ラザフォード散乱

Rutherford scattering

[目次：理論(電子の散乱／回折／結像)]

原子核のクーロン力による荷電粒子の散乱。原子番号Zの二乗に比例し、(sinθ/2)^-4に比例する。ここでθは散乱角。電子線の場合、高角度散乱で原子核の周りの電子雲による散乱が無視できる高角度散乱領域でラザフォード散乱になる。

"Rutherford scattering" is a phenomenon where a charged particle is scattered by Coulomb force of an atomic nucleus. The intensity of this scattering is proportional to the square of the atomic number Z and to (sinθ/2)^-4, where θ expresses the scattering angle. In the case of the electron beam, the scattering approaches to Rutherford scattering at high-angles where scattering caused by the electron cloud around the atomic nucleus can be neglected.