An enforceable property right and a system for controlling the manner of use of an item in accordance with usage rights. Each heater element 10 is configured to heat a bubble forming liquid 11 in the printhead to a temperature above its boiling point to form a gas bubble 12 therein. The infrared data is processed to enhance a set of signal features. The magnetic coil may be used to modulate the neutron beam shape, intensity, velocity, direction and polarization.