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Title: Charge breeding results and future prospects with electron cyclotron resonance ion source and electron beam ion source (invited)

Abstract

The Californium Rare Ion Breeder Upgrade (CARIBU) of the Argonne National Laboratory ATLAS facility will provide low-energy and reaccelerated neutron-rich radioactive beams for the nuclear physics program. A 70 mCi {sup 252}Cf source produces fission fragments which are thermalized and collected by a helium gas catcher into a low-energy particle beam with a charge of 1+ or 2+. An electron cyclotron resonance (ECR) ion source functions as a charge breeder in order to raise the ion charge sufficiently for acceleration in the ATLAS linac. The final CARIBU configuration will utilize a 1 Ci {sup 252}Cf source to produce radioactive beams with intensities up to 10{sup 6} ions/s for use in the ATLAS facility. The ECR charge breeder has been tested with stable beam injection and has achieved charge breeding efficiencies of 3.6% for {sup 23}Na{sup 8+}, 15.6% for {sup 84}Kr{sup 17+}, and 13.7% for {sup 85}Rb{sup 19+} with typical breeding times of 10 ms/charge state. For the first radioactive beams, a charge breeding efficiency of 11.7% has been achieved for {sup 143}Cs{sup 27+} and 14.7% for {sup 143}Ba{sup 27+}. The project has been commissioned with a radioactive beam of {sup 143}Ba{sup 27+} accelerated to 6.1 MeV/u. In order to takemore » advantage of its lower residual contamination, an EBIS charge breeder will replace the ECR charge breeder in the next two years. The advantages and disadvantages of the two techniques are compared taking into account the requirements of the next generation radioactive beam facilities.« less

Authors:
; ; ; ;  [1]
  1. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
Publication Date:
OSTI Identifier:
22063903
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 83; Journal Issue: 2; Conference: ICIS 2011: 14. international conference on ion sources, Giardini-Naxos, Sicily (Italy), 12-16 Sep 2011; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ANL; BEAM INJECTION; BREEDING; CALIFORNIUM 252; CHARGE STATES; ECR ION SOURCES; ELECTRON BEAM ION SOURCES; ELECTRON CYCLOTRON-RESONANCE; FISSION FRAGMENTS; HELIUM; KRYPTON 84; LINEAR ACCELERATORS; MULTICHARGED IONS; NEUTRON-RICH ISOTOPES; PARTICLE BEAMS; RADIOACTIVE ION BEAMS; RUBIDIUM 85; SODIUM 23

Citation Formats

Vondrasek, R, Levand, A, Pardo, R, Savard, G, and Scott, R. Charge breeding results and future prospects with electron cyclotron resonance ion source and electron beam ion source (invited). United States: N. p., 2012. Web. doi:10.1063/1.3673629.
Vondrasek, R, Levand, A, Pardo, R, Savard, G, & Scott, R. Charge breeding results and future prospects with electron cyclotron resonance ion source and electron beam ion source (invited). United States. doi:10.1063/1.3673629.
Vondrasek, R, Levand, A, Pardo, R, Savard, G, and Scott, R. Wed . "Charge breeding results and future prospects with electron cyclotron resonance ion source and electron beam ion source (invited)". United States. doi:10.1063/1.3673629.
@article{osti_22063903,
title = {Charge breeding results and future prospects with electron cyclotron resonance ion source and electron beam ion source (invited)},
author = {Vondrasek, R and Levand, A and Pardo, R and Savard, G and Scott, R},
abstractNote = {The Californium Rare Ion Breeder Upgrade (CARIBU) of the Argonne National Laboratory ATLAS facility will provide low-energy and reaccelerated neutron-rich radioactive beams for the nuclear physics program. A 70 mCi {sup 252}Cf source produces fission fragments which are thermalized and collected by a helium gas catcher into a low-energy particle beam with a charge of 1+ or 2+. An electron cyclotron resonance (ECR) ion source functions as a charge breeder in order to raise the ion charge sufficiently for acceleration in the ATLAS linac. The final CARIBU configuration will utilize a 1 Ci {sup 252}Cf source to produce radioactive beams with intensities up to 10{sup 6} ions/s for use in the ATLAS facility. The ECR charge breeder has been tested with stable beam injection and has achieved charge breeding efficiencies of 3.6% for {sup 23}Na{sup 8+}, 15.6% for {sup 84}Kr{sup 17+}, and 13.7% for {sup 85}Rb{sup 19+} with typical breeding times of 10 ms/charge state. For the first radioactive beams, a charge breeding efficiency of 11.7% has been achieved for {sup 143}Cs{sup 27+} and 14.7% for {sup 143}Ba{sup 27+}. The project has been commissioned with a radioactive beam of {sup 143}Ba{sup 27+} accelerated to 6.1 MeV/u. In order to take advantage of its lower residual contamination, an EBIS charge breeder will replace the ECR charge breeder in the next two years. The advantages and disadvantages of the two techniques are compared taking into account the requirements of the next generation radioactive beam facilities.},
doi = {10.1063/1.3673629},
journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 2,
volume = 83,
place = {United States},
year = {2012},
month = {2}
}