Directional neutron detector

A device comprising:

• a target comprising a substantially planar layer of hydrogenous material that emits a recoil proton responsive to a neutron scattering event therein;
• a first scintillator comprising a substantially planar layer of material that emits a first light pulse responsive to traversal by a charged particle;
• a second scintillator comprising a substantially planar layer of material that emits a second light pulse responsive to traversal by a charged particle;
• a discrimination module for determining whether a received light pulse is a first light pulse or a second light pulse;
• and
• a counting module for storing a first count of the number of first light pulses received by the discrimination module, and a second count of the number of second light pulses received by the discrimination module, the difference between the first count and the second count indicating a direction of a neutron source relative to the device along an axis that is orthogonal to both substantially planar layers of the first and second scintillators;
• wherein:
• the first scintillator layer and the second scintillator layer are each configured to receive a recoil proton from the target layer;
• the first scintillator layer and the second scintillator layer are substantially parallel to each other;
• the first scintillator layer is proximate to a first side of the target layer;
• and
• the second scintillator layer is proximate to a second side of the target layer, the second side being opposite to the first side of the target layer.