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arXiv · 2602.09172

Synchrotron-based Photonuclear Neutron Source for Energy, Medicine and Radiation Testing

Antonio Cammi·Lorenzo Loi·Andrea Missaglia·David Alesini·Hans Heinrich Braun
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Abstract

The global availability of high-intensity neutron sources is restricted by the prohibitive costs of spallation facilities and the decommissioning of aging research reactors, while compact accelerator-driven sources (CANS) are fundamentally limited by target power density and thermal-mechanical stress. Here, we introduce SYNERGY (SYnchrotron-driven NEutron source for Research, energy Generation and therapY), a paradigm-shifting architecture that overcomes these bottlenecks by decoupling charged-particle acceleration from neutron production. By utilizing a storage ring to drive external photoneutron targets via synchrotron radiation, this topological separation ensures targets interact exclusively with a continuous-wave (CW) photon beam, minimizing thermo-mechanical shocks and enabling beam powers exceeding 200 kW per beamline. Through a systematic parametric analysis cross-validated using OpenMC, MCNPX, and FLUKA, we demonstrate single-beamline neutron production rates from $2.8\times10^{14}$ n/s to $1.3\times10^{15}$ n/s. With an inherent multi-beamline capacity feeding up to 50 independent stations, the total facility intensity exceeds $6.0\times10^{16}$ n/s. By bridging the gap between laboratory and national-scale infrastructure, SYNERGY provides a high-intensity, multi-user platform for subcritical systems, medical isotope production, and boron neutron capture therapy.

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Antonio Cammi, Lorenzo Loi, Andrea Missaglia, David Alesini, Hans Heinrich Braun. 2026-02-09. Synchrotron-based Photonuclear Neutron Source for Energy, Medicine and Radiation Testing. https://arxiv.org/abs/2602.09172

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