26-112 Optoelectronic acquisition Chain for Radioluminescent Fiber Dosimeters

Mission

Development of a Miniaturized and Radiation-Hardened Optoelectronic Acquisition Chain for Radioluminescent Fiber Dosimeters in Space Environments

*****Context and challenges*****

Reliable measurement of ionizing radiation is a strategic challenge in the space sector. Satellites, scientific instruments, and crewed missions are exposed to complex radiation environments (protons, electrons, gamma rays, neutrons) that can degrade electronic components, alter sensors, or compromise mission safety.

To address these constraints, CNES is developing onboard dosimetry solutions capable of monitoring radiation levels in real time, while meeting the stringent mass, power, and robustness requirements of space applications.

Among emerging technologies, optical fiber dosimeters based on radioluminescence (RIL) stand out due to their lightweight design, ease of integration, and ability to detect extremely low radiation fluxes (a sensitivity dow...