A Binary-Coded Digitized Hodoscope

In this paper we discuss a device which consists of 2n-1 strips of scintillation plastic coupled via light-pipes to n photomultiplier tubes in such a way that the combination of tubes which count at a given time gives directly the binary representation of the coordinate of whichever strip is traversed by a high-energy particle. We discuss how one might use such a device in high energy physics. In addition, we have constructed a device with n=4. Its geometry and its light-transmission properties are discussed.