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HK: Fachverband Physik der Hadronen und Kerne

HK 14: Structure and Dynamics of Nuclei III

HK 14.6: Vortrag

Dienstag, 12. März 2024, 17:00–17:15, HBR 14: HS 1

²³²Th(γ^→,f) reaction measured by quasi-monochromatic photon beams* — •Annabel Ibel¹, Dimiter Balabanski², Joachim Enders¹, Sean W. Finch³, Alf Göök⁴, Calvin R. Howell³, Ronald C. Malone⁵, Maximilian Meier¹, Andreas Oberstedt², Stephan Oberstedt⁶, Marius Peck¹, Norbert Pietralla¹, Jack A. Silano⁵, Gerhart Steinhilber¹, Forrest Q. L. Friesen³, Anthony P. D. Ramirez⁵, Anton P. Tonchev⁵, Werner Tornow³, and Vincent Wende¹ — ¹Institut für Kernphysik, Fachbereich Physik, TU Darmstadt, Darmstadt, Germany — ²ELI-NP, IFIN-HH, Magurele, Romania — ³Triangle Universities Nuclear Laboratory, Duke University, Durham, NC, USA — ⁴Uppsala Universitet, Uppsala, Sweden — ⁵Lawrence Livermore National Laboratory, Livermore, CA, USA — ⁶EC-JRC Geel, Belgium

High-precision photon-induced ²³²Th(γ^→,f) experiments give access to information about the fission process from measuring the kinetic energy, the mass and the angular distribution of the fission fragments using a Frisch-Grid Ionization Chamber. This contribution will show data from an experimental campaign conducted at the High Intensity Gamma-ray Source facility using quasi-monochromatic photon beams between 6.2 MeV and 13 MeV. A comparison of the measured mass distributions to previous experiments using bremsstrahlung will be presented.

*Supported by DFG (GRK 2891, project ID 499256822)

Keywords: fission; ionisation chamber; photon-induced; actinide; fission fragments