Correlation between sensors' signals and internal resolution of a strip detector

In this work, the theory of branching cascade processes is applied to the description of signal formation in a strip detector for soft X-rays. The theory is applicable to detectors' absorbers that have a single type of intrinsic particles. Intrinsic particles are particles that are generated by incident particle in detector's absorber and cause signals at the strip detector sensors' electronics. From this theory, it follows the new method of experimental determination of the Fano factor. It is shown, that the relative covariance between two signals of a strip detector depends on the fundamental combination of the Fano factor and the effective energy of the intrinsic particle creation in the absorber material. The important advantage of proposed method is its independence from the sensors' electronic gains and noises.