ギニエ則(Guinier law)

最終更新日：2023.5.1

希薄粒子系の散乱で、小角散乱のなかでも非常に小角での散乱（Qの小さなところでの散乱）はギニエ則に従うことが知られています。ギニエ則とは、物体の形状に関係なく、散乱強度I(Q)がI(0)exp[-R_g^2 Q^2/3]で近似できることをいいます。ここで、R_gは物体の回転半径です。ギニエ則がわかるとあなたも散乱屋の仲間入りですね。
Scattering of dilute particle systems at very small angles (scattering at small Q) is known to follow the Guinier law. The Guinier rule states that the scattering intensity I(Q) can be approximated by I(0)exp[-R_g^2 Q^2/3] regardless of the shape of the object. where R_g is the radius of rotation of the object. Once you understand the Guinier rule, you are one of the scattering experts.

---

---