Progress on the N=126 factory at Argonne National Laboratory

ORAL

Abstract

Multi-nucleon transfer (MNT) reactions between two heavy ions offer a unique method of producing heavy, neutron-rich nuclei that cannot be effectively accessed using traditional fragmentation or fission production techniques. The N=126 factory currently under construction at Argonne National Laboratory's ATLAS facility will make use of these reactions to study, for example, the neutron-rich nuclei near the N=126 shell closure critical for understanding the astrophysical r-process and the formation of the A~195 abundance peak. Due to the wide angular distribution of MNT reaction products, a large-volume gas catcher will be used to convert these into a continuous low-energy beam. This beam will undergo preliminary separation in a magnetic dipole of resolving power R~103 before passing through an RFQ cooler-buncher and MR-TOF system of resolving power R>105, sufficient to suppress isobaric contaminants. These isotopically separated, bunched low energy beams will then be available for experimental systems at ATLAS such as the CPT mass spectrometer for precision mass measurements. The status of the facility under construction will be presented.

*This work is supported in part by the U.S. Department of Energy, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357; by NSERC (Canada), Application No. SAPPJ-2018-00028; by the National Science Foundation under Grant No. PHY-2011890; by the University of Notre Dame; and with resources of ANL's ATLAS facility, an Office of Science User Facility.

Presenters

  • Adrian A Valverde

    • Argonne National Laboratory/University of Manitoba
    • University of Manitoba/Argonne National Laboratory
    • University of Manitoba

Authors

  • Adrian A Valverde

    • Argonne National Laboratory/University of Manitoba
    • University of Manitoba/Argonne National Laboratory
    • University of Manitoba
  • Al Barcikowski

    • Argonne National Laboratory
  • Maxime Brodeur

    • University of Notre Dame
  • Daniel P Burdette

    • University of Notre Dame
  • Jason A Clark

    • Argonne National Laboratory
  • Russell Knaack

    • Argonne National Laboratory
  • Biying Liu

    • University of Notre Dame
  • Guy Savard

    • Argonne National Laboratory
  • Kumar S Sharma

    • University of Manitoba
  • Dwaipayan Ray

    • University of Manitoba
    • University of Manitoba / Argonne National Laboratory
    • University of Manitoba/Argonne National Laboratory
    • U. Manitoba
  • Xinliang L Yan

    • Argonne National Laboratory
  • Bruce J Zabransky

    • Argonne National Laboratory