Fast-timing measurements between LaBr<sub>3</sub>(Ce) detectors in the neutron-rich N = 20 region

ORAL

Abstract

Changes in nuclear shell structure can occur due to varying proton and neutron numbers inside the nucleus. Sensitive probes to those changes, so-called “nuclear shell evolution”, are nuclear transition rates, which depend in part on understanding the level lifetimes. The National Superconducting Cyclotron Laboratory (NSCL) conducted a β decay experiment in the neutron-rich N = 20 region where radioactive nuclei were implanted into a CeBr3 scintillator coupled to a Position-Sensitive Photomultiplier Tube (PSMPT), which offered the ability to correlate the decays to the implanted ions using spatial and temporal techniques. 15 LaBr3(Ce) detectors were used for γ radiation detection and to provide fast timing measurement, with time-difference spectra generated for β-delayed γ radiation following a decay event to measure half-lives. Corrections for the energy-dependent time-walk effects and validation results in the neutron-rich N = 20 region will be presented.

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Presenters

  • Tawfik M Gaballah

    • Mississippi State University

Authors

  • Tawfik M Gaballah

    • Mississippi State University

  • Benjamin P Crider

    • Mississippi State University

  • Sean N Liddick

    • Facility for Rare Isotope Beams
    • Michigan State University
    • NSCL Michigan State University
    • Michigan State University (MSU)
    • FRIB
    • Facility for Rare Isotope Beams, Michigan State University

  • Aaron Chester

    • Michigan State University
    • Simon Fraser University

  • Katherine L Childers

    • Michigan State University
    • Texas A&M University

  • Partha Chowdhury

    • University of Massachusetts Lowell

  • Edward Lamere

    • University of Massachusetts Lowell

  • Rebecca Lewis

    • Michigan State University
    • Zeno Power

  • Brenden R Longfellow

    • Lawrence Livermore Natl Lab
    • NSCL Michigan State University
    • Lawrence Livermore National Laboratory

  • Stephanie M Lyons

    • Pacific Northwest National Laboratory
    • Michigan State University
    • NSCL Michigan State University
    • Pacific Northwest National Lab
    • Pacific Northwestern National Laboratory
    • FRIB

  • Shree K Neupane

    • University of Tennessee

  • David Perez-Loureiro

    • University of Tennessee
    • University of Tennessee, Knoxville

  • Christopher J Prokop

    • Los Alamos National Laboratory

  • Andrea Richard

    • Michigan State University

  • Umesh M Silwal

    • Mississippi State University

  • Timilehin H Ogunbeku

    • Mississippi State University

  • Durga P Siwakoti

    • Mississippi State Univ

  • Dylan C Smith

    • Mississippi State University

  • Mallory K Smith

    • NSCL
    • NSCL Michigan State University
    • Facility for Rare Isotope Beams

  • Yongchi Xiao

    • University of Kentucky
    • Michigan State University
    • Mississippi State University