The original goal of this project was to determine the characteristics of a channeltron, a device used to detect electrons. While most channeltrons have entrance cones which are quite small, the channeltron we were to study had a significantly larger one. Due to its large size, the possibility existed that the channeltron would be more efficient at detecting electrons which hit near the center of the channeltron entrance than at detecting the electrons which hit near the edge. The main purpose of the experiment was to determine the relative detection efficiency of the channeltron as a function of the position where the electrons hit it.
Scott, Steve, "A Measurement of the Relative Efficiency of a Channeltron" (1991). Opportunities for Undergraduate Research Experience Program (OURE). 150.