... normal, max 8 detectorsl High performance 6LiI(Eu) scintillator neutron detector is optionall Distinguish Natural Occurring Radioactive Materials from Special Nuclear ... ,GB/T 24246-2009 standards Specifications& Technical Parameters Gamma DetectorNeutron Detector(optional)Detector25/36/50 litres plastic scintillator6LiI(Eu) scintillatorEnergy range20 ...