Understanding Na22 Cosmic Abundances

Details Understanding Na22 Cosmic Abundances Understanding Na22 Cosmic Abundances

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aps..dnp.3a084s&link_type=abstract

American Physical Society, Division of Nuclear Physics Annual Meeting, October 25-28, 2006, abstract #3A.084

Physics

Nuclear Physics

Scientific paper

22Na is an elusive cosmic gamma ray emitter that should be abundant as a product of novae, but this isotope is as of yet unobserved except in the central galactic bulge. The discrepancy could be resolved through a recent measurement of 23Mg structure, which discovered a level that may have significant implications on the rate for 22Na destruction via the 22Na(p,gamma)23Mg reaction. One of the main goals of this project is to perform a direct (p,gamma) measurement of the new resonance using a beam of protons that will be accelerated to impinge on a 22Na radioactive target. The target will be produced at TRIUMF-ISAC in Canada. We are currently in the beginning stages of setting up this experiment at CENPA. I will explain the motivations for the experiment, describe the set up, and present calculations that allow optimization of our beam-line design.

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