Principle. Neutrons travel down an evacuated flight path. A timed chopper creates a reference pulse; position-sensitive detectors record scattered arrival events. Correlating travel time and angle reveals structure-related scattering information.
v = L / t
λ = h / (mₙv)
E = ½mₙv²
Q = 4πsin(θ) / λ
d = λ / (2sinθ)
Genuine science: de Broglie wavelength, Newtonian kinetic energy, time-of-flight analysis and the elastic-scattering Bragg relation.
Engineering-inspired: the illustrated housing, guide, shutters, chopper rotors, detector banks and service systems. They are not a plan for a real instrument.
Educational simplifications: single representative neutron speed, elastic scattering, ideal path length, no energy distribution, no gravity correction, no instrument response, no detector calibration and no shielding certification.
Illustrative effects: glowing rays, moving choppers, animated intensity, exterior openings and component motion are visual storytelling, not a validated transport calculation.
Illustrative design, not affiliated with any real institution or manufacturer.