Bonn 2010 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 15: Struktur und Dynamik von Kernen III

HK 15.4: Vortrag

Dienstag, 16. März 2010, 14:45–15:00, HG II

Photofission at the S-DALINAC* — •Alf Göök¹, Roman Barday¹, Maksym Chernykh¹, Christian Eckardt¹, Joachim Enders¹, Franz-Josef Hambsch², Peter von Neumann-Cosel¹, Andreas Oberstedt³, Stephan Oberstedt², Yuliya Poltoratska¹, Achim Richter^1,4, and Markus Wagner¹ — ¹Institut für Kernphysik, Technische Universität Darmstadt, Germany — ²EC-JRC Institute for Reference Materials and Measurements, Geel, Belgium — ³Akademin för naturvetenskap och teknik, Örebro universitet, Sweden — ⁴ECT*, Villazzano (Trento), Italy

The fission of ²³⁸U and ²³⁴U induced by bremsstrahlung with endpoint energies between 6 MeV and 9 MeV has been investigated at the superconducting Darmstadt electron linear accelerator S-DALINAC. The experiment is a step in preparing for an experimental investigation of parity violation in photofission. The parity violation effect is expected to be small, hence a high integrated luminousity will be needed for this experiment. The use of a radiation hard detector is therefore mandatory. A twin Frisch-grid ionization chamber has been used to determine fission fragment energy and mass distributions by means of the double kinetic energy technique in order to test the detector performance in the bremsstrahlung environment. The research program will be presented along with results of the experimental studies of fission fragment characteristics.

*Supported by Deutsche Forschungsgemeinschaft through SFB 634.