Radiation detectors

We propose a compact detector architecture integrating polycrystalline CCI325 thin-films with SiPM sensors for high-efficiency, miniaturized particle radiation spectroscopy. Using a phoswich configuration and pulse-shape discrimination, the system ensures high-fidelity particle identification and energy reconstruction across a broad spectral range.
We propose a scintillation detector architecture employing polycrystalline CCI325, which is engineered for integration with Silicon Photomultiplier (SiPM) sensors. By optimizing the coupling geometry and ensuring a good spectral match with SiPM sensitivity, we achieve maximized light collection efficiency and improved spectroscopic resolution. Since SiPM is a modern solution for proportional and time-resolved light detection, the combination with thin-layer scintillators is a straightforward design for a miniaturized spectroscopic device, especially desired in space applications.
The thin-layer scintillators are not sufficient to cover a useful energy range of particle radiation, therefore a composite arrangement with a conventional scintillator is proposed, following the concept of the phoswich (phosphor sandwich) detectors, relying on the distinct luminescence decay characteristics of each material layer. By applying advanced pulse-shape discrimination and signal decomposition algorithms, the system can accurately reconstruct incident particle energy and perform high-fidelity particle identification across a broad spectral range.
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