The GR1 was the perfect choice for in-field radiation detection
The high-resolution GR1 can accurately measure, separate and identify the presence of individual sources of radiation within mixed samples, because the detector is small, lightweight and portable, and has no requirement for cooling, it is ideal for in-field measurement.
Utilising the GR1 CZT-based gamma spectrometer at its core, the system needed to be shielded from background radiation but still remain small enough to be transportable. Using a lead surround provided the necessary shielding. The result was the QuantGR1, which provides accurate results within 10 to 20 minutes, allows large numbers of samples to be taken in a reduced period of time. The unit remains light and small enough to fit into the EDF Environmental Survey Vehicle, or on a bench in a lab.
Tested and verified by Cavendish Nuclear
In-field testing and certification were undertaken by Cavendish Nuclear in conjunction with EDF Energy to verify the system’s capability in meeting EDF Energy’s Minimum Detectable Activity specifications, accurately detecting the low levels of radiation.
Software and deployment
A fit for purpose software package was also designed in collaboration with EDF Energy. Current models of the QuantGR1 using Kromek’s MultiSpect Analysis gamma spectroscopy software.
EDF Energy is currently deploying the QuantGR1 in their environmental survey vehicles across the UK as part of their emergency arrangements.
QuantGR1 radiation detector in EDF Energy Environmental Survey Vehicle