Timing resistive plate chambers for thermal neutron detection with 3D position sensitivity

An optimized design of a neutron detector based on timing RPCs (Resistive Plate Chambers) with boron-10 converters is presented. The composed stack ten double gap aluminium cathode plates coated both sides 10B4C. This enables simultaneous determination high accuracy the time-of-flight (down to ns resolution) and interaction position in 3D 0.25 mm resolution across ∼1 along beam). It shown that detection efficiency can approach 60% for neutrons lambda = 4.7 Å. A new geometry less material budget introduced signal pick-up strip arrays. results simulation-based optimization are reported considering trade-off between efficiency, count rate capability amount elastic scattering components.