Radioactive ion beam production capabilities at the Holifield Radioactive Ion Beam Facility

J. R. Beene, D. T. Dowling, C. J. Gross, R. C. Juras, Y. Liu, M. J. Meigs, A. J. Mendez, W. Nazarewicz, J. W. Sinclair, D. W. Stracener, B. A. Tatum

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

5 Scopus citations

Abstract

The Holifield Radioactive Ion Beam Facility (HRIBF) is a national user facility for research with radioactive ion beams (RIBs) that has been in routine operation since 1996. It is located at Oak Ridge National Laboratory (ORNL) and operated by the ORNL Physics Division. The principal mission of the HRIBF is the production of high quality beams of shortlived radioactive isotopes to support research in nuclear structure physics and nuclear astrophysics. HRIBF is currently unique worldwide in its ability to provide neutron-rich fission fragment beams post-accelerated to energies above the Coulomb barrier for nuclear reactions. HRIBF produces RIBs by the isotope separator on-line (ISOL) technique using a particle accelerator system that consists of the Oak Ridge Isochronous Cyclotron (ORIC) driver accelerator, one of the two Injectors for Radioactive Ion Species (IRIS1 or IRIS2) production systems, and the 25-MV tandem electrostatic accelerator that is used for RIB postacceleration. ORIC provides a light ion beam (proton, deuteron, or alpha) which is directed onto a thick target mounted in a target-ion source (TIS) assembly located on IRIS1 or IRIS2. Radioactive atoms that diffuse from the target material are ionized, accelerated, mass selected, and transported to the tandem accelerator where they are further accelerated to energies suitable for nuclear physics research. RIBs are transported through a beam line system to various experimental end stations including the Recoil Mass Spectrometer (RMS) for nuclear structure research, and the Daresbury Recoil Separator (DRS) for nuclear astrophysics research. HRIBF also includes two off-line ion source test facilities, one low-power on-line ISOL test facility (OLTF), and one high-power on-line ISOL test facility (HPTL). This paper provides an overview and status update of HRIBF, describes the recently completed $4.7M IRIS2 addition and incorporation of laser systems for beam production and purification, and discusses a proposed replacement of the ORIC driver accelerator.

Original languageEnglish
Title of host publicationApplication of Accelerators in Research and Industry - Twenty-First International Conference, CAARI 2010
Pages576-580
Number of pages5
DOIs
StatePublished - 2011
Event21st International Conference on Application of Accelerators in Research and Industry, CAARI 2010 - Fort Worth, TX, United States
Duration: Aug 8 2010Aug 13 2010

Publication series

NameAIP Conference Proceedings
Volume1336
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference21st International Conference on Application of Accelerators in Research and Industry, CAARI 2010
Country/TerritoryUnited States
CityFort Worth, TX
Period08/8/1008/13/10

Keywords

  • Accelerator
  • HRIBF
  • ISOL
  • ORNL
  • RIB

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