A large-volume detector capable of charged-particle tracking

We discuss a new scheme to measure charged particle tracks in a large-volume detector. Such detectors are needed for the study of neutrino-induced reactions. The proposed detector consists of arrays of fluorescent fibers submersed in a tank of liquid scintillator. Analysis of the distribution of the light collected by fibers near a charged-particle track can be used to reconstruct the parameters of the track. We show that the results obtained with a simple prototype detector demonstrate that the proposed scheme is feasible.