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The FEM-R-Matrix Approach: Use of Mixed Finite Element and Gaussian Basis Sets for Electron Molecule Collisions
- Publication Year :
- 1995
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 1995.
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Abstract
- For the calculation of electron molecule collision cross sections R-matrix methods automatically take advantage of the division of configuration space into an inner region (I) bounded by radius tau b, where the scattered electron is within the molecular charge cloud and the system is described by an correlated Configuration Interaction (CI) treatment in close analogy to bound state calculations, and an outer region (II) where the scattered electron moves in the long-range multipole potential of the target and efficient analytic methods can be used for solving the asymptotic Schroedinger equation plus boundary conditions.
- Subjects :
- Atomic And Molecular Physics
Subjects
Details
- Language :
- English
- Database :
- NASA Technical Reports
- Notes :
- RTOP 242-80-01
- Publication Type :
- Report
- Accession number :
- edsnas.20020036216
- Document Type :
- Report