Compton effect Comptons x-ray scattering experiment(Nobel 1927) Scattering: light Lead shelter detector Monochromatic propagate in 0 □9 Graphite target different direction X-ray source EM waves: forced vibration> f(n=no) 八,A∵ACompton effect 14 Compton’s x-ray scattering experiment (Nobel 1927) Scattering: light propagate in different direction EM waves: forced vibration → same f (=0)