Delay-line electrode partitioning as a means of simplified position-sensing

We have investigated various means by which charge-cloud mapping can be accomplished via simplified detector architectures, in order to enable ubiquitous and economical detector deployment. After investigating, via models and measurements, both amplitude and time-based methods, we established that amplitude-based methods; that is, methods that employ pulse-shape analysis, require relatively complicated detector structures in order to achieve fine position sensing. A structurally simple time-based scheme, in which a delay-line electrode structure is used to isolate the position of charge collection, however can be implemented to provide fine lateral position-sensing. As discussed in this paper, we completed the fabrication of a proof-of-concept device and used it to demonstrate the validity of the technique.