Module layout and types Two-beam module review, September 2009 Module layout and types G. Riddone for the CMWG,

Content  Introduction  Mandate and Organization  Module Types  Module Configurations  Main requirements  Milestones G. Riddone, TBM review, 15/09/2009 2

3 Module: Accelerating structures: 71406PETS: MB quadrupoles: 1996DB quadrupoles: Module: Accelerating structures: 71406PETS: MB quadrupoles: 1996DB quadrupoles: 20924

G. Riddone, TBM review, 15/09/20094 Module: 2124 Accelerating structures: 13156PETS: 6578 MB quadrupoles: 929DB quadrupoles: 4248 Module: 2124 Accelerating structures: 13156PETS: 6578 MB quadrupoles: 929DB quadrupoles: GeV  3 TeV No changes in the module design 500 GeV  3 TeV No changes in the module design

Two-beam module 5 A fundamental element of the CLIC concept is two-beam acceleration, where RF power is extracted from a high-current and low-energy beam (drive beam) in order to accelerate the low-current main beam to high energy (main beam). Accelerating structure +100 MV/m, 64 MW, 229 mm PETS -6.5 MV/m, 136 MW, 213 mm G. Riddone, TBM review, 15/09/2009

CLIC two-module WG mandate G. Riddone, TBM review, 15/09/ PURPOSE  Detailed integration of the various CLIC technical systems of the drive beam decelerators and the main beam accelerators into so called “CLIC modules”. The technical systems comprise: high-power rf structures, micron precision pre-alignment, nanometer stabilization, beam instrumentation, vacuum and electromagnets.  The module working group conducts the study and mechanical design, integration and fabrication issues, drives the cost estimate and provides feedback for other areas of the study. MAIN TASKS  Definition  overall layout,  space reservation,  number of components and their exact position and dimension  system integration; interfaces between components, interference of components  layout of special regions (drive beam turn-around loops)  Set-up and keep up-to-date the related documentation, such as parameter specifications, and 3D models.  Module integration in the tunnel, including module transport and installation in collaboration with CES WG  Coordination role for the design and construction of the so called “104 Test Modules”  Cost estimate The CMWG reports to the CTC, CTF3 Committee and RF Structure Committee.

Two-beam Modules “areas” G. Riddone, TBM review, 15/09/20097 Test Modules

Organization G. Riddone, TBM review, 15/09/ Working group with link persons for main technical systems and interfaces Working group with link persons for main technical systems and interfaces Collaborators Technical systems - RF: I. Syratchev, W. Wuensch, R. Zennaro, - RF instrumentation: F. Peauger, R. Zennaro - Beam instrumentation: L. Soby - Vacuum: C. Garion - Magnet: M. Modena - Pre-alignment:. F. Lackner, H. Mainaud-Durand, T. Touzé - Stabilization: K. Artoos, A. Jeremie - Structure supports: N. Gazis J. Huopana, R. Nousiainen - Beam feedback: H. Schmickler - Integration: A. Samoshkin D. Gudkov; - Tunnel and Transport: J. Osborne, K. Kershaw Technical systems - RF: I. Syratchev, W. Wuensch, R. Zennaro, - RF instrumentation: F. Peauger, R. Zennaro - Beam instrumentation: L. Soby - Vacuum: C. Garion - Magnet: M. Modena - Pre-alignment:. F. Lackner, H. Mainaud-Durand, T. Touzé - Stabilization: K. Artoos, A. Jeremie - Structure supports: N. Gazis J. Huopana, R. Nousiainen - Beam feedback: H. Schmickler - Integration: A. Samoshkin D. Gudkov; - Tunnel and Transport: J. Osborne, K. Kershaw Interface to Beam physics: D. Schulte Transfer lines: B. Jeanneret Radiation issues: S. Mallows Interface to Beam physics: D. Schulte Transfer lines: B. Jeanneret Radiation issues: S. Mallows CEA/Saclay CIEMAT DUBNA/JINR HIP/VTT LAPP Pakistan, NCP PSI UPPSALA University of Manchester ….. CEA/Saclay CIEMAT DUBNA/JINR HIP/VTT LAPP Pakistan, NCP PSI UPPSALA University of Manchester …..

Module systems and interactions 9 Cooling system Assembly, Transport and Installation Vacuum system RF system Beam instrumentation system Magnet system / Magnet powering system Supporting system Stabilization system Alignment system Beam feedback system G. Riddone, TBM review, 15/09/2009 Beam physics Civil engineering and service Machine protection and operation Cost and schedule Stabilisation WG

Activity flow 10 Baseline for CDR Module design and system integration Module design and system integration Technical system design TestsTests Test modules (lab, CLEX) Alternatives are also studied with the aim of improving performance and/or reduce cost Alternatives G. Riddone, TBM review, 15/09/2009 RF and beam dynamics constraints Definition of technical requirements

Module types and numbers G. Riddone, TBM review, 15/09/ Type 0 Total per module 8 accelerating structures 8 wakefield monitors 4 PETS 2 DB quadrupoles 2 DB BPM Total per linac (3 TeV) 8374 standard modules Total per module 8 accelerating structures 8 wakefield monitors 4 PETS 2 DB quadrupoles 2 DB BPM Total per linac (3 TeV) 8374 standard modules DB MB

Module types and numbers G. Riddone, TBM review, 15/09/2009 Total per linac (3 TeV) Quadrupole type 1: 154 Quadrupole type 2: 634 Quadrupole type 3: 477 Quadrupole type 4: 731 Other modules - modules in the damping region (no structures) - modules with dedicated instrumentation - modules with dedicated vacuum equipment - … Total per linac (3 TeV) Quadrupole type 1: 154 Quadrupole type 2: 634 Quadrupole type 3: 477 Quadrupole type 4: 731 Other modules - modules in the damping region (no structures) - modules with dedicated instrumentation - modules with dedicated vacuum equipment - … 12 Type 3 Type 1 Type 2 Type 4

Two-beam Module configurations G. Riddone, TBM review, 15/09/ Configuration #1  the accelerating structures are formed by four high-speed milled bars which are then clamped together, and the PETS bars and couplers are all clamped and housed in a vacuum tank  alternative BASELINE Configuration #2  the ACS are made of discs all brazed together forming a sealed structure, and the PETS are made of octants and “mini-tanks” around the bars  adopted as baseline

Two-beam module, TYPE 1 14 Technical system design is not an isolated activity  boundary conditions shall be defined together with other systems and module integration System integration A. Samoshkin System integration A. Samoshkin G. Riddone, TBM review, 15/09/2009

Accelerating structures G. Riddone, TBM review, 15/09/  Acc. structure (CLIC G, D: 140 mm)  Structure (brazed disks) with “compact” coupler [fabrication: superstructures x2]  Wakefield monitor (1 per AS)  Cooling circuits  Vacuum system  Interconnection to MB Q  Structure support (alignment)  Output waveguide with RF components (eg. loads) WFM SUPPORT VAC ION PUMP SPACE RESERVED FOR VAC SYSTEM WAVEGUIDE TO AS COOLING TUBE LOAD CMF SPLITTER A S

PETS G. Riddone, TBM review, 15/09/  PETS (CLIC note 764)  Structure (8 octants) with “compact” couplers  Minitank for structure  On-off mechanism (20 msec OFF, 20 sec ON)  Cooling circuits (size for 0.5% beam loss)  RF distribution to AS  Vacuum system  Interconnection to BPM  Minitank support (fiducialisation) MINI-TANK SUPPORT COOLING TUBE ON-OFF MECHANISM SPACE RESERVED FOR VACUUM SYSTEM WAVEGUIDE TO AS PETS - BPM INTERCONNECTION

Some requirements G. Riddone, TBM review, 15/09/  Accelerating structure pre-alignment transverse tolerance 14 um at 1  (shape accuracy for acc. structures: 5 um)  PETS pre-alignment transverse tolerance 30 um at 1  (shape accuracy for PETS: 15 um)  Main beam quadrupole:  Pre-alignment transverse tolerance 17 um at 1   Stabilization (values at 1  ):  1 nm > 1 Hz in vertical direction  5 nm > 1 Hz in horizontal direction  Module power dissipation : 7.7 kW (average) (~ 600 W per ac. structure)  Vacuum requirement: mbar D. Schulte W. Wuensch, H. Mainaud-Durand N. Gazis, R. Nousiainen D. Schulte W. Wuensch, H. Mainaud-Durand N. Gazis, R. Nousiainen K. Artoos, H. Mainaud-Durand H. Schmickler K. Artoos, H. Mainaud-Durand H. Schmickler R. Nousiainen C. Garion EDMS# EDMS# EDMS# EDMS# /17

A. Andersson Some requirements G. Riddone, TBM review, 15/09/ L. Soby M. Modena Ph. Lebrun EDMS# Limited space for BPM integration: 60 to 100 mm 1 BPM per Q, 1 WFM per AS,(RMS position error 5 μ m) DB: ~ devices; MB: ~ devices Limited space for BPM integration: 60 to 100 mm 1 BPM per Q, 1 WFM per AS,(RMS position error 5 μ m) DB: ~ devices; MB: ~ devices MB: The magnets are needed in four different magnetic lengths, namely 0.35, 0.85, 1.35 and 1.85m. In the baseline design, the beam pipe is attached to the magnet. The beam pipe centre needs to be aligned to the magnetic centre of the quadrupole with an accuracy of better than 30 μ m. EDMS# DB: The quadrupole active length is specified to 0.15 m. total number of quadrupoles needed for both decelerators is about EDMS# Beam/RF instrumentation Magnets Major cost driver : ~ 35 % of total cost DB

Tunnel integration G. Riddone, TBM review, 15/09/ Clear interconnection plane requirement is being included in module integration design work  space for inter-girder connection: 30 mm Power dissipation and temperature stability constraints directly influence the sizing of cooling and ventilation systems Transport and installation have to be considered in the early stage of the design Study in collaboration with CES WG Module design has a strong impact on tunnel dimensions K. Kershaw M. Nonis, J. Osborne K. Kershaw M. Nonis, J. Osborne

Milestones G. Riddone, TBM review, 15/09/  Module review now  Baseline for CDR  CLIC workshop (oct 2009): recommendations from the module review will be reported together with the action plan  Module baseline design: Q  Test modules in the lab: 2010 – 2011 [includes FP7 activities]:  Test modules in CLEX