MO2 —  Monday Session 2   (27-Jun-22   11:00—12:40)
Chair: H. Podlech, IAP, Frankfurt am Main, Germany
Paper Title Page
MO2I1
ISOLDE Isotope Production (LE, Post-Accel), for Physics, Material and Life Sciences (MEDICIS Inclusive), Facility Upgrades  
 
  • M. Kowalska
    CERN, Meyrin, Switzerland
 
  The speaker did not provide an abstract.  
slides icon Slides MO2I1 [13.305 MB]  
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MO2I2
Radioactive Ion Beams at TRIUMF, ISAC and ARIEL: Status and Perspectives  
 
  • F. Ames
    TRIUMF, Vancouver, Canada
 
  TRIUMF’s ISAC facility delivered for more than two decades radioactive ion beams to experiments. The isotopes are produced by bombarding solid targets with a beam of 500 MeV protons. Singly charged ions up to 60 keV are extracted, mass selected and distributed to experiments. For experiments requiring higher energy, they are accelerated up to 15 MeV/u by a heavy ion linac consisting of an RFQ, a room temperature drift tube structure and a superconducting linac. Ions with a mass > 30amu are charge state bred with an ECR ion source. A new facility under construction (ARIEL) aims to dripple the amount of beam time available to users. It combines two target stations, a high-resolution mass separator and an EBIS charge breeder. One target station will produce the isotopes from up to 100 kW electrons at 30 MeV and photo fission, while the other one with an additional proton beam from the TRIUMF cyclotron. Results from the existing ISAC facility will be presented. Plans for improvements to ISAC operation and the status of the ARIEL set up will be discussed together with an operational model to run simultaneously all three target stations.  
slides icon Slides MO2I2 [3.211 MB]  
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MO2C3 Status and Perspective of Electron Cyclotron Resonance Based Charge Breeders 6
 
  • J. Angot, M.A. Baylac, M. Migliore, T. Thuillier
    LPSC, Grenoble Cedex, France
  • O.A. Tarvainen
    STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
 
  Since their invention in the late 1990s, Electron Cyclotron Resonance (ECR) based Charge Breeders (CB) have been used in several Isotope Separation On Line (ISOL) facilities to study radioactive ions. Many developments were carried out on these devices to enhance their performances and improve the knowledge on the ECR charge breeding process in laboratories worldwide. At LPSC, recent experiments in pulse mode were carried out to estimate plasma parameters such as the ionisation, charge exchange and confinement times, providing indications on the high charge state ions confinement. A new model of the 1+ beam capture was also proposed and experimentally verified by studying the stopping of injected ions of different masses. Present ECR charge breeder optimum efficiencies vary from 10 to 20% depending on the ion species and the facilities specifications. The total efficiency ranges from 35 to 90% and the charge breeding time from 10 to 25 ms/q. Electron Beam Ion Source (EBIS) is an alternate CB technology with lower contamination yield, yet limited injection flux capability. ECR CB sustains a higher 1+ beam intensity acceptance and its prospects to improve the efficiency, charge breeding time and beam purity are identified.  
slides icon Slides MO2C3 [1.969 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-HIAT2022-MO2C3  
About • Received ※ 21 June 2022 — Revised ※ 30 June 2022 — Accepted ※ 01 July 2022 — Issue date ※ 10 August 2022
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