Abstract: A method and apparatus for temporal source analysis using array detectors is provided. The invention allows synchronization of an imaging device with a temporally discontinuous illumination source, for example, a raster scan source or a strobed source. Moreover, a fast scan of signals through an array detector may be used to determine signals or data of interest, and to thence process only the data of interest to determine such temporal measurements. A signal analyzer and method are disclosed for accurately determining the timing, for example the ON time, of a timing source using an array detector. Temporal source analysis and synchronization are automatically performed using a fast scan technique for reading data from the array detector.