Study of $^{19}$Ne levels of Importance to $^{18}$F production in Novae

ORAL

Abstract

$^{18}$F is a relatively long-lived radioactive product of novae and its decay series is a direct probe of novae burning. The $^{18}$F(p,$\alpha)^{15}$O reaction dominates $^{18}$F destruction in novae but the rate is uncertain because the properties of important $^{19}$Ne levels have never been experimentally determined. There are several levels with uncertain spins and excitation energies that have only been estimated before. At ORNL, the $^{20}$Ne(p,d)$^{ 19}$Ne reaction was measured to study these important levels by using a 30 MeV beam of protons from the HRIBF tandem accelerator was used to bombard a carbon target implanted with $^{20}$Ne and outgoing particles were detected in a silicon strip detector array. Data will be shown and analysis discussed.

*Work supported by DOE and NNSA SSGF.

Authors

  • P. O'Malley

    • Rutgers U
    • Rutgers
    • Rutgers University
  • M.E. Howard

    • Rutgers
  • J.A. Cizewski

    • Rutgers
    • Rutgers University
  • D.W. Bardayan

    • ORNL
    • Oak Ridge National Laboratory
  • M.S. Smith

    • ORNL
    • Oak Ridge National Laboratory
  • K.Y. Chae

    • U. of Tenn.
  • S.T. Pittman

    • UTK
    • U. of Tenn.
  • S.H. Ahn

    • UTK
    • U. of Tenn.
  • R.L. Kozub

    • Tenn. Tech. U.
  • M. Matos

    • Louisiana State Univ.
    • LSU
    • Louisiana State University
  • B. Moazen

    • LSU