The ReA electron-beam ion trap charge breeder for reacceleration of rare isotopes

A. Lapierre, S. Schwarz, K. Kittimanapun, J. Fogleman, S. Krause, S. Nash, R. Rencsok, L. Tobos, G. Perdikakis, M. Portillo, J. A. Rodriguez, W. Wittmer, X. Wu, G. Bollen, D. Leitner, M. Syphers, Team Rea Team

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

ReA is a post-accelerator at the National Superconducting Cyclotron Laboratory at Michigan State University. ReA is designed to reaccelerate rare isotopes to energies of a few MeV/u following production by projectile fragmentation and thermalization in a gas cell. The facility consists of four main components: an electron-beam ion trap (EBIT) charge breeder, an achromatic charge-over-mass (Q/A) separator, a radio-frequency quadrupole accelerator, and a superconducting radio-frequency linear accelerator. The EBIT charge breeder was specifically designed to efficiently capture continuous beams of singly charged ions injected at low energy (<60 keV), charge breed in less than 50 ms, and extract highly charged ions to the Q/A separator for charge-state selection and reacceleration through the accelerator structures. The use of highly charged ions to reach high beam energies is a key aspect that makes ReA a compact and cost-efficient post-accelerator. The EBIT is characterized by a high-current electron gun, a long multi-electrode trap structure and a dual magnet to provide both the high electron-beam current density necessary for fast charge breeding of short-lived isotopes as well as the high capture probability of injected beams. This paper presents an overview and the status of the ReA EBIT, which has extracted for reacceleration tests stable 20Ne 8+ ion beams produced from injected gas and more recently 39K16+ beams by injecting stable 39,41K + ions from an external ion source.

Original languageEnglish
Title of host publicationApplication of Accelerators in Research and Industry - Twenty-Second International Conference
Pages497-502
Number of pages6
DOIs
StatePublished - 2013
Event22nd International Conference on the Application of Accelerators in Research and Industry, CAARI 2012 - Fort Worth, TX, United States
Duration: Aug 5 2012Aug 10 2012

Publication series

NameAIP Conference Proceedings
Volume1525
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference22nd International Conference on the Application of Accelerators in Research and Industry, CAARI 2012
Country/TerritoryUnited States
CityFort Worth, TX
Period08/5/1208/10/12

Keywords

  • Charge breeding
  • Electron-beam ion trap
  • Highly charged ions
  • Post-accelerator
  • Rare isotopes

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