小角散射中超微颗粒系的粒间相干模型

STATISTICAL MODEL OF INTERPARTICLE INTERFERENCE FOUNDED BY SMALL ANGLE NEUTRON SCATTERING

从统计物理的系综理论出发，借助熵和相互作用能概念构造出了超微颗粒系粒间相干的统计模型，避免了对颗粒相位角作复杂计算，并已得到初步实验结果的支持。

With the aid of classic statistics theory,especially the concept of ensemble and the particle interaction function, a new statistical model describing the interparticle interference in a nanometer sized particle system is founded to avoid the complicated calculation of phase angle. It is significant that the model gives a quantitative and simple relationship between the interparticle interference and the scattering intensity measured within a strict range of scattering angle,which have been proven by experimental results. The model can also be used to describe the amorphous system.