Cu-Kβ radiation inelastically scattered from beryllium and boron interferenced by K-MM radiative Auger transitions

High-resolution spectroscopic analysis of inelastically scattered X-rayK radiation of Cu from polycrystalline Be and B shows some peculiar structure in the region of the inelastically scattered radiation. Coherent scattering of the low-energy satellite structure of the primary Cu-K lines, which extends in the same low-energy region, contaminates the inelastic spectrum and may be responsible for the observed structure. This parasitic elastically scattered radiation contributes to the background lying under the X-ray Raman scattering data and its knowledge is necessary for the correct evaluation of the Raman spectrum.     

Preparation and characterization of MgB2 superconductor

The MgB₂ superconductor, synthesized using solid-state and liquid-phase sintering methods, have been characterized for various properties. The upper critical field, irreversibility line and critical current density have been determined using magnetization data. The current-voltage characteristics recorded under an applied magnetic field revealed the existence of vortex glass transition. The surface analysis using X-ray photoelectron spectroscopy shows that MgB₂ is sensitive to atmospheric degradation.     

Inclusive and exclusive measurements in the projectile breakup of 7Li

The inclusive and exclusive measurements were carried out for ⁷Li projectile breakup on ²⁷Al target at 48 MeV. In the inclusive data we have observed a broad peak around the beam velocity for alphas and tritons. The exclusive data for alpha-triton coincidences show good agreement with the post-form DWBA theory of breakup reactions.