Measuring the Astrophysics Rate for Radiative Proton Capture on 21NA

Details Measuring the Astrophysics Rate for Radiative Proton Capture on 21NA Measuring the Astrophysics Rate for Radiative Proton Capture on 21NA

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003omeg.conf..163d&link_type=abstract

ORIGIN OF MATTER AND EVOLUTION OF GALAXIES 2000. Proceedings of the International Symposium. Held 19-21 January 2000 in Universi

Astronomy and Astrophysics

Astronomy

Scientific paper

The 21Na(p,γ)22Mg reaction is believed to play an important role determining the amount of the long-lived, radioisotope 22Na in the universe. This nuclide is important as a target of current and future generations of gamma ray telescopes, since its production is part of the pathway of a nova, and because its daughter, 22Ne, has been found in pre-solar grains in meteorites. Unfortunately the rate of this reaction has never been measured primarily due to the fact that 21Na is radioactive (T1/2 = 23 s). This report describes an experimental program aimed at measuring this rate using inverse kinematics at the new radioactive beams facility, ISAC. A new recoil mass separator, DRAGON, is being constructed to perform this and similar reaction rate studies; the status of this new facility is presented. New information on the levels of 22Mg, studied using a p, t reaction is also presented.

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