Symetrica has developed a range of proven, fully stabilized gamma-ray detection and identification systems. This success is based on the combination of unique isotope detection algorithms, new hardware architectures and novel detector designs. Referred to collectively as Symetrica Discovery Technology® these systems have been proven in both NaI and LaBr detector systems, as demonstrated by the success of RadSeeker.

Discovery Technology® improves the resolution of the spectrum collected by optimized crystal spectrometers through a patented de-convolution process. In addition to this improvement, a new, proprietary real time stabilisation technique that stabilizes the complete detection chain is applied. These innovations combine to maintain high resolution peak positions over time in varying backgrounds. The creation of these ultra-stable, improved resolution spectra enables the application of a new class of isotope identification algorithm in instruments previously considered as low resolution and more suitable for multiple-template and library spectra matching.

The Discovery Technology® approach utilizes the stabilized peaks and expected peak ratios in our identification algorithms to determine and characterise the threat. Notably, this results in the improved identification of threat materials in shielded, masked or concealed situations outside controlled test environments. This provides two critical benefits to operators. These are an improved identification performance and a reduction in the number of false alarms over a full operational temperature range. More information on the application of this technology can be found here.

The development of our drop-in replacement for Helium-3 neutron detection modules for Radiation Portal Monitors and other Homeland Security Applications was stimulated by the worldwide shortage of Helium-3. The technology is available off-the-shelf and has undergone a substantial environmental and performance test program.

The detectors have been evaluated by Pacific Northwest National Laboratory (PNNL), the Radiation Metrology Group of the UK Health Protection Agency (HPA), the International Atomic Energy Agency (IAEA) and the PERLA laboratory, of the Joint Research Centre (JRC), Institute for Transuranium Elements (ITU), Nuclear Security Unit in Ispra, Italy. A paper summarising the development program is available in the proceedings of the 52nd Annual Meeting of the institute of Nuclear Materials Management and can be found here.

The technology is uniquely scalable. For more information and pricing, please contact us with details of your requirement.

A new class of large volume Spectroscopic-PVT detector has been developed for primary cargo portals. These detectors provide a spectral output and have the potential to provide a classification capability that the current generation of PVT-gamma detectors lack. This unique development could improve the information available from current primary screening systems whilst maintaining the attractive performance and cost benefits of PVT. More information from primary could be used to inform operational decisions that could significantly impact throughput and inspection efficiency whilst maintaining the integrity of the scanning system.

For more information on our Spectroscopic-PVT detection solutions or any of our other technology, please contact us.