Electron excitation of alkali atoms. [EACLOC computer code for excitation of alkali atoms by electron collisions] [report]

S. Ormonde
1979 unpublished
l> Phase ShirtK. Argand Diagram* for the '() Ite&onunre at the 5^S Threshold J'ive-Statc-: ttK-4|>-f>H-:{d-rip)L'xparmion i;AC'l-OC Tape Assigrtrm-ntH and iat-n SrilinjjH and l-'unc tmiiH of CiKle Diagnostic unn Klastir (ro.ss Sections i;i»>(-tntri-|lvdni|i('ii li'i.da.slii-t'ros.-i Sections Miscellaneous Multichannel »-|| Tests Sudiuin Ligenvulue* I'r.inKsiurti l-;jgi>m'»|tii'* IVsi Phase Shifts for i-Vi, K Si .m«rmg KXGCUTIVJS SUMMARY This report describes the development unci testing of a
more » ... nci testing of a synthesized close-coupling effective model potential ten-chanae) electron-atom scattering code and some preliminary calculations of resonances In cross sections Far the excitation of exrltcd states of potassium by low energy electruns. The main results obtained are: l 1 2 • Identification of S and I) structures in excitation cross sections below the 5 S threshold of neutral potassium II 2 2 • Indications of additional structures -l 3 and D between the 5 S and 5 D thresholds • A suggested explanation of anomalously high interstate-electron impact excitation cross sections inferred from experiments on potassium-seeded plasmas. The effective potential model imbedded in the code can be used to simulate any atomic system that can be approximated by n single hound electron outside an ionic core. All that is needed is a si-t of effective [>otentjitl pnrameters»expcnmciitni *t iheon.-tical. With minor modifications the code could be adapter] to calculations of electron scattering by two-electron systems.
doi:10.2172/6161500 fatcat:smjsgvxygrf4bi3acdz66hx2q4