An Experimental study of anti-neutron detection

The main features of a new type of antineutron detector are described. It consists of modules of scintillators, limited streamer tube planes and iron converters. The energy of the antineutrons is measured by time of flight with a resolution of 800 ps FWHM. The vertex of annihilation is reconstructed with a precision of 8 cm FWHM. The trigger conditions can be selected following the chosen topology of the events.