ATLAS-UK Tracker Upgrade OverviewR.Nickerson Programme StatusI.Wilmut [hat 2] WP2Peter Phillips WP3Bart Hommels WP4Tim Jones WP5Craig Buttar [hat 3] B180Todd Huffman IrradiationPaul Dervan

o Purpose o International Programme o Interaction with ITK, LSWG, IWG, SWG,.. o Top Level Deliverables o Schedule Comments

Purpose o Central Tracker will be scrap in ~7-8 years o Physics will demand replacement  Study new physics in detail  Or extend discovery range  Or both o Detail of design possibly/probably influenced by results  Much will not be  Basic requirements unlikely to be  Proceed using sensible assumptions  No choice as time scales very long for Inner Tracker

Barrel stave LS Interaction with ITK ITK LSWG contacts LSWG Coordinators ‘Constant’ contact Periodic reports Themed Meetings Pixels LS IBL LS Supermodule LS Forward Strip Stave LS Information Gathering Requests for information Interaction with other ITK WGs BS LS group BS LS nation 2 …. Integration WG Simulation WG Module WG Nigel Hessey Uli Parzefall Allan Clark Pixel WG ?

Fwd strip stave Barrel strip stave supermodule ‘later’ pixels International Efforts Specifications Materials Radiation Studies … IBL USA – Berkely & Brookhaven Labs + usual university groups UK KEK NIKEV Geneva Valencia DESY NOT exhaustive list!

Top level Deliverables o Practical, Inexpensive, Massless Design for Replacement Inner Tracker o Integration of UK effort into International Effort o Leading Role for UK groups (high vis). o Demonstration of UK ability to deliver substantial elements of next generation detector o Reinforcement of UK leading position with strip technology o Expand UK participation in pixel technologies and detectors Reminder of the goals of the UK programme:

Top level Deliverables To achieve these goals o Necessary work in most areas of strip tracker, but emphasis chosen to benefit from particular skill sets available. o More selective work in pixel detectors Broken into  3 strip Workpackages and 1 pixel workpackage  most work resides in these  Programmes – span workpackages  B180  Irradiation  Staves & stavelets

The top level deliverables These are final outputs which combine the efforts of the workpackages o Fully tested, fully populated, full-size stave using 250nm chipset o Advanced full size thermomechanical stave for the 130nm chipset o Electrical Stavelet for 130nm chipset with a 130nm module. o 4-chip pixel module using FEI-4 chipset o Mechanical prototype support for pixel modules o Report establishing these elements as appropriate in the context of an integrated design for the ID. These deliverables include the radiation tested sensors asics & modules, power systems, DAQ, stave cores, cooling, tapes, etc.. The component parts will be described in the WP and programme reports.

WP2: Deliverables and Key Notes DeliverableTargetStatus Modules for DC-DC Stavelet03/1150% Complete. 2 ready, 1 pending test, 1 being bonding, 1 requires hybrid debugging. Expect completion 05/11. Probe last 4 ABCN-25 Wafers04/1175% Complete. Expect completion 05/11. Modules for SP Stavelet05/11Second SP stavelet delayed pending double trigger noise studies. Key Progress Optimisation of module glue layer Reduced module noise Roll-out of hybrid and module assembly to multiple institutes Skill Transfer UK and Overseas Key Issues Breakdown of FZ1 sensors May need to be replaced Double Trigger Noise on SP modules Resolution may involve changes to tape design, extra decoupling and/or revised module hook-up 9

09/05/11 WP3: Deliverables and Key Notes DeliverableTargetStatus Test procedure and setup for production fibre, pre- and post irradiation 05/11Ongoing. Slight delay due to revised temperature requirement for fibre irradiation. First irradiation test planned for June, Specifications and evaluation test setup for the programmable power source final version 11/11On Track. Provision of Stave09 services systems: cooling, power and readout at a CERN test stand 07/11On track, work ongoing in conjunction with work on the B180 test facility 1010 Key Progress Hardware between HSIO and EOS controller, including Versatile Link completed Key Issues

WP4: Deliverables & Key Notes TaskAccomplishmentsIssues MaterialsDraft set of materials & measurements done More post-irradiation measurements on both component and sub-assemblies needed Cooling Orbital welding of s/steel demonstrated Issues for Titanium understood & progress being made. Prototype sLHC FE electronics survive welding nearby Verification of orbital welding on 2.2mm Ti (especially repeatability) Verification of immunity of 130nm Front-ends Stave Assembly Total of ~ 12 cores manufactured. Results from Thermo-mechanical stave & comparison with FEA. Stavelet cores delivered to Stave09 programme Understand co-curing & face sheet stresses (expertise?) Development of specifications for mechanical requirements in a global context Module Mounting ~ 30 modules mounted (TMS + SP Stavelet) Requirement to keep module-mounting capability during development process Future-proof design Stave Test / Shipping System Prototype thermal cycling chamber completed & in use; beginning to inform stave development. Stave(let) frames being prototyped High N 2 usage, humidity monitoring Integration In-situ welding of End-of-stave tubes demonstrated. Services module concept developed. Stave Insertion and end-of-stave region service connections need more prototyping. 06/05/201111UK Annual Review (WP4)

WP4 Deliverable Summary Deliverable and Description Target Date (original) Target Date (revised) Status Final set of material choices with fully characterised properties Nov 2011 Draft document used to identify further work Evaluation of titanium tube, spec and plans for mass manufacture May 2012 Completed for 1.8” OD tubes and work now starting for 2.2mm OD. Preparations for mass manufacture removed due to funding cut. Delivery of 1st core for suitable for 130nm ASICsDec 2012 Thermal FEA in progress. Expect 1 st design mid 2011 Deliver core suitable for 1st 130nm electrical staveMar 2013 Prototyped full scale test/shipping system with tooling to fabricate Sep 2012 Prototype stave and stavelet shipping systems being developed. Full sized Module mounting system completeJun 2012 Major components on order Complete feasibility study of strawman v14 service layout & input CERN integration group for next generation layouts. Dec /05/201112UK Annual Review (WP4)

WP4 Full Milestone List Milestone No. Work Package Milestone Description Original Date Target Date Actual Date Status M4.1WP4 Evaluation of titanium tube completed. Dec /12/10 Done. Stavelet with 1/8” titanium tubes constructed. Welding issues identified. M4.2WP4 Prototype (stavelet) test/shipping container evaluated. Dec 2011 On track. M4.3WP4 Functional prototype of full- scale module mounting system. Nov 2011 On track. International stave programme assumes module mounting capability at RAL during Need to maintain capability during system development. M4.4WP4 Final stave core selected and prototyped. May 2012 On track. Experience in the manufacture of the Thermo-mechanical stave and stavelets will be used to iterate the tooling design and subsequently manufacture a new round of prototypes. M4.5WP4 Bending and orbital welding of 2.2mm OD titanium tubes demonstrated Dec 2011 On track. Procurement of 2.2mm OD titanium tube (shared with ATLAS IBL project) completed. Tube bending / welding studies starting. Prototype tubes will be supplied to stave (and stavelet) assembly task. M4.6WP4 Define Production Frame Feb 2012 On track. Prototypes intended for 2011 stavelets M4.7WP4 Full set of measured material’s properties Nov 2011 On track. 06/05/201113UK Annual Review (WP4)

24/3/111st ATLAS Upgrade OsC14 Progress with all deliverables except mechanics IBL: TB and sensor testing in progress BUT still waiting for delivery of USBPIX Modules: Planar quad sensor design agreed FE-I4 wafers procured VTT order placed for UBM and flip-chipping Starting to discuss 3D quad module Layout studies: Lampshade geometry implemented Studies using FATRAS starting Need performance studies to determine the optimum geometry Interconnects: Discussion with ACREO for MCMD processing started In discussion with RAL bump-bonding No progress on TSVs (likely to drop) Mechanics: Programme undefined, disks vs lampshade issues BUT maybe look at disks anyway WP5: Deliverables & Key Notes

B180 Programme Test Area for irradiated sensors, modules, staves, parts Establish presence at CERN, forge links with partners Programme defined, preparation in progress Irradiation Programme Coordinate Irradiation Campaigns Establish B’ham cyclotron as useful facility Underway

Schedule Comments Not possible to accurately predict the overall build schedule requirement in the absence of completed design. However experience suggests that time available is needed, assuming a 2020 or 2021 installation.  Surface Assembly at CERN  Surface Test  Installation  Service installation/connection Very large job for current detector o Process will need to include removal of existing detector must be completed in faster time, o Implies Assembly and test will be more ‘complete’ o and will need extended surface time years on the surface with all components available 2020 – 3 = 2017, which is 6 years from now. Comparable to the time needed for existing detector. R and D urgent.