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Title: Cluster ion source for external injection and high capacity filling of light elements into the relativistic heavy ion collider electron beam ion source

Abstract

An advanced Electron Beam Ion Source (EBIS) is the primary ion source to supply highly charged ion beams of different elements to the Relativistic Heavy Ion Collider (RHIC) and to the NASA Space Radiation Laboratory (NSRL). Intense beams of highly charged ions of various elements of the periodic table, ranging from helium to uranium, have been demonstrated since EBIS became operational in 2010. EBIS routinely provides ion beams to RHIC and NSRL quasisimultaneously with about 1 s switching time between different ion species. Such unique flexibility and rapid switching between ion species are based on external injection of singly charged ions into the EBIS trap either in “fast” or “slow” injection modes. At present, a Laser Ion Source (LIS) provides most of the ion species of solid materials using the “fast” injection mode into the EBIS trap and a Hollow Cathode Ion Source (HCIS) provides most of the ion species of gaseous elements using the “slow” injection mode into the EBIS trap. Gas injection into the EBIS trap is also possible and has been used but imposes some restrictions for the simultaneous generation of highly charged ions such as Au 32+ ions for RHIC and ions of gaseous species formore » NSRL. Because light ions have relatively high velocity inside the EBIS trap, efficient injection of hydrogen and helium ions and filling of the EBIS trap to high capacity is difficult from either LIS or HCIS. To overcome this restriction and enhance EBIS operational capability, we suggest injecting beams of hydrogen and helium cluster ions into the EBIS trap. Required parameters of cluster ion beam injection into the EBIS trap are estimated, and advantages of such an injection are highlighted. A cluster ion source with required high intensity is visible and will be designed, built, optimized, and tested.« less

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1575915
Alternate Identifier(s):
OSTI ID: 1580461
Report Number(s):
BNL-211633-2019-COPA
Journal ID: ISSN 0034-6748
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 90; Journal Issue: 11; Conference: 18th International Conference on Ion Source (ICIS2019), Lanzhou (China), 1-6 Sep 2019; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Kondrashev, Sergey, Beebe, E., and Okamura, M. Cluster ion source for external injection and high capacity filling of light elements into the relativistic heavy ion collider electron beam ion source. United States: N. p., 2019. Web. doi:10.1063/1.5127831.
Kondrashev, Sergey, Beebe, E., & Okamura, M. Cluster ion source for external injection and high capacity filling of light elements into the relativistic heavy ion collider electron beam ion source. United States. doi:10.1063/1.5127831.
Kondrashev, Sergey, Beebe, E., and Okamura, M. Fri . "Cluster ion source for external injection and high capacity filling of light elements into the relativistic heavy ion collider electron beam ion source". United States. doi:10.1063/1.5127831.
@article{osti_1575915,
title = {Cluster ion source for external injection and high capacity filling of light elements into the relativistic heavy ion collider electron beam ion source},
author = {Kondrashev, Sergey and Beebe, E. and Okamura, M.},
abstractNote = {An advanced Electron Beam Ion Source (EBIS) is the primary ion source to supply highly charged ion beams of different elements to the Relativistic Heavy Ion Collider (RHIC) and to the NASA Space Radiation Laboratory (NSRL). Intense beams of highly charged ions of various elements of the periodic table, ranging from helium to uranium, have been demonstrated since EBIS became operational in 2010. EBIS routinely provides ion beams to RHIC and NSRL quasisimultaneously with about 1 s switching time between different ion species. Such unique flexibility and rapid switching between ion species are based on external injection of singly charged ions into the EBIS trap either in “fast” or “slow” injection modes. At present, a Laser Ion Source (LIS) provides most of the ion species of solid materials using the “fast” injection mode into the EBIS trap and a Hollow Cathode Ion Source (HCIS) provides most of the ion species of gaseous elements using the “slow” injection mode into the EBIS trap. Gas injection into the EBIS trap is also possible and has been used but imposes some restrictions for the simultaneous generation of highly charged ions such as Au32+ ions for RHIC and ions of gaseous species for NSRL. Because light ions have relatively high velocity inside the EBIS trap, efficient injection of hydrogen and helium ions and filling of the EBIS trap to high capacity is difficult from either LIS or HCIS. To overcome this restriction and enhance EBIS operational capability, we suggest injecting beams of hydrogen and helium cluster ions into the EBIS trap. Required parameters of cluster ion beam injection into the EBIS trap are estimated, and advantages of such an injection are highlighted. A cluster ion source with required high intensity is visible and will be designed, built, optimized, and tested.},
doi = {10.1063/1.5127831},
journal = {Review of Scientific Instruments},
number = 11,
volume = 90,
place = {United States},
year = {2019},
month = {11}
}

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Works referenced in this record:

Reliable operation of the Brookhaven EBIS for highly charged ion production for RHIC and NSRL
conference, January 2015

  • Beebe, E.; Alessi, J.; Binello, S.
  • PROCEEDINGS OF THE XII INTERNATIONAL SYMPOSIUM ON ELECTRON BEAM ION SOURCES AND TRAPS, AIP Conference Proceedings
  • DOI: 10.1063/1.4905394

A hollow cathode ion source for production of primary ions for the BNL electron beam ion source
journal, February 2014

  • Alessi, James; Beebe, Edward; Carlson, Charles
  • Review of Scientific Instruments, Vol. 85, Issue 2
  • DOI: 10.1063/1.4852235

Historical milestones and future prospects of cluster ion beam technology
journal, August 2014