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Title: Recent charge-breeding developments with EBIS/T devices (invited)

Abstract

Short breeding times, narrow charge state distributions, low background, high efficiency, and the flexible time structure of the ejected low-emittance ion pulses are among the most attractive features of electron beam ion source or trap (EBIS/T) based charge breeders. Significant progress has been made to further improve these properties: Several groups are working to increase current densities towards 10{sup 3} or even 10{sup 4} A/cm{sup 2}. These current densities will become necessary to deliver high charge states of heavy nuclei in a short time and/or provide sufficient space-charge capacity to handle high-current ion beams in next-generation rare-isotope beam (RIB) facilities. Efficient capture of continuous beams, attractive because of its potential of handling highest-current ion beams, has become possible with the development of high-density electron beams of >1 A. Requests for the time structure of the charge bred ion pulse range from ultra-short pulses to quasi-continuous beams. Progress is being made on both ends of this spectrum, by either dividing the extracted charge in many pulse-lets, adjusting the extraction potential for a near-uniform long pulse, or adding dedicated devices to spread the ion bunches delivered from the EBIS/T in time. Advances in EBIS/T charge state breeding are summarized, including recent resultsmore » with NSCL’s ReA EBIS/T charge breeder.« less

Authors:
 [1]
  1. National Superconducting Cyclotron Laboratory (NSCL), Michigan State University, East Lansing, Michigan 48824 (United States)
Publication Date:
OSTI Identifier:
22482911
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 87; Journal Issue: 2; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; BREEDING; BROMINE IONS; CHARGE STATES; CURRENT DENSITY; EFFICIENCY; ELECTRON BEAM ION SOURCES; ELECTRON DENSITY; EQUIPMENT; HEAVY NUCLEI; ION BEAMS; PULSES; SPACE CHARGE

Citation Formats

Schwarz, S., E-mail: schwarz@nscl.msu.edu, and Lapierre, A. Recent charge-breeding developments with EBIS/T devices (invited). United States: N. p., 2016. Web. doi:10.1063/1.4933033.
Schwarz, S., E-mail: schwarz@nscl.msu.edu, & Lapierre, A. Recent charge-breeding developments with EBIS/T devices (invited). United States. https://doi.org/10.1063/1.4933033
Schwarz, S., E-mail: schwarz@nscl.msu.edu, and Lapierre, A. 2016. "Recent charge-breeding developments with EBIS/T devices (invited)". United States. https://doi.org/10.1063/1.4933033.
@article{osti_22482911,
title = {Recent charge-breeding developments with EBIS/T devices (invited)},
author = {Schwarz, S., E-mail: schwarz@nscl.msu.edu and Lapierre, A.},
abstractNote = {Short breeding times, narrow charge state distributions, low background, high efficiency, and the flexible time structure of the ejected low-emittance ion pulses are among the most attractive features of electron beam ion source or trap (EBIS/T) based charge breeders. Significant progress has been made to further improve these properties: Several groups are working to increase current densities towards 10{sup 3} or even 10{sup 4} A/cm{sup 2}. These current densities will become necessary to deliver high charge states of heavy nuclei in a short time and/or provide sufficient space-charge capacity to handle high-current ion beams in next-generation rare-isotope beam (RIB) facilities. Efficient capture of continuous beams, attractive because of its potential of handling highest-current ion beams, has become possible with the development of high-density electron beams of >1 A. Requests for the time structure of the charge bred ion pulse range from ultra-short pulses to quasi-continuous beams. Progress is being made on both ends of this spectrum, by either dividing the extracted charge in many pulse-lets, adjusting the extraction potential for a near-uniform long pulse, or adding dedicated devices to spread the ion bunches delivered from the EBIS/T in time. Advances in EBIS/T charge state breeding are summarized, including recent results with NSCL’s ReA EBIS/T charge breeder.},
doi = {10.1063/1.4933033},
url = {https://www.osti.gov/biblio/22482911}, journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 2,
volume = 87,
place = {United States},
year = {Mon Feb 15 00:00:00 EST 2016},
month = {Mon Feb 15 00:00:00 EST 2016}
}