Pulse Shape Discrimination (PSD)
Liquid Scintillation Detectors
The performance of the liquid scintillator developed by our company is comparable to that of EJ-309.The best achievable PSD (FOM) of the detector is FOM=1.26@100keVee. Note that the size of the detectors can be customized.
Radiation Detection Instruments
Fast Neutron Multiplicity Counting (FNMC) System
The active FNMC device can be used to characterize the special nuclear materials with a lower spontaneous fission rate, such as Uranium-235; while the passive one can be used to characterize the special nuclear materials with a higher spontaneous fission rate, such as Plutonium-240.
PRODUCTS
Passive FNMC Gen-I
It consists of 32 liquid scintillation detectors with a fission neutron detection efficiency of about 15%@50keVee. The detectors are arranged in a spherical configuration, which ensures that the detection efficiency of the system is quite uniform.
Passive FNMC Gen-II
The second-generation FNMC Gen-II system has undergone two major upgrades compared to the first-generation system: 1) The electronics readout system now uses a self-developed high-speed FPGA-online neutron-gamma discrimination electronics, enabling the system to measure the large-mass fissionable nuclear materials with a higher alpha-n reaction rates; 2) The appearance design has been modified, and an automatic sample loading system has been added.
Active FNMC Gen-I
The active FNMC Gen-I system has two changes compared to the passive FNMC Gen-II system: 1) An active excitation source (Am-Li neutron source) has been added; 2) The detection system configuration has been redesigned from a spherical symmetry layout to a cylindrical symmetry layout.
