Author: Balhan, B.
Paper Title Page
MOPFI061 Concept for Elena Extraction and Beam Transfer Elements 422
  • J. Borburgh, B. Balhan, W. Bartmann, T. Fowler, L. Sermeus, G. Vanbavinckhove
    CERN, Geneva, Switzerland
  • R.A. Baartman
    TRIUMF, Vancouver, Canada
  • D. Barna
    University of Tokyo, Tokyo, Japan
  • V. Pricop
    Transilvania University of Brasov, Brasov, Romania
  In 2011 the ELENA decelerator was approved as a CERN project. Initially one extraction was foreseen, which should use a kicker and a magnetic septum which can be recuperated from an earlier installation. Since then a second extraction has been approved and a new solution was studied using only electric fields to extract the beam. This will be achieved by fast pulsing a separator, allowing single-bunch but also a full single-turn extraction from ELENA towards the experiments. The extraction and transfer requirements of ELENA are described, followed by the principal differences between the magnetic and electric field concepts. The design of electrostatic focussing and bending devices for the transfer lines will be presented. Finally the field quality which can be achieved with the separator and the concept of its power supply will be discussed.  
MOPWO025 Optics and Protection of the Injection and Extraction Regions of the CLIC Damping Rings 939
  • R. Apsimon, B. Balhan, M.J. Barnes, J. Borburgh, B. Goddard, Y. Papaphilippou, J.A. Uythoven
    CERN, Geneva, Switzerland
  The optics design of the injection and extraction regions for the CLIC damping rings is presented. The design defines the parameters for the kicker magnets and septa in these regions and has been optimised to minimise the length of the insertions within the parameter space of the system. Failure modes of the injection and extraction elements are identified and their severity assessed. Protection elements for the injection and extraction regions are optimised based on the conclusions of the failure mode analysis.