Direct measurement of the 4He(12C,16O)γ total cross section near stellar energies

Kunihiro Fujita, Hiroyuki Yamaguchi, Tadahiko Ban, Kenichi Hamamoto, Yoshihiro Narikiyo, Nariaki Tao, Kenshi Sagara

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A cross section measurement employing a direct 16O detection method for the reaction energies from Ecm = 2.4 to 0.7 MeV is planned at Kyushu University Tandem Laboratory (KUTL). To perform this experiment and to obtain quantitative information about the cross section to within an error of 10%, we have developed several instruments, including a blow-in type windowless gas target, a recoil mass separator and a RF-deflector. The measurements at Ecm = 2.4 and 1.5 MeV have been performed with these instruments. For measuring at Ecm < 1.2 MeV, a hybrid detector employing both, an ionization chamber and a silicon detector was developed to reduce the carbon backgrounds more efficiently. The oxygen ions were clearly separated from carbon background by using the energy deposit in the ionization chamber. Experiment of Ecm = 1.2 MeV was performed and the cross section was obtained.

Original languageEnglish
Title of host publicationCGS15 2014 - Capture GammaRay Spectroscopy and Related Topics
EditorsKai Zuber, Ronald Schwengner
PublisherEDP Sciences
ISBN (Electronic)9782759817948
Publication statusPublished - May 28 2015
Event15th International Symposium on Capture Gamma Ray Spectroscopy and Related Topics, CGS15 2014 - Dresden, Germany
Duration: Aug 25 2014Aug 29 2014

Publication series

NameEPJ Web of Conferences
ISSN (Print)2101-6275
ISSN (Electronic)2100-014X


Other15th International Symposium on Capture Gamma Ray Spectroscopy and Related Topics, CGS15 2014

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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