a system and method for compensating signal delay across a solid state photomultiplier . the method including determining respective arrival times of signals from a plurality of microcells of the photomultiplier , calculating a signal transit time delay difference between the respective arrival times for individual signals , correlating the individual transit time delay differences to an amount of respective signal propagation compensation for respective microcells of the photomultiplier , and introducing the respective signal propagation compensation into circuitry of the respective microcells . the method also includes at least one of adjusting a response shape of a photodiode within each of the plurality of microcells , adjusting operating parameters of a one - shot pulse circuit within the microcells , and modifying circuit design values of each microcells during fabrication of the photomultiplier . a non - transitory computer readable medium and a system for implementing the method on a row , column , and / or individual microcell level are disclosed .