Keyword: hadron
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MOPB02 ARIES-ADA: An R&D Network for Advanced Diagnostics at Accelerators electron, synchrotron, diagnostics, emittance 71
 
  • P. Forck, M. Sapinski
    GSI, Darmstadt, Germany
  • C. Gerth, K. Wittenburg
    DESY, Hamburg, Germany
  • U. Iriso, F. Pérez
    ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
  • R. Ischebeck
    PSI, Villigen PSI, Switzerland
  • O.R. Jones
    CERN, Meyrin, Switzerland
  
  Funding: This project has received funding from the European Union’s Horizon 2020 Research and Innovation programme under Grant Agreement No 730871.
Accelerator Research and Innovation for European Science and Society, ARIES, is an initiative funded by the European Union (https://aries.web.cern.ch/). The activity comprises three major categories: Joint Research Activities; Transnational Access; Network Activities. One of these networks is related to Advanced Diagnostics at Accelerators (ADA) with the task of strengthening collaborations between international laboratories for coordinated research and development in beam diagnostics (https://aries.web.cern.ch/content/wp8). This task is performed by organizing topical workshops on actual developments and supporting interchange of experts between different labs. Since the start of the project in May 2017 four topical workshops of two to three days duration have been organized, each with 30-40 participants ranging from novices to worldwide experts in their particular field. In this contribution these initial workshops are summarized and an outlook given for further workshops within this ARIES-ADA network. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2018-MOPB02  
About • paper received ※ 03 September 2018       paper accepted ※ 11 September 2018       issue date ※ 29 January 2019  
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TUPA15 Adaptive Collimator Design for Future Particle Accelerators vacuum, collimation, site, collider 240
 
  • T.R. Furness, S. Fletcher, J.F. Williamson
    University of Huddersfield, Huddersfield, United Kingdom
  • A. Bertarelli, F. Carra, L. Gentini, M. Pasquali, S. Redaelli
    CERN, Geneva, Switzerland
  
  Funding: This work has recevied funding from the Science & Technology Facilities Council (STFC) and, the European Organization for Nuclear Research (CERN)
The function of collimators in the LHC is to control and safely dispose of the halo particles that are produced by unavoidable beam losses from the circulating beam. Even tiny proportions of the 7TeV beam have the stored energy to quench the superconducting magnets or damage parts of the accelerator if left unchecked. Particle absorbing Low-Z material make up the active area of the collimator (jaws). Various beam impact scenarios can induce significant temperature gradients that cause deformation of the jaws. This can lead to a reduction in beam cleaning efficiency which can have a detrimental effect on beam dynamics. This has led to research into a new Adaptive collimation system (ACS). The ACS is a re-design of a current collimator already in use at CERN. The ACS will incorporate a novel fibre based measurement system and piezoceramic actuators mounted within the body of the collimator to maintain jaw straightness below the 100µm specification. These two systems working in tandem can monitor, and correct for, the jaw structural deformation for all impact events. This paper details the concept and technical solutions of the ACS as well as preliminary validation calculations. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2018-TUPA15  
About • paper received ※ 04 September 2018       paper accepted ※ 11 September 2018       issue date ※ 29 January 2019  
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