Fast tracking detector with fiber scintillators and a position sensitive photomultiplier

The properties of tracking detector composed of 32 fiber scintillators coupled to a multianode photomultiplier placed in a pion beam at TRIUMF were studied. The efficiency of the detector was measured as well as its tracking capabilities and double-hit resolution. It is concluded that the combination of fiber scintillators coupled to a position-sensitive photomultiplier can operate as a fast tracking detector with almost 100% efficiency at rates up to the MHz region and can easily recognise single-and double-hit events with correct fiber identification. It can do this with algorithms simple enough to be used for online identification