Sensitive multi-isotope gamma-ray imaging detection module at low-cost
What is HiSPECT?
HiSPECT, CEA-Leti's technology for a gamma-ray imaging detection module, offers improved spatial and energy resolution. This four-side-buttable 40×40×6 mm3 CdZnTebased module leverages electronic signal processing on existing components for low-cost manufacturing.
Main feature:
- Room-temperature operation from 10 keV to 1.4 MeV
- High spectral resolution: 2% FWHM at 122 keV with a low-noise multi-channel IC (CEA-Irfu),
- High sensitivity: depth-of-interaction, induction and charge sharing correction embedded in a field programmable gate array (FPGA)
- High spatial resolution: 300 μm with a sub-pixel positioning signal processing on a standard CZT geometry with a 2.5 mm pixel pitch addressed by 256 readout electronic channels embedded in a FPGA.
Applications:
This detection module enables multi-isotope imaging and different gamma-ray imaging techniques such as the collimator oversampling technique to improve sensitivity. CEA-Leti's detection module supports various new applications in:
- Nuclear medicine, nuclear energy, environment, homeland and airport security, scientific applications
What's new?
The compactness HiSPECT gamma-ray imaging detector module enables the use of highly sensitive collimators for up to a 10x gain in system sensitivity, leading to a significant reduction of medical scan time while producing the same image quality compared to current existing solutions. HiSPECT also opens possibilities in simultaneous multi-isotope imaging.
What's next?
CEA-Leti works with gamma-ray system manufacturers to build prototyping capability, taking into account the systems' mass-production constraints. The institute offers fast technology transfers and reduced time to market with a clear patent policy.