SMuK 2023 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 42: Structure and Dynamics of Nuclei VIII

HK 42.5: Vortrag

Mittwoch, 22. März 2023, 17:00–17:15, SCH/A215

Correlation Experiments in Photofission* — •Vincent Wende¹, Dimiter Balabanski⁴, Joachim Enders¹, Sean W. Finch², Alf Göök³, Calvin R. Howell², Ronald C. Malone⁶, Maximilian Meier¹, Andreas Oberstedt⁴, Stephan Oberstedt⁵, Marius Peck¹, Norbert Pietralla¹, Jack A. Silano⁶, Gerhart Steinhilber¹, Anton P. Tonchev⁶, and Werner Tornow² — ¹Institut für Kernphysik, Fachbereich Physik, TU Darmstadt, Darmstadt, Germany — ²Triangle Universities Nuclear Laboratory, Duke University, Durham, NC, USA — ³Uppsala Universitet, Uppsala, Sweden — ⁴ELI-NP, IFIN-HH, Magurele, Romania — ⁵EC-JRC Geel, Belgium — ⁶Lawrence Livermore National Laboratory, Livermore, CA, USA

Mass, total kinetic energy and polar as well as azimuthal angular distributions of fission fragments were measured simultaneously using a position-sensitive twin Frisch-grid ionization chamber [1]. We present results of a pioneering ²³⁸U(γ,f) experiment at the High-Intensity γ-Ray Source (HIγS) facility at Triangle Universities Nuclear Laboratory (TUNL) at an excitation energy of 11.2 MeV [2] as well as the first data from follow-up ²³⁴U(γ,f) and ²³²Th(γ,f) experiments with excitation energies near the fission barrier.
*Supported by HMWK (LOEWE Cluster Nuclear Photonics)
[1] A. Göök et al., Nucl. Instrum. Methods A 830, 366 (2016);
M.Peck et al., EPJ Web of Conferences 239, 05011 (2020).
[2] M. Peck, PhD Dissertation, TU Darmstadt (2020).