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Title: Ionization efficiency studies with charge breeder and conventional electron cyclotron resonance ion source

Radioactive Ion Beams play an increasingly important role in several European research facility programs such as SPES, SPIRAL1 Upgrade, and SPIRAL2, but even more for those such as EURISOL. Although remarkable advances of ECRIS charge breeders (CBs) have been achieved, further studies are needed to gain insight on the physics of the charge breeding process. The fundamental plasma processes of charge breeders are studied in the frame of the European collaboration project, EMILIE, for optimizing the charge breeding. Important information on the charge breeding can be obtained by conducting similar experiments using the gas mixing and 2-frequency heating techniques with a conventional JYFL 14 GHz ECRIS and the LPSC-PHOENIX charge breeder. The first experiments were carried out with noble gases and they revealed, for example, that the effects of the gas mixing and 2-frequency heating on the production of high charge states appear to be additive for the conventional ECRIS. The results also indicate that at least in the case of noble gases the differences between the conventional ECRIS and the charge breeder cause only minor impact on the production efficiency of ion beams.
Authors:
; ; ; ;  [1] ; ;  [2] ; ;  [3] ;  [4] ;  [5] ; ; ;  [6]
  1. Department of Physics, University of Jyväskylä (JYFL), Jyväskylä (Finland)
  2. LPSC, Université Joseph Fourier Grenoble 1, Grenoble INP, 53 rue des martyrs, 38026 Grenoble Cedex (France)
  3. GANIL, CEA/DSM-CNRS/IN2P3, Caen Cedex 05 (France)
  4. INFN-Laboratori Nazionali di Legnaro, Legnaro, Padova (Italy)
  5. INFN-Laboratori Nazionali del Sud, Catania (Italy)
  6. Heavy Ion Laboratory, University of Warsaw, Warsaw (Poland)
Publication Date:
OSTI Identifier:
22253197
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 2; Conference: ICIS 2011: 14. international conference on ion sources, Giardini-Naxos, Sicily (Italy), 12-16 Sep 2011; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; CHARGE STATES; ECR ION SOURCES; GHZ RANGE 01-100; IONIZATION; OPTIMIZATION; RADIOACTIVE ION BEAMS; RARE GASES