Improved Calculations of X-Ray Coherent and Incoherent Scattering Cross-Sections.
Abstract
Progress has been made in many areas of last year's proposal. Relativistic Hartree-Fock 'Impulse' Compton profiles have now been calculated for all atoms up to numer 102. The Exact Hydrogenic L-shell method has been shown to give very accurate results, as compared with experiment, in the region of the profile center for scattering from neon and aluminum. Choices of atomic screening factors Z*(O), which are different from the widely used Slater's screening factors, have been shown for the 1s, 2p and 3d orbitals to give the most accurate one-electron expectation value results of all the hydrogenic screening factors considered. The Excited State Compton Profile Method has been debugged and the partial wave analysis has been shown to give agreement with a known result, for scattering from the 2s and 2p of neon, to about three significant figures. Finally, a direct variational expectation value principle has been employed to determine the Compton profile of a model system.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1974
- Accession Number
- ADA004220
Entities
People
- Lawrence B. Mendelsohn
Organizations
- New York University Tandon School of Engineering