MATERIALS ANALYSIS AT THE SNL LLNL NUCLEAR MICROPROBE/

A wide variety of materials have been analyzed using the nuclear micro probe in Livermore, including metals, low density foams, compound semi conductors for room temperature detectors, glasses and particulates. A brief overview of our recent work is given, in addition to a broader discussion of three specific applications. In the first application, I on Microtomography (IMT) is used to produce three-dimensional mass den sity maps of low density foams being developed as targets for Z-pinch physics experiments. In the second application, we produce two-dimensi onal elemental maps of CdZnTe crystals being developed as room tempera ture radiation detectors. The maps help determine the effect of local variations in stoichiometry on detector performance. Finally, we discu ss the measurement of trace elements and radial diffusion profiles in superconducting wire using micro-scale Particle-Induced X-ray Emission (PIXE).