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Experimental study of the 17F+12C fusion reaction using the ‘Encore’ active target detector and its implications for fusion of proton-halo systems

Presented By:  Benjamin Asher / bwa15@my.fsu.edu / https://linkedin.com/in/ben-asher-32530b105

Ben Asher is a graduate student at Florida State University in the John D. Fox Accelerator laboratory under Dr. Sergio Almaraz-Calderon. He primarily studies fusion reactions using radioactive and isomeric beams with “Encore” – a Multi-Sampling Ionization Chamber that he also designed, built, and characterized. Along with his work with “Encore,” he has also been an integral part in the development of isomeric beams, as well as CATRiNA. In recognition of his contributions, Ben received the John D. Fox Award in 2020 for his excellent work, willingness to help, and expertise around the laboratory.

Abstract

Implications of the halo nature of the low-lying 1/2+ first excited state of the exotic weakly-bound proton drip-line nucleus 17F has long been hypothesized. The structure of such a halo nucleus would imply special nuclear properties including, possibly, an enhancement in its fusion cross section above the barrier. The total fusion cross section of the 17F+12C near the Coulomb barrier was studied using the newly developed ‘Encore’ active-target detector at Florida State University. Encore is a Multi-Sampling Ionization Chamber (MUSIC) which measures energy losses as the beam travels through the detector. Results on the 17F+12C fusion experiment and its implications for fusion of proton halo systems will be presented. The flexibility of this type of detector to measure fusion, (a,p) and (a,n) as well as fusion-fission reactions relevant for nuclear structure and nuclear astrophysics, will also be discussed. Download Abstract
Apr 1, 2021
1:00 pm (CST)
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