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Purification of radioactive neutron-rich argon beams using an ion source in charge breeding mode

Fritioff, T ; Cederkäll, Joakim LU ; Weissman, L ; Barton, CJ ; Connell, KA ; Duniec, D ; Kester, O ; Lamy, T ; Nilsson, T and Jardin, P , et al. (2006) In Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment 556(1). p.31-37
Abstract
Measurements of nuclear properties of some neutron-rich asymmetric fission isotopes at an ISOL laboratory present a severe problem when a plasma ion source is used as the primary ion-source. The problem is associated with intense multi-charged symmetric fission contaminants that cannot be mass-separated from asymmetric fission products. In this work we demonstrate how this problem can be overcome on-line by using an electron cyclotron resonance ion source (ECRIS) as a charge-breeding secondary ion-source. Mixed Ar+/Kr2+/Xe3+ radioactive beams from an plasma ion-source were injected into the PHOENIX ECRIS that currently is installed at the ISOLDE facility at CERN in order to improve the ratio of Ar to the background contaminants of Kr and... (More)
Measurements of nuclear properties of some neutron-rich asymmetric fission isotopes at an ISOL laboratory present a severe problem when a plasma ion source is used as the primary ion-source. The problem is associated with intense multi-charged symmetric fission contaminants that cannot be mass-separated from asymmetric fission products. In this work we demonstrate how this problem can be overcome on-line by using an electron cyclotron resonance ion source (ECRIS) as a charge-breeding secondary ion-source. Mixed Ar+/Kr2+/Xe3+ radioactive beams from an plasma ion-source were injected into the PHOENIX ECRIS that currently is installed at the ISOLDE facility at CERN in order to improve the ratio of Ar to the background contaminants of Kr and Xe. The signal to noise ratio was improved by more than two orders of magnitude after charge-breeding and mass-separation of the Ar8+, Ar9+ beams. The information on the decay of the Ar-48 nucleus obtained in these tests is useful for a better understanding of the origin of the Ca-48/Ca-46 meteorite isotopic anomaly. Potential applications of the method are discussed. (c) 2005 Elsevier B.V. All rights reserved. (Less)
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subject
keywords
on-line separation, ECR ion source
in
Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
volume
556
issue
1
pages
31 - 37
publisher
Elsevier
external identifiers
  • wos:000234695300005
  • scopus:29144476485
ISSN
0167-5087
DOI
10.1016/j.nima.2005.09.045
language
English
LU publication?
yes
id
9bda2163-0d37-4463-b87c-d487eb7a531c (old id 419685)
date added to LUP
2016-04-01 17:04:24
date last changed
2019-09-04 03:03:20
@article{9bda2163-0d37-4463-b87c-d487eb7a531c,
  abstract     = {Measurements of nuclear properties of some neutron-rich asymmetric fission isotopes at an ISOL laboratory present a severe problem when a plasma ion source is used as the primary ion-source. The problem is associated with intense multi-charged symmetric fission contaminants that cannot be mass-separated from asymmetric fission products. In this work we demonstrate how this problem can be overcome on-line by using an electron cyclotron resonance ion source (ECRIS) as a charge-breeding secondary ion-source. Mixed Ar+/Kr2+/Xe3+ radioactive beams from an plasma ion-source were injected into the PHOENIX ECRIS that currently is installed at the ISOLDE facility at CERN in order to improve the ratio of Ar to the background contaminants of Kr and Xe. The signal to noise ratio was improved by more than two orders of magnitude after charge-breeding and mass-separation of the Ar8+, Ar9+ beams. The information on the decay of the Ar-48 nucleus obtained in these tests is useful for a better understanding of the origin of the Ca-48/Ca-46 meteorite isotopic anomaly. Potential applications of the method are discussed. (c) 2005 Elsevier B.V. All rights reserved.},
  author       = {Fritioff, T and Cederkäll, Joakim and Weissman, L and Barton, CJ and Connell, KA and Duniec, D and Kester, O and Lamy, T and Nilsson, T and Jardin, P and Sortais, P and Transtromer, G},
  issn         = {0167-5087},
  language     = {eng},
  number       = {1},
  pages        = {31--37},
  publisher    = {Elsevier},
  series       = {Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment},
  title        = {Purification of radioactive neutron-rich argon beams using an ion source in charge breeding mode},
  url          = {http://dx.doi.org/10.1016/j.nima.2005.09.045},
  doi          = {10.1016/j.nima.2005.09.045},
  volume       = {556},
  year         = {2006},
}