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 Richter1,4, and Markus Wagner11Institut 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.

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