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OUTLINE Scientific goals PACMAN as ITN

Introduction to the PACMAN project A study on Particle Accelerator Components’ Metrology and Alignment to the N anometre scale. Web site http:// cern.ch/pacman. OUTLINE Scientific goals PACMAN as ITN. PACMAN internal meeting with PISA university 21/05/2014. H. Mainaud Durand.

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OUTLINE Scientific goals PACMAN as ITN

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  1. Introduction to the PACMAN projectA study on Particle Accelerator Components’ Metrology and Alignment to the Nanometre scale Web site http://cern.ch/pacman • OUTLINE • Scientific goals • PACMAN as ITN PACMAN internal meeting with PISA university 21/05/2014 H. Mainaud Durand

  2. Scientific goals of the project • Introduction to the CLIC project challenges: • Sub-µm beam size, down to a few nm at the IP • A number of challenges to be mastered, among which: • Very tight tolerances of alignment of components, to about 10 µm over a distance of 200m • Active stabilization of the quadrupoles in the nanometre range required

  3. Scientific goals of the project • Introduction to the CLIC project • Based on a two beam acceleration concept • Each linac consists of more than 10 000 modules (with a 2m length)

  4. Scientific goals of the project • Introduction to the CLIC project • Different types of components: • Quadrupoles : • MB quadrupoles: ~ 4000 • DB quadrupoles: ~ 42 000 • BPM: one per eachquadrupole • Accelerating structures: ~ 142 800 • PETS components: ~ 71 000

  5. CLIC performance verifications Stabilisequadrupole O(1nm) @ 1Hz G: 1) Pre-align BPMs+quads accuracy O(10μm) over about 200m 3) Use wake-field monitors accuracy O(3.5μm) – CTF3 2) Beam-based alignment

  6. Scientific goals of the project • Starting point = challenge concerning the pre-alignment of the CLIC components. • Requirements: • The zero of each component will be included in a cylinder with a radius of a few microns: • 14 µm (RF structures & MB quad BPM) • 17 µm (MB quad) • 20 µm (DB quad) • Active alignment consists of two steps: • Determination of the position by alignment sensors • Re-ajustment by actuators • Current strategy • Series of steps: fiducialisation of the components and their support, alignment on a common support, alignment in the tunnel using sensors fiducials. • but time and precision consuming • considering the number of components to be aligned…

  7. Fiducialisation of components Fiducialisation of their common support Alignment on a common support Whole assembly ready to be aligned

  8. Special case of MB quadrupole • One additional step: the stabilization / nano-positioning system

  9. Fiducialisation of components Fiducialisation of their common support Use of the same wire for the fiducialisation Integrating the nanopositioning system Alignment on a common support Regroup the 3 first steps of alignment, in the environment of a 3D Coordinate Measuring Machine (CMM) Whole assembly ready to be aligned

  10. Scientific project • PACMAN project: • Propose and develop an alternative solution integrating all the alignment steps and technologies at the same time and location (CMM machine) • Technologies concerned: Ultra high precision engineering Micrometric alignment Magnetic measurements Beam Instrumentation Nano positioning RF Metrology

  11. Scientific goals of the project • Key activities: • Integration, ultra-high precision engineering and manufacturing • Magnetic measurements with a vibrating stretched wire (and alternative based on printed circuit boards rotating search coils) • Determination of the electromagnetic centre of BPM and RF structure using a stretched wire • Absolute methods of measurements: new measuring head for CMM, combination of FSI and micro-triangulation measurements as an alternative • Improve seismic sensors and study ground motion • Nano-positioning system to position the quadrupole and BPM Outcome = a prototype alignment bench • Long term • Automation of the process • Simplification (method, duration, components) • Extrapolation to other components • Optimization of performances and precision in all domains • Preparation of industrialization

  12. PACMAN as ITN: Marie Curie action • A Marie Curie action provides EC funding for post-grads to participate in CERN projects • PACMAN project belongs to an ITN = Initial Training Network • Purpose: • Improve career perspectives of Early Stage Researchers (ESR) in both public and private sectors • Make research careers more attractive • Objectives: • Respond to well-identified needs in defined scientific or technological areas • Expose the researcher to other sectors • Offer a comprehensive set of transferable skills • There are 3 different ITN programs: multi-ITN, IDP and EID. PACMAN is an Innovative Doctoral Program • Management at CERN • 10 ESR • ESRs must be working towards a PhD  universities must supervise the PhD student • Associated Partners from universities and industry • Secondment of at least 3 months in industry for each ESR.

  13. PACMAN as ITN • High quality of the training program: • Training through research at CERN and at universities • Exchange of knowledge through secondments in the industrial partners • Scientific, academic and technological training courses including trainings organized by PACMAN • Transferable skills training courses • 3 PACMAN workshops, with training and dissemination purposes: • First workshop: setup the scenario: presentation of the state of the art by industrial partners, presentation of the PhD subjects by ESR • Second workshop: present the first results and conclusion concerning each subject • Third workshop: conclusion of the project in front of invited experts • A workshop on Intellectual Property and technology transfer, organized with the KT group at CERN, including a training session prepared by the WIPO (World International Property Organization), with other participants as Hexagon, TNO and NI, with practical cases prepared by their IP department. • Participation in external conferences and workshops : LCWS, IBIC, IWAA, MT, IMMW, IPAC, etc. • Special emphasis put on women scientists • Dedicated outreach activities

  14. PACMAN as ITN

  15. Supervisory Board CERN, HEXAGON, ETALON, ELTOS, METROLAB, DMP, SIGMAPHI, TNO, NI DELFT, CRANFIELD, SANNIO univ., LAPP, ETHZ,IFIC, SYMME Management team Admin. Assistant: Alexandra Hati WP0 Management H. Mainaud Durand WP5 Training N. Catalan Lasheras WP6 Diss & Outreach M. Modena WP4 Beam Instrumentation M. Wendt WP1 Metrology & Alignment H. Mainaud Durand WP2 Magnetic Measurements S. Russenschuck WP3 Precision mech. & stabilization M. Modena ESR4.1 ESR4.2 ESR3.2 ESR3.1 ESR2.1 ESR2.2 ESR1.1 ESR1.2 ESR3.3 ESR1.3

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