An instrument for measuring T-odd asymmetries in the fission of heavy nuclei

We describe an experimental setup used to measure the T-odd asymmetry effects for prompt fission neutrons and γ-rays in binary fission of some heavy nuclei induced by polarized neutrons with resonance energy. The overall setup as well as the details of the design and performance of the key components like fission fragment detectors, neutron and γ detectors, and the electronics used in the data acquisition and processing system are presented. The experimental setup on beam line POLI of the FRM II reactor (Garching, Germany), as well as the neutron beam characteristics, polarization measurements are described, too.