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Updated: Jul 7, 2025
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Electronics and Detectors for the Stellar Intensity Interferometer of the ASTRI Mini-Array Telescopes
Giovanni Bonanno1, Luca Zampieri2, Giampiero Naletto2,3
1INAF-Osservatorio Astrofisico di Catania, Via Santa Sofia, 78, 95123 Catania, Italy.
Sensors (Basel, Switzerland)
|December 23, 2023
Summary
The ASTRI Mini-Array will use nine telescopes for Cherenkov and stellar intensity interferometry (SII) observations. A new instrument with Silicon Photomultiplier (SiPM) detectors is designed for its focal plane.
Area of Science:
- Astrophysics
- Optical Interferometry
Background:
- The ASTRI Mini-Array is an international project utilizing nine telescopes.
- It aims to conduct Cherenkov and optical stellar intensity interferometry (SII) observations.
Purpose of the Study:
- To present the design of a stellar intensity interferometry instrument for the ASTRI Mini-Array.
- To detail the selection of Silicon Photomultiplier (SiPM) detectors and front-end electronics.
Main Methods:
- Designing a stellar intensity interferometry instrument.
- Selecting Silicon Photomultiplier (SiPM) detectors that match the telescope's point spread function.
- Developing dedicated front-end electronics.
Main Results:
- A specific instrument design has been selected.
- The design incorporates Silicon Photomultiplier (SiPM) detectors and custom electronics.
Conclusions:
- The proposed instrument design is suitable for the ASTRI Mini-Array.
- The use of SiPM detectors and dedicated electronics will enable advanced SII observations.
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