Perspectives for ILC Si-Tracker mechanics work at Oxford aka It’s looking grim unless … PS: This is an individuals view 19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold 1

The three questions (in a nutshell) 1.What to do if ILC plan is announced on Jan ? a)What if they call the ILC CLIC instead b)Consider: vertex and tracker detector designs, fabrication and MDI. c)Consider national and international context. d)be explicit 2.How do FCC ee and pp options affect tracker work? a)consider simulations of detector and physics case. 3.Which LHC-LC synergies (FCC) would you like to develop 19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold 2

BACKGROUND 19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold 3

“Georg’s funding view” Future funding for HEP will be more constraint – No more “waves of money” on which single projects can swim into construction phase – No CERN sponsored RD-X wave to fund a decade of R&D – Flat cash from STFC throughout the next CG Minute amounts for ILC detector R&D in next CG 19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold 4

Long term strategy at Oxford? Long term (10 years) Plan = Large Tracking Detector Mechanics Group: – Same people form core team on LHC  LHC upgrade  ILC  CLIC  FCC  mu-C you name it: core expertise is shared in person not just on paper – Facilities in department expand to become more universal (don’t just serve one experiment) longer lived (outlive one experiment) supported by core team in the long term – “Large Tracker” because that ability sets us aside from others in UK and Europe and all future collider detector will have a large and a small tracker more people want to do vertex than large tracker – Note: large trackers can include “aggressive” versions of CMOS MAPS 19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold 5

Current EU developments AIDA2 (Oct yrs) contains proposal for “Thermo- mechanical test facility for Si tracker structures at Oxford” Merge the following into one facility – ATLAS tracker integration facilities (cold/dry room, cold box, cooling systems, grey room, ESPI, capacitive displacement sensors) – 32 channel absolute distance FSI system (AMULET) – Thermal Imaging system – Shaker table – New deformation measurement tool (Liverpool)? Refurbish the space as much as possible Get an EU funded post doc to run the facility Invite collaborators to use some time in it for their tracker development problems (which may also be our problems!) 19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold 6

Current UK developments LCUK detector branch is returning from funding shock induced coma One aspect of SOI to re-vive LC detector program contains a “Silicon Activity” Focus is on “We request funding for a programme leading to the design of a silicon pixel tracking detector in the forward and central regions. …. potential to provide increased performance with lower mass and lower cost than the current baseline tracking technologies.” 19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold 7

Current UK developments We will assess contending pixel technologies and simulate potential pixel architectures. We will address the engineering challenges posed by power and cooling requirements, develop models with realistic material distributions, and use them as input to physics performance studies. The level of support required per year is estimated to be – £15k for coordination of the silicon programme through national and international meetings and facilities, – £15k for mechanical and design support from RAL TD, – £8k for access to CEI expertise at the Open University, and – £10k for mechanical test structures, prototypes and testing equipment. – A total of XX staff years of effort will additionally be provided from institutes through existing funding. 19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold 8

Current UK developments RoleInstituteFTE/year Cost £k/year or alternate funding Electronic Engineering RAL TD OU EFI0.258 Mechanical EngineeringLiverpool0.2CG Detector PhysicistOxford0.2CG Simulation PDRAGlasgow0.2University Academic LeadershipVarious~0.2CG/PPD 19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold 9 I.e. no money in the short term but decent strategic match

ANSWERS 19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold 10

Three “Answers” 1.ILC tracker mechanics involvement only possible if started “parasitically” (Richard does not like the word synergy) a)In CG bid for the “tracker mechanics group” with three branches, ATLAS, LHC-B, ILC and admit that the ILC fraction consists largely of overlap with the other two 2.Stay out of FCC-ee option as it threatens the more interesting LC options a)now mention of FCC-pp option on next RG for tracker mechanics (too much diversity kills, we are under manned) 3.Synergies in mechanics best found in very advanced methods (integrated large micro channels, advanced CFRP designs, advanced geometries, integration of services, Assemblability) 19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold 11

BACKUP SLIDES 19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold 12

LHC similarities to ILC (SiD) tracker SiD tracker wants X0 per layer at 90 degrees – < 1% for silicon tracker (5 layers), σ r*φ = 12 (SCT=17 µm) – < 0.3% for vertex (5 layers), σ r*φ = 4-7 µm similarities between SiD tracker and SCT upgrade Current default cooling is air but nobody knows how to cope with vibrations from required turbulent flow 19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold 13

14 3.3m 2.5m 19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold

From Similarities to Strategy Which R&D direction might give – the ultimate ILC silicon tracker i.e. thin, stiff, modular – possibly be useful for SCT upgrade (if finished in time) Need to be very aggressive on – geometry: high areal moment of inertia installation modules possibly spanning multi layers (think in 3D shapes) advanced geometries (the football) – materials: UHM CF with novel cores – cooling: bi-phase kapton micro-channels – sensors: 50 micron thin CMOS maps – services: multi layer Aluminium-Kapton tapes – full integration: co-cure cooling, services and structures 19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold 15

Next CG period (Oct 2015-Sep 2019) LHC-B upgrade in LS2 (done in 2018) SCT-upgrade in LS3 (expected 2021 or 2023) – in production mode by (2016 or 2018) – if its 2018 they may be able to cash in some new technology ILC time lines detector production phase start ? (details next slide) “Real” R&D towards ILC detector next CG should start inside next CG and ramp up 19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold 16

19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold 17 Hitoshi Yamamoto, PASCOS 2013, November 22, 2013, Taipei

– need to become extremely “professional” about large construction projects to reduce project risks  design for installation; no more glue guns! – need to pass infra structure and expertise across “generations” to accumulate enough to do any project – make our LHC inherited capital equipment future proof 19/06/2014 2nd Oxford Strategy Meeting, Silicon Mechanics, Armin Reichold 18