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Performance of ANL ECR breeder with low mass beams

Abstract : The CAlifornium Rare Isotope Breeder Upgrade (CARIBU) is a new radioactive beam facility for the Argonne Tandem Linac Accelerator System (ATLAS). The facility utilizes a 252Cf fission source coupled with an electron cyclotron resonance (ECR) ion source to provide radioactive beam species for the ATLAS experimental program. The californium fission fragment distribution provides nuclei in the mid-mass range which are difficult to extract from production targets using the isotope separation on line (ISOL) technique and are not well populated by low-energy fission of uranium. To date the charge breeding program has focused on optimizing these mid-mass beams, achieving high charge breeding efficiencies of both gaseous and solid species including 14.7% for the radioactive species 143Ba27+. In an effort to better understand the charge breeding mechanism, we have recently focused on the low-mass species sodium and potassium which up to present have been difficult to charge breed efficiently. Unprecedented charge breeding efficiencies of 10.1% for 23Na7+ and 17.9% for 39K10+ were obtained injecting stable Na+ and K+ beams from a surface ionization source.
keyword : Charge breeder
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http://hal.in2p3.fr/in2p3-00958211
Contributor : Michel Lion <>
Submitted on : Tuesday, March 11, 2014 - 11:35:51 PM
Last modification on : Thursday, February 1, 2018 - 1:33:05 AM

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  • HAL Id : in2p3-00958211, version 1

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R. Vondrasek, S. Kutsaev, R. Pardo, R. Scott, P. Delahaye, et al.. Performance of ANL ECR breeder with low mass beams. 20th International Workshop on Electron Cyclotron Resonance Ion Sources (ECRIS-2012), Sep 2012, Sydney, Australia. pp.177-181. ⟨in2p3-00958211⟩

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