General Experimental Method of Small Angle Neutron Scattering(In Chinese)

Small angle neutron scattering belongs to coherent elastic scattering,and for more accurate,it should called aslow q scattering.Because there are some inhomogeneous structure in which size is bigger than the distance of two atoms in the sample,so there is difference of neutron scattering length.After the scattering, the magnitude of scattering vector is not change but the direction of it will change.The experimental method of small angle neutron scattering has been introduced in this paper.The basic theories and several approximations has been sumed up and the preparation of experiment and the measurements have been described in detail.Meanwhile,the data treatment ways and the error estimation of result of data treatment also have been given briefly.

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