SOLARIS: A neutron tracker feasibility study for the next-generation solar missions detectors

The advancement of neutron detection and imaging technologies in space environments necessitates cutting-edge innovations to develop reliable, low-power, and adaptable detection systems. Recent space missions, such as the Parker Solar Probe and ESA Solar Orbiter, have demonstrated the feasibility of approaching the Sun's outer corona. These missions, have provided novel insights into the plasma dynamics that govern solar wind and flare activity, where high-energy particles are generated and accelerated. In this context, the characterization and mapping of neutron flux have the potential to reveal critical details about the complex interplay of nuclear and plasma processes occurring on the solar surface. To approach this purpose, a next-generation neutron tracker detector is being proposed and simulated. A proof-of-concept setup, designed to combine simplicity with high-performance capabilities, is being studied to evaluate detection efficiency and energy reconstruction capability. The setup has been conceived to incorporate mechanically adjustable features, allowing for high detection efficiency and real-time optimization of neutron-tracking angular resolution.