Speaker
Description
We report on the evolution of the SpacePix chip series designed for compact, high-resolution space radiation detection. The SpacePix2-based system was deployed onboard the VZLUSAT-2 nanosatellite and successfully operated in low Earth orbit, collecting in-situ data on the radiation environment over several months. The detector demonstrated stable operation, directional sensitivity, and the ability to discriminate between ionizing particle species, confirming the potential of pixelated semiconductor sensors for real-time space dosimetry.
Leveraging the flight experience, we have developed and characterized the next-generation SpacePix3 chip. This iteration introduces significant enhancements, including improved signal-to-noise ratio, refined energy calibration, and integrated timing capabilities, while maintaining a low power profile and minimal volume critical for nanosatellite missions.
At IWORID 2025, we present a comprehensive overview of the laboratory performance of the SpacePix3 detector system. Characterization includes pixel response uniformity, energy resolution, and validation against simulations and flight data from SpacePix2. These results demonstrate SpacePix3 as a promising platform for future spaceborne radiation imaging systems, enabling both dosimetric monitoring and particle identification in compact form factors suitable for long-duration and multi-directional exposure scenarios.
| Workshop topics | Detector systems |
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