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First radioactive ions charge bred in REXEBIS at the REX-ISOLDE accelerator

Wolf, B. H.; Cederkäll, J. LU ; Forstner, O.; Wenander, F.; Ames, F.; Reisinger, K.; Liljeby, L.; Skeppstedt, Ö; Jonson, B. and Nyman, G. (2003) In Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms 204. p.428-432
Abstract

REXEBIS is the charge breeder of the REX-ISOLDE postaccelerator. Radioactive 1+ ions produced at ISOLDE are accumulated, phase-space cooled and bunched in REXTRAP, and thereafter injected into the EBIS with an energy of up to 60 keV. The REXEBIS produced the first charge bred ions in August 2001 and has been running nearly non-stop from September to December 2001. It has delivered stable 39K10+ and 23Na7+ beams generated in the test ion-source in front of REXTRAP with a current of 12 pA for K10+ and a Na7+ current exceeding 70 pA (6 × 107 p/s). Stable 27Al7+ and 23Na6+ (about 10 pA) and also the first... (More)

REXEBIS is the charge breeder of the REX-ISOLDE postaccelerator. Radioactive 1+ ions produced at ISOLDE are accumulated, phase-space cooled and bunched in REXTRAP, and thereafter injected into the EBIS with an energy of up to 60 keV. The REXEBIS produced the first charge bred ions in August 2001 and has been running nearly non-stop from September to December 2001. It has delivered stable 39K10+ and 23Na7+ beams generated in the test ion-source in front of REXTRAP with a current of 12 pA for K10+ and a Na7+ current exceeding 70 pA (6 × 107 p/s). Stable 27Al7+ and 23Na6+ (about 10 pA) and also the first radioactive 26Na7+ and 24Na7+ beams (just 0.4 pA or 5 × 105 p/s), from the ISOLDE separator have been charge bred and accelerated for tests of the experimental setup. Despite some problems with the LaB6 cathode (one total breakdown after about 1500 h of operation), displaying slow changes of the emission conditions, the EBIS is working remarkably stable. We report about the first ion injections, ion source details, cathode conditions as well as other commissioning results.

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author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Charge breeding, EBIS, Ion trap, Radioactive ions
in
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
volume
204
pages
5 pages
publisher
Elsevier
external identifiers
  • scopus:0038220951
ISSN
0168-583X
DOI
10.1016/S0168-583X(02)02108-0
language
English
LU publication?
no
id
0844ab40-e291-499f-8ed6-610a40af1f0e
date added to LUP
2016-12-20 14:21:57
date last changed
2017-07-30 05:19:21
@article{0844ab40-e291-499f-8ed6-610a40af1f0e,
  abstract     = {<p>REXEBIS is the charge breeder of the REX-ISOLDE postaccelerator. Radioactive 1<sup>+</sup> ions produced at ISOLDE are accumulated, phase-space cooled and bunched in REXTRAP, and thereafter injected into the EBIS with an energy of up to 60 keV. The REXEBIS produced the first charge bred ions in August 2001 and has been running nearly non-stop from September to December 2001. It has delivered stable <sup>39</sup>K<sup>10+</sup> and <sup>23</sup>Na<sup>7+</sup> beams generated in the test ion-source in front of REXTRAP with a current of 12 pA for K<sup>10+</sup> and a Na<sup>7+</sup> current exceeding 70 pA (6 × 10<sup>7</sup> p/s). Stable <sup>27</sup>Al<sup>7+</sup> and <sup>23</sup>Na<sup>6+</sup> (about 10 pA) and also the first radioactive <sup>26</sup>Na<sup>7+</sup> and <sup>24</sup>Na<sup>7+</sup> beams (just 0.4 pA or 5 × 10<sup>5</sup> p/s), from the ISOLDE separator have been charge bred and accelerated for tests of the experimental setup. Despite some problems with the LaB<sub>6</sub> cathode (one total breakdown after about 1500 h of operation), displaying slow changes of the emission conditions, the EBIS is working remarkably stable. We report about the first ion injections, ion source details, cathode conditions as well as other commissioning results.</p>},
  author       = {Wolf, B. H. and Cederkäll, J. and Forstner, O. and Wenander, F. and Ames, F. and Reisinger, K. and Liljeby, L. and Skeppstedt, Ö and Jonson, B. and Nyman, G.},
  issn         = {0168-583X},
  keyword      = {Charge breeding,EBIS,Ion trap,Radioactive ions},
  language     = {eng},
  pages        = {428--432},
  publisher    = {Elsevier},
  series       = {Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms},
  title        = {First radioactive ions charge bred in REXEBIS at the REX-ISOLDE accelerator},
  url          = {http://dx.doi.org/10.1016/S0168-583X(02)02108-0},
  volume       = {204},
  year         = {2003},
}