A novel, fast readout, gamma detector system for nuclear fingerprinting

Decommissioning of legacy nuclear facilities or clean up in the aftermath of a nuclear incident requires a detailed knowledge of the amount, type and distribution of nuclear materials present. One technique available to rapidly provide this information in situ is high precision gamma spectroscopy. These spectrometers rely on precision measurements of energy deposited into the spectrometer from incident photons, however the high precision limits the speed of the measurements and therefore limits the upper threshold of radiation levels that can be measured. In this work we present simulation results of a novel, multi-detector system with a fast readout (10 times greater than system currently on the market) that is suitable for higher radiation levels. The complete system is now under test.