Author: Saminathan, S.
Paper Title Page
TUPPT022 A 20 mA H Ion Source with Accel-Accel-Decel Extraction System at TRIUMF 198
  • K. Jayamanna, I. Aguilar, I.V. Bylinskii, G. Cojocaru, R.L. Dube, R.K. Laplante, W. L. Louie, M. Lovera, M. Minato, M. Mouat, S. Saminathan, T.M. Tateyama, E. Tikhomolov
    TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
  During the last three decades, TRIUMF has developed H cusp ion sources for the 500 MeV, TR30, TR13 cyclotrons, as well as many other machines. These ion sources can be categorized as high current versions, producing up to 20mA of CW H beam within a normalized emittance (4RMS) of 0.6 π-mm-mrad. A new accel-accel-decel extraction system is being developed in order to run the source at optimum source extraction voltage for a large range of beam energies with minimal impact on beam properties. With this extraction system, beam energy can be as low as ~1keV and as high as 60keV while source extraction voltage can be at its optimum within 90kV. The source performances, as well as relevant emittance measurements, are discussed.  
WEPPT009 Transverse Phase-Space Distributions of Low Energy Ion Beams Extracted from an ECR Ion Source 341
  • S. Saminathan
    TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
  • J.P.M. Beijers, S. Brandenburg, H.R. Kremers, V. Mironov
    KVI, Groningen, The Netherlands
  Transverse phase-space distributions of low-energy ion beams extracted from ECR ion sources often show higher-order effects caused by ion-optical aberrations. Understanding these effects is mandatory to keep emittance growth and the resulting beam losses in low-energy beam transport lines under control. We present the results of an experimental and theoretical study of beam extraction and transport in the AGOR injection line at KVI. Particle tracking simulations have been performed of a multi-component neon ion beam extracted from an ECR ion source to calculate 4D phase-space distributions at various positions along the beamline. The simulations compare well with beam profile and emittance measurements.