Ultrafast gamma ray energy disperse spectroscopy

An ultrafast gamma ray energy disperse spectroscopy comprises a scintillation crystal array, a light guide array, a detector array and an analyzer. The scintillation crystal array, the light guide array and the detector array are sequentially arranged in the incidence direction of gamma rays, and the output end of the detector array is connected with the input end of the analyzer. Each piece of scintillation crystal, a light guide device corresponding to the scintillation crystal and a detector corresponding to the scintillation crystal form an independent gamma ray detecting channel, and therefore the problem of crosstalk of photons in the detectors is avoided; the ultrafast gamma ray energy disperse spectroscopy is high in measurement accuracy, large in dynamic range, high in integration level and flexible to use, and the measuring range is changeable.