Self-calibrating position-sensitive silicon detectors

Position-sensitive silicon detectors with discrete position output signal levels, which have been developed for heavy ion reaction studies at the Lawrence Berkeley Laboratory are discussed. The detectors, both 300- and 5000- mu m thick, for use in Delta E-E telescopes, use a series of high and low conductivity strips on the detector p/sup +/ contact to produce a position signal with 15 discrete levels. Since the position of the signals from the strips is known, the detectors are self-calibrating against position nonlinearities. Some aspects of the fabrication of both the 300- and 5000- mu m detectors are discussed, along with their operating characteristics. Illustrative experimental results of /sup 139/La-induced reactions on /sup 40/Ca targets are presented.< >