT Barrel Engineering zProcurement of the support structure is proceeding well u B3 delivery to CERN 28.6.02 u B6 delivery to CERN 07.8.02 u B5 delivery to CERN 10.9.02 u B4 delivery to CERN 15.10.02 z All support, cooling and assembly is being validated on 48CH sector u 48 channel cooling unit with blocks & manifolds u Brackets u Harnesses – check clearances u Problems encountered with metallurgy of thin wall CuNi pipes. Needs to be understood before assembly can start z Decision taken to increase the module tilt angle from 10 deg to 11 deg on B3 with an increase of R from 299 to 299.5mm z B3 module assembly will start in Oxford early 2003

21. prepared by M. Tyndel, ATLAS Plenary Jun 200221 Project engineer fixing brackets Dogleg + LM tape sample Dummy module QA! SCT Barrel Engineering

22. prepared by M. Tyndel, ATLAS Plenary Jun 200222 Details of the capillary and connections. Tests with evaporative cooling. SCT Barrel Engineering

23. prepared by M. Tyndel, ATLAS Plenary Jun 200223 SCT Barrel modules – now in production! Hybrids Baseboards

24. prepared by M. Tyndel, ATLAS Plenary Jun 200224 SCT Barrel modules zModule assembly sites uJapan ÕQualified (5 modules in spec) Õ40 production modules uUK-B ÕQualified (5 modules in spec) ÕProduction starting uUSA ÕQualification in progress uSCAND ÕQualification in progress zGoal is to complete module assembly by end 2003

25. prepared by M. Tyndel, ATLAS Plenary Jun 200225 Qualification module 42 Response (Gain; Offset & Noise extracted from threshold scan)

26. prepared by M. Tyndel, ATLAS Plenary Jun 200226 SCT software zMain areas of activity. uProducing simulated byte stream. (J. Schieck) uQA for Data Challenges (J. Schieck) uFilling detector description information for Event Data Model for reconstruction. (A. Fornaini + G. Gorfine) uGetting accurate detector description. Producing detector description for new software. Maintenance of G3 simulation. (G. Gorfine + J. Pater) uSimulation/checking of detector response i.e. digitization. (S. Gadomski) uPassive material in inner detector for reconstruction (C. Hansen) u(Also alignment and test beam work.) z“In good shape for meeting requirements for DC 1/Phase 2”. z… but need more people to get involved with both SCT specific software as well as common inner detector items.

27. prepared by M. Tyndel, ATLAS Plenary Jun 200227 SCT Software - Detector Description in AGDD zFull SCT detector written in Compact XML. uCompact XML basically contains primary numbers and there is C++ code to interpret these numbers. uNow close to G3 geometry. Currently verifying local to global transformations. zVal idation of G4 Geometry built from AGDD. uMaterial comparison between G3 and G4 uMaterial comparison with engineering Weight comparison SimulationEngineering SCT340 kg394 kg

28. prepared by M. Tyndel, ATLAS Plenary Jun 200228 SCT Software - Detector Response zCommon Pixel+SCT framework. zGood agreement with test beam data.

29. prepared by M. Tyndel, ATLAS Plenary Jun 200229 Quality Assurance for Data Challenges zAim: uValidate DC sample productions by insuring reproducibility at different sites. uProvide tool to test similarity of samples produced under different conditions (such as different sites). zProcedure: uTrack quality cuts uCompare efficiency uGet pull of track parameters (A o,z o,  o,cot(  ),1/p T ) uCompare with ‘default’ sample.

30. prepared by M. Tyndel, ATLAS Plenary Jun 200230 SCT schedule & Critical issues zConsiderable progress in many areas over the last year zProduction of the barrel is underway. zProcurement of most EC components underway zCritical items: u The metallurgy of thin wall CuNi pipes used for evaporative cooling. uStart-up of EC module production zNew schedule and project plan in preparation to match revised LHC and TC integration schedule zThe endcaps will be produced sequentially