Experimental setup for investigations of the heavy nuclei fragment fission emission angular asymmetry relatively to a slow neutron beam

Experimental method to measure neutron energy dependence of P-even asymmetry coefficient of fission fragment emission relatively to neutron beam direction has been elaborated and checked up in real physical measurements on the neutron beams of the WWR-M reactor and the GNEIS time-of-flight spectrometer. Experimental set-up consists of the fast multiplate ionization chamber and systems of electronic and automatization on the base of the autonomous processor of AIST type. The possibility to achieve the experimental data precision up to ≅ 10-4 has been shown with the complete control and suppression of different type instrumental asymmetries. 8 refs.; 6 figs