objectives, strategy and present status of the prototype tbm program

Objectives, strategy and present status

of the prototype TBM program

Important program developed in collaboration with several CERN groups.

Review of the TBM lab program

Nov. 6th, 2013

G. Riddone, BE-RF-PM

Nov. 6th, 2013 TBM review G. Riddone

Content

• Introduction – CLIC Layout–Module layout

• TBM LAB program – Objectives– Strategy– Status


Introduction


CLIC Layout at 3 TeV

Main Beam Generation Complex

Drive Beam Generation Complex

Main LINAC two-beam modules


CLIC at 500 GeV (4232 modules)26920 Accelerating structures13460 PETS~ 70000 RF components

CLIC at 3 TeV (21460 modules)142760 Accelerating structures71380 PETS~ 400000 RF components

A. Samoshkin

Two-beam module layout


TBM main types

Module Type 1

3 %

Module Type 2

12 %

Module Type 3

9 %

Module Type 4

3 %

1 to 4 pairs of AS replaced by

MB Quadrupoles

CLIC Module Type o

73 %

Standard Module (L = 2010 mm)DB (100 A)4 PETS, 2 Quads with BPMEach PETS feeds 2 AS

MB (1 A)8 acc. structuresMB filling factor: 91%

DB

MB


Baseline solutions were defined for each technical system in the CDR

Module design and integration coping with challenging requirements

from different technical systems.SYSTEM REQUIREMENTS

RFAS/PETS shape tolerance ± 2.5/ ±7.5 µmAS/PETS Assembly ± 15/ ± 25 µm

INSTRUMENTATIONBPM resolution: MB - 50 nm, DB – 2 µm, temporal - 10 ns (MB & DB),

SUPPORTINGMax. vertical & lateral deformation of the girders in loaded condition 10 μm

COOLING ~400 W per AS, ~ 7.5 kW per modules

MAGNET & POWERINGDB: 81.2-8.12 T/m, current density: 4.8 A/mm2, MB: 200 T/m

PRE-ALIGNMENT & STABILIZATIONactive pre-alignment ± 14 µm at 1σ, beam axis included in a cylinder of radius 10 µm MB Q stabilization 1 nm > 1 Hz (vertical)

VACUUM 10-9 mbar

ASSEMBLY, TRANSPORT, INSTALLATION

same transverse interconnection plane for DB & MB

Main requirementsMain requirements


Objectives and strategy


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 issuesCLIC feasibility issues


Two-beam acceleration validation

Two-beam test stand (PETS and ac. structures)

TBM Lab

TBM 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 designThis 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

- validation of the thermal and mechanical module behaviorDemonstration of the two-beam

acceleration with two-beam modules in CLEXAddress other feasibility issues in an integrated approach

2011-2015

2009-2013


TBM Lab 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

CLIC Two-Beam Module Type 0 in B169


Status


TBM Lab overall status

3) Components under procurement and

assembly

TM1

4) Last module – few components under

procurements

TM4TM0#1

1) Under test

TM0#2

2) Under assembly and installation


TBM T0#2 in LAB

Component Design Production Status Expected

3D %

2D %

Parts % Assembly Date

SAS 100 100 100 Brazing Dec’13

PETS 100 100 100 Brazing Nov’13

RF Network waveguides 100 100 100 Brazing Nov’13

DB BPM 100 100 100 100 -

Vacuum tank 100 100 100 100 -

Vacuum network 100 100 100 100 -

Compact Loads mock-ups 100 100 100 100 -

Cooling tubes/fittings 100 100 100 100 -

Supporting system 100 100 100 100 -

U-clamps 100 100 100 100 -

TBM ASSEMBLY Dec’13


TBM T1 in LABComponent Design Production Status Expected

3D % 2D % Parts % Assembly Date

SAS* 50 50 0 Process optiimisation

Jul’14

PETS 100 100 100 pending May’14

RF Network waveguides 100 100 30 0 Jul’14

DB BPM vacuum chambers 100 100 60 20 May’14

Vacuum tank 100 100 100 100 done

Compact Loads mock-ups 100 100 100 pending May’14

Cooling tubes/fittings 100 100 0 0 May’14

Supporting system** 100 100 90 60 May’14

MBQ + stabilization unit 100 100 100 100 tests

U-clamps 75 50 0 0 -

TBM ASSEMBLY Aug’14

*possibility to integrate a real SAS**DB and MB girders + V-shaped supports are fabricated; cradles fabrication is under way.


TBM T4 in LAB

Component Design Production Status Expected

3D % 2D % Parts % Assembly Date

DB BPM vacuum chambers + BPM 100 80 0 0 -

DBQ mock-up/real 100 100 100 100 ready

MBQ 100 100 100 100 ready

MB Vacuum drift tube + BPM 100 100 0 0 -

MBQ stabilization unit started 0 0 0 -

Supporting system* 100 80 50 50 Ready DB

U-clamps 0 0 0 0 -

TBM ASSEMBLY April 2015

*DB girder + V-shaped supports are fabricated.


Test objectives TM01

o Understanding geometrical tolerances of assembled modules

o Geometrical stability o Temperature • map in the module • variations with operating modes

and environmental conditions (simulation of the real tunnel environment - air flow, ambient T)

• time constants o Functionality of the technical

systems: • cooling system • vacuum system• active alignment system• stabilisation system

See next talks

Dmitry

Fabrizio

Hélène

Cédric

Detailed reports available in EDMS:https://edms.cern.ch/nav/P:AB-011534:V0/P:AB-001829:V0/TAB3


Requirements for AS and PETS

Dictated by beam physics and RF ultra high precision machining

Turning – milling Several annealing

steps (no burrs, no

scratches)AS Disk

PETS bar

objectives, strategy and present status of the prototype tbm program

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