Author: Abler, D.
Paper Title Page
MOPRI094 Proposal for a Slow Extraction System for a Biomedical Research Facility at CERN based on LEIR 833
 
  • A. Garonna, D. Abler, C. Carli
    CERN, Geneva, Switzerland
 
  Funding: This work was partly funded by the Marie Curie Initial Training Network Fellowship of the European Community’s Seventh Framework Programme under contract number PITN-GA-2008-215840-PARTNER.
A proposal has been made to accelerate ion beams ranging from hydrogen to neon with magnetic rigidities up to 6.7 Tm for biomedical experiments at CERN using the Low Energy Ion Ring (LEIR), in parallel to its continued operation for LHC and for SPS fixed target physics experiments. The feasibility of a new slow extraction system for LEIR based on the third integer resonance was studied with two possible resonance driving mechanisms: quadrupole-driven extraction and RF-knockout extraction. The extraction of fully stripped carbon ions (20-440 MeV/u kinetic energies) has been studied in detail. The requirement to keep the present performance of the machine for physics experiments imposes tight space constraints for the upgrade. The extraction scheme and the hardware requirements are described in this paper.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-MOPRI094  
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MOPRI095 Study of Beam Transport Lines for a Biomedical Research Facility at CERN based on LEIR 836
SUSPSNE043   use link to see paper's listing under its alternate paper code  
 
  • D. Abler
    Oxford University, Physics Department, Oxford, Oxon, United Kingdom
  • C. Carli, A. Garonna
    CERN, Geneva, Switzerland
  • K.J. Peach
    JAI, Oxford, United Kingdom
 
  Funding: This work was supported by EU FP7 PARTNER (215840) and ULICE (228436).
The Low Energy Ion Ring (LEIR) at CERN has been proposed to provide ion beams with magnetic rigidities up to 6.7 Tm for biomedical research, in parallel to its continued operation for LHC and SPS fixed target physics experiments. In the context of this project, two beamlines are proposed for transporting the extracted beam to future experimental end-stations: a vertical beamline for specific low-energy radiobiological research, and a horizontal beamline for radiobiology and medical physics experimentation. This study presents a first linear-optics design for the delivery of 1-5 mm FWHM pencil beams and 5 cm x 5 cm homogeneous broad beams to both endstations. High field uniformity is achieved by selection of the central part of a strongly defocused Gaussian beam, resulting in low beam utilisation.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-MOPRI095  
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