We have measured cross sections and analyzing powers for low-lying states of 40j42944j48Ca excited by 100 and 200 MeV protons. In addition, data were also acquired for 160 at both energies. The measurements were made with the K600 spectrometer and span momentum transfers between about 0.4 and 2.7 fm-'. Data for the self-conjugate targets will be used to fit empirical parametrizations for medium...

We report an x-ray scattering study of the microscopic structure of the surface of a liquid alkali metal. The bulk liquid structure factor of the eutectic K67Na33 alloy is characteristic of an ideal mixture, and so shares the properties of an elemental liquid alkali metal. Analysis of off-specular diffuse scattering and specular x-ray reflectivity shows that the surface roughness of the K-Na al...

Applying various stimuli to excite large-amplitude electrostatic structure within plasmas is a basic idea of plasma-based acceleration. However, because these stimuli are usually magnetized, whether or not their wakes within plasmas are purely electrostatic should be cautiously treated. By strict theory on self-consistent fields of charged particles, we make detailed investigations on the wakes...