Status of the CLIC module R&D G. Riddone on behalf of the CLIC module WG (special contributions from A. Samoshkin, D. Gudkov, A. Solodko, N. Gazis) LCWS11 WG8 Main requirements and types Some integration issues Two-beam module validation program

28-Sep-2011LCWS11 – WG8G. Riddone, 2 CLIC layout at 3 TeV

28-Sep-2011LCWS11 – WG8G. Riddone, 3 CLIC Module Type1 154 per Linac CLIC Module Type1 154 per Linac 1 pair of AS replaced by MB Quadrupole Standard Module (L=2010 mm) DB (100 A) 4 PETS, 2 Quads with BPM Each PETS feeds 2 AS MB (1 A) 8 acc. structures Standard Module (L=2010 mm) DB (100 A) 4 PETS, 2 Quads with BPM Each PETS feeds 2 AS MB (1 A) 8 acc. structures Standard Module 8374 per Linac Standard Module 8374 per Linac Module Type per Linac Module Type per Linac Module Type per Linac Module Type per Linac Module Type per Linac Module Type per Linac CLIC module main types

28-Sep-2011LCWS11 – WG8G. Riddone, 4 CLIC at 500 GeV (4248 modules) Accelerating structures, PETS ~ RF components CLIC at 3 TeV (20924 modules) Accelerating structures, PETS ~ RF components A. Samoshkin CLIC module type 1

28-Sep-2011LCWS11 – WG8G. Riddone, 5 It is impossible to separate the components and consider them as a system-belonging part. We are about module integrated sub-units. COOLING R F MAGNET & POWERING ASSEMBLY, TRANSPORT, INSTALLATION SUPPORTING VACUUM PRE-ALIGNMENT & STABILIZATION INSTRUMENTATION... “BPM – DBQ - PETS IC” “IC – BPM – MBQ – Dipole Corr. - IC” “PETS - RF NET - AS” “Girder - Pos. System - Stabiliz. System - Structure Support” CLIC TWO-BEAM MODULE Technical systems

28-Sep-2011LCWS11 – WG8G. Riddone, 6 The baseline solutions were defined for each technical system and a solution for CDR is available The module design and integration has to cope with challenging requirements from different technical systems. SYSTEMREQUIREMENTS R FAS shape tolerance ± 2.5 µm INSTRUMENTATION BPM resolution: MB - 50 nm, DB – 2 µm, temporal - 10 ns (MB & DB), SUPPORTING Max. vertical & lateral deformation of the girders in loaded condition 10 μm COOLING~400 W per AS MAGNET & POWERINGDB: T/m, current density: 4.8 A/mm2, MB: 200 T/m PRE-ALIGNMENT & STABILIZATIONactive pre-alignment ± 10 µm at 1σ, MB Q stabilization 1 nm >1Hz VACUUM10 -9 mbar ASSEMBLY, TRANSPORT, INSTALLATIONsame transverse interconnection plane for DB & MB Main requirements

28-Sep-2011LCWS11 – WG8G. Riddone, 7 The design of the module is driven by extreme performance requirements. For example, the assembly accuracy is ±5 µm. Many features of different systems, such as vacuum, cooling, WFM as well as damping waveguide absorbers have to be incorporated into design. The design of the module is driven by extreme performance requirements. For example, the assembly accuracy is ±5 µm. Many features of different systems, such as vacuum, cooling, WFM as well as damping waveguide absorbers have to be incorporated into design. WFM Schematic layout of CLIC Module Super-AS A S S u p e r - A S Technical system: RF COMPLEXITY Brazed disks with “compact” coupler and vacuum system (10 -9 mbar), Micro-precision assembly, cooling circuits (~400 W per AS) Wakefield monitor (1 /SAS), Interconnection to MB Q (stabilization!) Structure support (alignment) Output WG with RF components (e.g. loads) RF distribution (WGs & splitters) COMPLEXITY Brazed disks with “compact” coupler and vacuum system (10 -9 mbar), Micro-precision assembly, cooling circuits (~400 W per AS) Wakefield monitor (1 /SAS), Interconnection to MB Q (stabilization!) Structure support (alignment) Output WG with RF components (e.g. loads) RF distribution (WGs & splitters)

28-Sep-2011LCWS11 – WG8G. Riddone, 8 Demonstration of novel scheme of two beam acceleration in compact modules integrating all technical systems for RF production, beam measurement and acceleration including alignment, stabilisation and vacuum at their nominal parameters. CLIC feasibility issues

28-Sep-2011LCWS11 – WG8G. Riddone, 9 Steps towards two-beam acceleration validation Two-beam test stand (PETS and ac. structures) Prototype modules in LAB Prototype modules in CLEX Demonstration of the two-beam acceleration with one PETS and one accelerating structure at nominal parameters in CLEX Demonstration of the two-beam module design This implies the assembly and integration of all components and technical systems, such as RF, magnet, vacuum, alignment and stabilization, in the very compact 2-m long two-beam module Demonstration of the two-beam acceleration with two-beam modules in CLEX Address other feasibility issues in an integrated approach Industrialization and mass production study

28-Sep-2011LCWS11 – WG8G. Riddone, 10 PROTOTYPE TWO-BEAM MODULES IN THE LAB 10

28-Sep-2011LCWS11 – WG8G. Riddone, 11 Modules in the lab First two T0 modules are currently under construction 4 modules representative of all CLIC module types

28-Sep-2011LCWS11 – WG8G. Riddone, 12 Objectives Integration of all technical systems Validation of different types of girders and movers Pre-alignment of girders/quadrupoles in the module environment, Full metrology of the module components Validation of interconnections and vacuum systems under different thermal loads Stabilization of main beam quad in the module environment Vibration study of all systems and identification of vibration sources Measurement of resonant frequencies Simulation of several thermal cycles: and alignment verification Transport of the module and alignment verification

28-Sep-2011LCWS11 – WG8G. Riddone, 13 Prototype Model Design Firm BoostecMicro-ControleEpucret Description Drive Beam Type 0 Girded with integrated (brazed) V-shaped supports (SiC) Main Beam Type 0 Girders with integrated (glued) V-shaped supports (SiC) [complete CLIC Two-Beam Module Supporting System ] Drive Beam Girder (mineral cast) with integrated fixation features (rails, threaded inserts) for V-shaped Supports Prototype Girder Control & validation Validated with laser tracker Validated with laser tracker, CMM and autocollimator Validated with laser tracker Supporting system

28-Sep-2011LCWS11 – WG8G. Riddone, 14 AS Prototype (LAB) Standard fittings: Cooling system Copper tubes 3.Brazing of manifolds; Interface WGs; cooling adapters; 4. Brazing of 2 stacks 1005 mm long each: Includes: 4 AS with manifolds; Interconnection MB-MB; 6. Welding (EBW) of two stacks together: EBW 5. Installation of the damping material, welding of covers: Damping material From PETS Load CVT AS Interfaces From PETS 1.Brazing of disks; 2. Brazing of manifold cells;

28-Sep-2011LCWS11 – WG8G. Riddone, 15 PETS Prototype (LAB) Vacuum flange with adapter Damped bars Tank (short) Coupler middle mm mm  202 mm Coupler extremity Frictional contact Frictional contact EBW Tank

28-Sep-2011LCWS11 – WG8G. Riddone, 16 PETSAccelerating Structure Assembly of PETS and AS Compact load Several pieces under fabrication

28-Sep-2011LCWS11 – WG8G. Riddone, 17 BPM DB-Quad 1. DB-Quad Supporting Plate DB-Quad Supporting Plate 1.a. 1.b. BPM 2. DB-Quad 2.a. DB-Quad (half) 3. BPM fixation 4. BPM assembly 5. DB-Quad assembly 6. DB-Quad (assembled) DB-Quad (assembled) Assembly of BPM-DB Quadrupole

28-Sep-2011LCWS11 – WG8G. Riddone, 18 Prototype module T1 in the lab Each Accelerating structure and PETS is equipped with 1 compact pump SAES NexTorr D100-5:SAES NexTorr D100-5: The central vacuum reservoir is not needed. The RF loads are pumped with usage of compact vacuum tank above the AS. The tank is installed on the special steel supports installed on the MB girder directly. Compact pump Vacuum tank Tank Support Connection to the RF load on the hybrid Connection to the RF load on the AS

28-Sep-2011LCWS11 – WG8G. Riddone, 19 Prototype modules – LAB: schedule 19

28-Sep-2011LCWS11 – WG8G. Riddone, 20 PROTOTYPE TWO-BEAM MODULES IN CLEX

28-Sep-2011LCWS11 – WG8G. Riddone, 21 3D model of integration of the first CLIC Module in CLEX Schematic layout of CLIC Modules in CLEX Prototype two-beam modules in CLEX -3 modules to be tested with beam and RF - module layout compatible with CLEX

28-Sep-2011LCWS11 – WG8G. Riddone, 22 Prototype module T0 in CLEX - double length PETS feeding two accelerating structures - accelerating structures with all technical systems and damping features - First module to be ready by end of 2012

28-Sep-2011LCWS11 – WG8G. Riddone, 23 Objectives Two-beam acceleration in compact modules integrating all technical systems for RF production, beam measurement and acceleration including alignment, stabilisation and vacuum at their nominal parameters. Accelerating structure alignment on girder using probe beam Wakefield monitor (WFM) performance in low and high power conditions, and after a breakdown Investigation of the breakdown effect on the beam Alignment and stabilization systems in a dynamic accelerator environment RF network phase stability especially independent alignment of linacs Vacuum system performance, both static and dynamics with rf Cooling system, especially dynamics due to beam loss and power flow changes Validation of assembly, transport, activation, maintenance etc.

28-Sep-2011LCWS11 – WG8G. Riddone, 24 Prototype modules – CLEX: schedule

28-Sep-2011LCWS11 – WG8G. Riddone, 25 Two-beam module is part of the CLIC feasibility program At present 7 modules under eng. Design/fabrication  6-9 next generation modules up to 2016 Prototype Module project very challenging: – Non standard procurement, several iterations needed with firms, qualification of new firms – First girders in Nov 2010 for type 0 test modules in the lab, although reception at factory already started  fabrication fully satisfactory, alignments and assembly tests under way, thermal tests will be the next important step – Eucard WP 9.2 NC linac – NC accelerating cavities is part of test modules in CLEX  several collaborators highly contributing First module in CLEX: installation in the shut- down CONCLUSIONS

Work-package 26

CTC-TBM: two-beam module development CLIC Linkperson: G. Riddone

Other comments: total modules considered for construction: (see task 1); All deliverables for modules (Alignment, Stabilization, BI, vacuum, RF structures etc) paid by TBA module budget. CTC-TBM: two-beam module development