Momentum Distributions and Quantum Liquids

利用中子衍射技术研究液氦的性质。原子动量分布n(p)将通过深度非弹性n散射来探测，用于液体3He， 3He - 4He混合物和4He，在限制几何中。在第二项研究中，弹性n散射将用于探测多孔介质内的氦结构。特别地，我们将研究表面随机性在决定固体的结晶和玻璃相结构中的作用。

The properties of liquid helium will be studied by neutron- diffraction techniques. The atomic momentum distribution n(p) will be probed by deep inelastic n scattering, for targets of liquid 3He, 3He - 4He mixtures and 4He, in restricted geometries. In a second study, elastic n scattering will be used to probe the helium structure inside porous media. In particular, one will examine the role of the surface randomness in determining the structure of the crystalline and glassy phases of the solid.