Direct measurement of 4He(12C, 16O)γ reaction near stellar energy

Details Direct measurement of 4He(12C, 16O)γ reaction near stellar energy Direct measurement of 4He(12C, 16O)γ reaction near stellar energy

Aug 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1269..289f&link_type=abstract

THE 10TH INTERNATIONAL SYMPOSIUM ON ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: OMEG-2010. AIP Conference Proceedings, Volume 1

Physics

Nuclear Energy Levels, Gamma-Rays, Tandem Accelerators, Single-Particle Levels And Strength Functions, Gamma-Ray Effects, Linear Accelerators

Scientific paper

A cross section measurement with a direct 16O detection method for the reaction energy from Ecm = 2.4 down to 0.7 MeV is planned at Kyushu University Tandem Laboratory (KUTL). To perform the experiment successfully and to get the quantitative information of the cross section within the 10% error, we have newly developed several instruments in 2009, such as a blow-in type windowless gas target and movable slit system placed in the recoil mass separator. By using the windowless blow-in gas target, a pressure of 24 Torr was achieved. The effective thickness along the beam axis was measured by p+4He scattering. Thanks to the movable slits installed in a recoil mass separator and the trajectory analysis, we found effective reduction of background conditions from the 12C beam.

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