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21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 1 Status of the ILC, issues for the LCTPC design and their feedback.

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Presentation on theme: "21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 1 Status of the ILC, issues for the LCTPC design and their feedback."— Presentation transcript:

1 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 1 Status of the ILC, issues for the LCTPC design and their feedback to the R&D program OUTLINE of TALK Overview ILCOverview ILC LCTPC Design Issues in the DODsLCTPC Design Issues in the DODs Next steps:Next steps: More work with Small Prototypes (SP)More work with Small Prototypes (SP) Build the Large Prototype (LP)Build the Large Prototype (LP) LCTPC  R&D plansLCTPC  R&D plans OUTLINE of TALK Overview ILCOverview ILC LCTPC Design Issues in the DODsLCTPC Design Issues in the DODs Next steps:Next steps: More work with Small Prototypes (SP)More work with Small Prototypes (SP) Build the Large Prototype (LP)Build the Large Prototype (LP) LCTPC  R&D plansLCTPC  R&D plans

2 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 2 LDC/GLD/4th Concepts or A TPC for a Linear Collider Detector

3 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 3 The Global Design Effort Formal organization begun at LCWS 05 at Stanford in March 2005 when Barry became director of the GDE Technically Driven Schedule ACFA’07 Beijing: RDR(+cost), DCR

4 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 4 International Linear Collider Aug 2004: Technology decision: COLD superconducting à la TESLA chosen Baseline: 200 GeV < √s < 500 GeV Integrated luminosity ~ 500 fb -1 in 4 years 80 % e- beam polarisation Upgrade to 1TeV,  L = 1 ab -1 in 3 years 2 interaction regions Concurrent running with the LHC from 2015

5 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 5 Physics Overview @ Snowmass’05 by Peter Zerwas

6 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 6

7 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 7 e.g.with precision measurements of the Higgs e.g.with precision measurements of the Higgs Expt (GeV)Decay Channel (GeV/c 2 )ln(1+s/b) 115 GeV/c 2 1ALEPH206.74-jet114.31.73 2ALEPH206.74-jet112.91.21 3ALEPH206.54-jet110.00.64 4L3206.4E-miss115.00.53 5OPAL206.64-jet110.70.53 6Delphi206.74-jet114.30.49 7ALEPH205.0Lept118.10.47 8ALEPH208.1Tau115.40.41 9ALEPH206.54-jet114.50.40 10 OPAL205.44-jet112.60.40 Goal: to revisit the Higgs… Goal: to revisit the Higgs…

8 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 8

9 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 9 The value of precision measurements…

10 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 10 Polarization Multipole expansion

11 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 11

12 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 12 Where are we with the Higgs? CERN Courier, Nov 2005

13 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 13 Why do we think these indirect, precision meas. are telling us anything??? CERN Courier, Nov 2005 :

14 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 14 SUperSYmmetry Symmetry between Fermions  Bosons (Matter)(Force carriers)...now we have doubled the particle spectrum...

15 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 15... BUT solves several SM problems: ♥ Link to gravity ♥ lightest SUSY particle stable  Dark matter candidate ♥ Solves fine tuning problems ♥ Predicts light Higgs ♥ Unification of forces Supersymmetry Energy in GeV with Supersymmetry without Supersymmetry 1 TeV

16 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 16 From my talk at the Arlington LC Workshop January 2003:

17 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 17 Need highest luminosity Precision for 1 ab -1 :

18 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 18 10 -3

19 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 19 2018 2019 2021 2024 +y 2027 +y 25 ILC

20 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 20

21 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 21 HISTORY 1992: First discussions on detectors in Garmisch- Partenkirschen (LC92). Silicon? Gas? 1996-1997: TESLA Conceptual Design Report. Large wire TPC, 0.7Mchan. 1/2001: TESLA Technical Design Report. Micropattern (GEM, Micromegas) as a baseline, 1.5Mchan. 5/2001: Kick-off of Detector R&D 11/2001: DESY PRC proposal. for TPC R&D (European & North American teams) 2002: UCLC/LCRD proposals 2004: After ITRP, WWS R&D panel Europe Chris Damerell (Rutherford Lab. UK) Jean-Claude Brient (Ecole Polytechnique, France) Wolfgang Lohmann (DESY-Zeuthen, Germany) Asia HongJoo Kim (Korean National U.) Tohru Takeshita (Shinsu U., Japan) Yasuhiro Sugimoto (KEK, Japan) North America Dean Karlen (U Victoria, CAN) Ray Frey (U. of Oregon, USA) Harry Weerts (Fermilab, USA) GOAL To design and build an ultra-high performance Time Projection Chamber …as central tracker for the ILC detector, …as central tracker for the ILC detector, where excellent vertex, momentum and where excellent vertex, momentum and jet-energy precision are required jet-energy precision are required

22 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 22 LCTPC/LP Groups (19Sept06) Americas AmericasCarletonMontrealVictoriaCornellIndianaLBNL Purdue (observer) Europe LAL Orsay IPN Orsay CEA Saclay AachenBonnDESY U Hamburg FreiburgMPI-Munich TU Munich (observer) RostockSiegenNIKHEFNovosibirskLundCERNAsiaTsinghuaCDC:HiroshimaKEK Kinki U SagaKogakuin Tokyo UA&T U Tokyo U Tsukuba Minadano SU-IIT Other groupsMIT MIT (LCRD) Temple/Wayne State (UCLC) YaleKarlsruhe UMM Krakow Bucharest

23 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 23 -5-5 Large Detector Concept example 3x10 -5.30Particle Flow (N.B. below are TDR dimensions, which have changed for latest LDC iteration)

24 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 24 GLD LDC HCal ECal TPC

25 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 25 Physics determines detector design « momentum: d(1/p) ~ 10 -4 /GeV(TPC only) ~ 0.6x10 -4 /GeV(w/vertex) ~ 0.6x10 -4 /GeV(w/vertex) (1/10xLEP) (1/10xLEP) e + e -  ZH  ll  X goal: M  <0.1x   e + e -  ZH  ll  X goal: M  <0.1x       dominated by beamstrahlung     dominated by beamstrahlung  tracking efficiency: 99% (overall ) excellent and robust tracking efficiency by combining vertex detector and TPC, each with excellent tracking efficiency excellent and robust tracking efficiency by combining vertex detector and TPC, each with excellent tracking efficiency

26 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 26 Are TPC’s Good for Tracking? ZH events Standalone TPC reconstruction (LD design) Dan Peterson, Cornell Answer: Yes. Gaseous Tracking R&D Next questions: what about resolution, ion feedback, track separation resolution, neutron backgrounds?

27 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 27 Motivation/Goals Continuous tracking throughout large volume ~98% tracking efficiency in presence of backgrounds Timing to 2 ns together with inner silicon layer Minimum of X_0 inside Ecal (<3% barrel, <30% endcaps) σ_pt ~ 100μm (rφ) and ~ 500μm (rz) @ 3,4T for right gas if diffusion limited 2-track resolution <2mm (rφ) and <5-10mm (rz) dE/dx resolution <5% Full precision/efficiency at 30 x estimated backgrounds Motivation/Goals Continuous tracking throughout large volume ~98% tracking efficiency in presence of backgrounds Timing to 2 ns together with inner silicon layer Minimum of X_0 inside Ecal (<3% barrel, <30% endcaps) σ_pt ~ 100μm (rφ) and ~ 500μm (rz) @ 3,4T for right gas if diffusion limited 2-track resolution <2mm (rφ) and <5-10mm (rz) dE/dx resolution <5% Full precision/efficiency at 30 x estimated backgrounds

28 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 28 R&D program gain experience with MPGD-TPCs, compare with wires study charge transfer properties, minimize ion feedback measure performance with different B fields and gases find ways to achieve the desired precision investigate Si-readout techniques start electronics design for 1-2 million pads study design of thin field cage study design thin endplate: mechanics, electronics, cooling devise methods for robust performance in high backgrounds pursue software and simulation developments R&D program gain experience with MPGD-TPCs, compare with wires study charge transfer properties, minimize ion feedback measure performance with different B fields and gases find ways to achieve the desired precision investigate Si-readout techniques start electronics design for 1-2 million pads study design of thin field cage study design thin endplate: mechanics, electronics, cooling devise methods for robust performance in high backgrounds pursue software and simulation developments

29 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 29 R&D Planning R&D Planning 1) Demonstration phase –Continue work with small prototypes on mapping out parameter space, understanding resolution, etc, to prove feasibility of an MPGD TPC. For CMOS-based pixel TPC ideas this will include proof-of-principle tests. 2) Consolidation phase –Build and operate the Large Prototype (LP), Ø ~ 80cm, drift ~ 60cm, with EUDET infrastructure as basis, to test manufacturing techniques for MPGD endplates, fieldcage and electronics. LP design is starting  building and testing will take another ~ 3-4 years. 3) Design phase –During phase 2, the decision as to which endplate technology to use for the LC TPC would be taken and final design started.

30 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 30 What have we been doing in Phase 1 ?

31 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 31

32 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 32 Gas-Amplification Systems: Wires & MPGDs  GEM: Two copper foils separated by kapton, multiplication takes place in holes, uses 2 or 3 stages Micromegas: micromesh sustained by 50μm pillars, multiplication between anode and mesh, one stage S1 S1/S2 ~ Eamplif / Edrift P~140 μm D~60 μm S2

33 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 33 Pixel TPC Development Nikhef Freiburg

34 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 34 Examples of Prototype TPCs Examples of Prototype TPCs Carleton, Aachen, Cornell/Purdue,Desy(n.s.) for B=0or1T studies Saclay, Victoria, Desy (fit in 2-5T magnets) Karlsruhe, MPI/Asia, Aachen built test TPCs for magnets (not shown), other groups built small special-study chambers

35 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 35Facilities Saclay 2T magnet, cosmics Kek 1.2T, 4GeV hadr.test-beam Desy 1T, 6GeV e- test-beam Desy 5T magnet, cosmics, laser Cern test- beam (not shown) EUDET

36 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 36 TPC R&D summary to date Now 4 years of MPGD experience gathered Gas properties rather well understood Limit of resolution being understood Resistive foil charge-spreading demonstrated CMOS RO demonstrated Work starting for the Large Prototype TPC R&D summary to date Now 4 years of MPGD experience gathered Gas properties rather well understood Limit of resolution being understood Resistive foil charge-spreading demonstrated CMOS RO demonstrated Work starting for the Large Prototype

37 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 37 Phase 2 LP should be a prototype for the LC TPC design and test as many of the issues as possible (like, e.g., TPC90 @ Aleph). This will take at least 2 iterations, we call them LP1 and LP2. Basic Idea: LP should be a prototype for the LC TPC design and test as many of the issues as possible (like, e.g., TPC90 @ Aleph). This will take at least 2 iterations, we call them LP1 and LP2. The Eudet infrastructure gives us a starting basis for the LP work The Eudet infrastructure gives us a starting basis for the LP work The general LCTPC/LP R&D issues and been divided up into workpackages (WP)  more later… The general LCTPC/LP R&D issues and been divided up into workpackages (WP)  more later… Phase 2 LP should be a prototype for the LC TPC design and test as many of the issues as possible (like, e.g., TPC90 @ Aleph). This will take at least 2 iterations, we call them LP1 and LP2. Basic Idea: LP should be a prototype for the LC TPC design and test as many of the issues as possible (like, e.g., TPC90 @ Aleph). This will take at least 2 iterations, we call them LP1 and LP2. The Eudet infrastructure gives us a starting basis for the LP work The Eudet infrastructure gives us a starting basis for the LP work The general LCTPC/LP R&D issues and been divided up into workpackages (WP)  more later… The general LCTPC/LP R&D issues and been divided up into workpackages (WP)  more later…

38 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 38 Performance –Momentum precision needed for overall tracking? –Momentum precision needed for the TPC? –Good dE/dx resolution, Vº detection –Requirements for 2-track resolution (in rφ and z)? track-gamma separation (in rφ and z)? –Tolerance on the maximum endplate thickness? –Tracking configuration Calorimeter diameter TPC Other tracking detectors –TPC OD/ID/length

39 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 39 LCTPC resolution in the DODs

40 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 40 Physics determines detector design « Momentum resolution: d(1/p) ~ ????? e + e -  ZH  ll  X e + e -  ZH  ll  X  couplings,    ?  couplings,    ?  Redo study at  s = 220 GeV and using vertex constraint! and using vertex constraint! BIG ISSUE!

41 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 41 Prototype Results Point resolution, Gem --Three examples of σ_pt measured for Gems and 2x6mm^2 pads. --First, in Desy chamber (triple Gem), resolution using “triplet method”. --Second, in Victoria chamber (double Gem), unbiased method used: track fit twice, with and without padrow in question, σ determined for each case; geometric mean of the two σ’s gives the correct result. --See next page… 30cm B=4T Gas:P5

42 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 42 ACFA8--July2005

43 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 43

44 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 44

45 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 45

46 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 46 Performance –Momentum precision needed for the TPC  –What is the best we can do?

47 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 47 Keisuke Fujii, PRC report

48 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 48 Momentum resolution needed … “Club sandwich” possible in GLD because of large size. We will study performance & feasibility of this option in case the momentum precision is required.

49 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 49 LC TPC Endcaps

50 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 50 GLD Akira Sugiyama GLD Akira Sugiyama

51 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 51 Arrangements of detectors on the active area of the end cap (2/2) Trapezoidal shapes assembled in iris shape Annotations: Px is the type number of PADS boards or frames Page 2 By rotation of 15° around the axe, these frames are the same P1 12 sectors (30° each) as super modules are defined On each, 7 modules are fixed The sizes of detectors are varying from 180 to 420 mm P2P3 P4 P2 P3 P4 These arrangement seems to be the best as only 4 different PADS are necessary LDC RS/Joel Pouthas/Philippe Rosier LDC RS/Joel Pouthas/Philippe Rosier

52 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 52 Aleph endplate

53 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 53

54 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 54

55 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 55 Some features Zigzag structure prevented loss of tracks > θ~22° Sectors mounted from inside using a “handling tool” to minimize the dead space between sectors. This straight-forward operation which was performed at least 30 times during the lifetime of Aleph. Alu sandwich structure stiff, lightweight to - contain 7mb overpressure - provide forced-air thermal insulation between electronics and TPC volume Water cooling of 1kW electronics/side in addition - 22K channels per side Combination water/air cooling blocked all heat to TPC Overall thickness ~ 25%Xo (average) w/o cables Bending of endplate -20 micrometers due to 7mb overpressure - 5 micrometers due to wire tension

56 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 56 Design –Gas-amplification technology  input from R&D projects –Chamber gas candidates: crucial decision! –Electronics design: LP WP Zeroth-order “conventional-RO” design Is there an optimum pad size for momentum, dE/dx resolution and electronics packaging? Silicon RO: proof-of-principle –Endplate design LP WP Mechanics Minimize thickness Cooling –Field cage design LP WP

57 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 57 Backgrounds/alignment/distortion-correction –Revisit expected backgrounds –Maximum positive-ion buildup tolerable –Maximum occupancy tolerable –Effect of positive-ion backdrift: gating plane –Tools for correcting inhomogeneous B-field or space charge effects in bad backgrounds

58 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 58 LC TPC Chamber gas (b) Ion buildup

59 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 59 LC TPC Chamber gas (c) ion backdrift/gating

60 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 60 LC TPC Electronics

61 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 61 LC TPC Backgrounds

62 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 62 This is for infrastructure for detector R&D, but not yet the R&D itself, to which all of the TPC R&D groups will have to contribute if the LP is going to be successful. This will provide a basis for the LC TPC groups to help get funding for the LP and other LC TPC work.

63 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 63 Work Packages for the LCTPC/LP 0) Workpackage: TPC R&D program/performance goals To be worked out by the LCTPC collaboration Work Packages for the LCTPC/LP 0) Workpackage: TPC R&D program/performance goals To be worked out by the LCTPC collaboration

64 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 64 Work Packages for the LCTPC/LP 1) Workpackage MECHANICS Groups expressing interest to date(others?) a) LP design (incl. endplate structure) Cornell, Desy, IPNOrsay, MPI, +contribution from Eudet b) Fieldcage, laser, gas Aachen, Desy, St.Petersburg, +contribution from Eudet c) GEM panels for endplate Aachen, Carleton, Cornell, Desy/HH, Karlsruhe, Kek/XCDC, Novosibirsk, Victoria d) Micromegas panels for endplate Carleton, Cornell, Kek/XCDC, Saclay/Orsay e) Pixel panels for endplate Cern,Freiburg,Nikhef,Saclay,Kek/XCDC, +contribution from Eudet f) Resistive foil for endplate Carleton, Kek/XCDC, Saclay/Orsay Ron Settles Dan Peterson Ties Behnke Akira Sugiyama Paul Colas Jan Timmermans Madhu Dixit convener in white color

65 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 65 Work Packages for the LCTPC/LP 2) Workpackage ELECTRONICS Groups expressing interest to date(others?) a)"Standard" RO/DAQ for LP: Aachen, Desy/HH, Cern, Lund, Rostock, Montreal, Tsinghua, +contribution from Eudet b) CMOS RO electronics: Freiburg, Cern, Nikhef, Saclay, +contribution from Eudet c) Electr.,powerswitching,cooling Aachen, Desy/HH, Cern, Lund, for LC TPC: Rostock, Montreal, St.Petersburg, Tsinghua, +contribution from Eudet Leif Joennson Leif Joennson + ? Harry van der Graaf Luciano Musa

66 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 66 Work Packages for the LCTPC/LP 3) Workpackage SOFTWARE Groups expressing interest to date(others?) a) LP SW+simul./reconstr.framework: Desy/HH,Cern,Freiburg, Carleton, Victoria, +contribution from Eudet b) TPC simulation, backgrounds Aachen, Carleton, Cornell, Desy/HH, Kek/XCDC, St.Petersburg,Victoria c) Full detector simulation Desy/HH, Kek/XCDC, LBNL Work Packages for the LCTPC/LP 3) Workpackage SOFTWARE Groups expressing interest to date(others?) a) LP SW+simul./reconstr.framework: Desy/HH,Cern,Freiburg, Carleton, Victoria, +contribution from Eudet b) TPC simulation, backgrounds Aachen, Carleton, Cornell, Desy/HH, Kek/XCDC, St.Petersburg,Victoria c) Full detector simulation Desy/HH, Kek/XCDC, LBNL Peter Wienemann Stefan Roth Keisuke Fujii

67 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 67 Work Packages for the LCTPC/LP 4) Workpackage CALIBRATION Groups expressing interest to date(others?) a) Fieldmap Cern, +contribution from Eudet b) Alignment Kek/XCDC c) Distortion correction Victoria d) Rad.hardness of material St.Petersburg e) Gas/HV/Infrastructure Desy, Victoria, +contribution from Eudet Dean Karlen Lucie Linssen Takeshi Matsuda Dean Karlen Anatoliy Krivchitch Desy Postdoc

68 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 68 Here are some ideas for the evolution up to the Design Phase 3 (under discussion with the collab.) 2006-09: SP (small prototype) tests, LP1 = two endplates: Gem+pixel, Microm.+pixel adiabatic developm. LP1->LP1.5->LP2 2010: LP2 = real LCTPC prototype endplate: Gem or μMegas + carbon-fibre sandwich, gating grid, sector/panel shape, LCTPC electronics, gas, etc Here are some ideas for the evolution up to the Design Phase 3 (under discussion with the collab.) 2006-09: SP (small prototype) tests, LP1 = two endplates: Gem+pixel, Microm.+pixel adiabatic developm. LP1->LP1.5->LP2 2010: LP2 = real LCTPC prototype endplate: Gem or μMegas + carbon-fibre sandwich, gating grid, sector/panel shape, LCTPC electronics, gas, etc

69 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 69 TPC R&D breakdown (prel.) Gem, Micromegas, Pixel LP1@Desy Large, small, odd-shaped panels LP1@Desy Endplate alignment and stability LP1,LP2@Desy Fieldcage LP1@Desy Sandwich structure SP/LP2 Gating/max. space charge SP/LP2 ion feedback rate Point/2-track resolution LP1@Desy Momentum meas. in inhomog. B-field LP1@Desy dE/dx measurement LP1@Desy Gas studies SP Pad shapes SimulationLP1,LP2 Jet environment SP@Cern/FermiLab Beams 1-6 GeV/c electrons LP1@Desy 1-20 GeV/c hadrons (+dE/dx) LP2@Cern/FermiL 100 GeV hadrons (+jets) LP2@Cern/FermiL TPC R&D breakdown (prel.) Gem, Micromegas, Pixel LP1@Desy Large, small, odd-shaped panels LP1@Desy Endplate alignment and stability LP1,LP2@Desy Fieldcage LP1@Desy Sandwich structure SP/LP2 Gating/max. space charge SP/LP2 ion feedback rate Point/2-track resolution LP1@Desy Momentum meas. in inhomog. B-field LP1@Desy dE/dx measurement LP1@Desy Gas studies SP Pad shapes SimulationLP1,LP2 Jet environment SP@Cern/FermiLab Beams 1-6 GeV/c electrons LP1@Desy 1-20 GeV/c hadrons (+dE/dx) LP2@Cern/FermiL 100 GeV hadrons (+jets) LP2@Cern/FermiL

70 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 70 Some of the topics discussed at WP bi-weekly phonemeetings…

71 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 71AGENDA -Fieldcage for the LP (Ties Behnke, Peter Schade) -Fieldcage for the LP (Ties Behnke, Peter Schade)

72 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 72 FC length ~ 60-80 cm

73 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 73 Madhu Dixit proposes for the LCTPC electronics: -preamp 25ns Trise (10%-90%) -no shaper-integrator -25MHz 10to12-bit FADC (2-track resolution can benefit from the somewhat faster Trise if the noise is still acceptable)

74 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 74 Endplate Dan Peterson

75 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 75

76 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 76 Geometry details by Dan Peterson File:EndplateFieldCageGeometry5

77 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 77 TPC milestones 2006-2010 Continue LCTPC R&D via small-prototypes and LP tests 2010 Decide on all parameters 2011 Final design of the LCTPC 2015 Four years construction 2016 Commission/Install TPC in the LC Detector 2006-2010 Continue LCTPC R&D via small-prototypes and LP tests 2010 Decide on all parameters 2011 Final design of the LCTPC 2015 Four years construction 2016 Commission/Install TPC in the LC Detector

78 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 78 No conclusions… Backup slides…

79 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 79 Two other LC-TPC features  will be compensated by good design… ~ 50 μs drift time integrates over 150 BX  design for very large granularity: ~ 2 – 20 x 10 9 voxels (two orders of magnitude more if CMOS pixel version) ~ end caps with large density of electronics (several million pads) are a fair amount of material  design for smallest amount: ~ 30%X 0 or less is feasible design for full precision/efficiency at 30 x estimated backgrounds Two other LC-TPC features  will be compensated by good design… ~ 50 μs drift time integrates over 150 BX  design for very large granularity: ~ 2 – 20 x 10 9 voxels (two orders of magnitude more if CMOS pixel version) ~ end caps with large density of electronics (several million pads) are a fair amount of material  design for smallest amount: ~ 30%X 0 or less is feasible design for full precision/efficiency at 30 x estimated backgrounds

80 21/12/2006 Ron Settles MPI-Munich TUM Dec 2006 -- ILC, LCTPC Design Issues: R&D Planning 80 Keisuke Fujii, Takeshi Matsuda, WP mtg#2

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