Compton Scattering Calculator

Calculate the Compton wavelength shift and energy transfer when photons scatter from free electrons.

Typical X-ray: 0.01-0.1 nm

Results

Compton Wavelength (λc): 2.4263 pm


Wavelength Shift (Δλ): 2.4263 pm

Final Wavelength: 0.102426 nm


Incident Photon Energy: 12.3998 keV

Scattered Photon Energy: 12.1061 keV

Energy Transferred to Electron: 0.2937 keV


Electron Recoil Angle: 44.31°

Compton Scattering Formula

Δλ = λ' - λ = λc(1 - cos θ)

where λc = h/(mec) = 2.426 pm

Maximum shift occurs at θ = 180° (backscattering)

Δλmax = 2λc = 4.85 pm