Quantum & Relativity
Compton Scattering
Simulate Arthur Compton's 1923 Nobel prize-winning experiment. Observe high-energy X-ray/gamma photons colliding with stationary electrons, proving light's particle nature via wavelength shift Δλ = λC(1 - cosθ).
Scattering Angle θ
90.0°
Wavelength Shift Δλ
2.426 pm
Scattered Wavelength λ'
12.426 pm
Electron Recoil Speed v_e
0.421 c
Photon & Scattering Angle
Visual Overlay
Controls
Compton Shift Formula
Wavelength shift: λ' - λ = (h / m_e c) · (1 - cos θ) = λ_C · (1 - cos θ)
where λ_C ≈ 2.426 pm (Compton wavelength of electron).
Recoil electron angle: tan φ = sin θ / [(1 + hν / m_e c²)(1 - cos θ)]
where λ_C ≈ 2.426 pm (Compton wavelength of electron).
Recoil electron angle: tan φ = sin θ / [(1 + hν / m_e c²)(1 - cos θ)]
Developer Reference
Core Algorithm & Standalone Script
// Compton Scattering relativistic physics engine
const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');
// dLambda = (h / (m_e * c)) * (1 - cos(theta))