Speaker
Description
The SiSMUV (SiPM-based Space Monitor for UV-light) project develops a compact, modular ultraviolet detector for space-based astroparticle telescopes. Each unit integrates a SiPM matrix, custom ASIC-based front-end electronics, and FPGA logic for local control, triggering, and real-time data processing. This architecture achieves low power consumption, reduced mass, and modular scalability—key requirements for focal surface instruments in future missions targeting fluorescence and Cherenkov emission from cosmic rays.
The current prototype employs Hamamatsu S13361-3050 SiPM arrays, a RADIOROC ASIC with per-channel bias tuning and dual-gain capability, and a Xilinx Artix FPGA. The system provides fine gain calibration, sub-photoelectron triggering, and linearity up to 2000 photoelectrons. The mechanical design supports spherical focal surfaces, withstands launch stresses, and operates under extended thermal-vacuum conditions. Signal routing via micro-coaxial cabling minimizes dead area, enabling dense packing of detector modules.
Functional characterization with a dark-box setup, integrating sphere, and pulsed laser confirms photon detection efficiency in agreement with specifications and validates gain, crosstalk, and afterpulse performance. Parallel Geant4 simulations, benchmarked with prototype data, further support detector modeling and response studies.
Initially conceived as a technology demonstrator, SiSMUV is now under consideration for integration into the Cherenkov Camera of the POEMMA-Balloon with Radio mission. Its modularity, robustness, and high sensitivity make it a promising solution for next-generation space-based UV and Cherenkov detectors.
| Position | Tenure track assistant professor |
|---|---|
| Affiliation | Università delgi Studi di Napoli Federico II & INFN Napoli |
| Country | Italy |