ABSOLUTE GENERALIZED OSCILLATOR-STRENGTHS OF 4S, 4S', 4P-RESOLVED ELECTRON-ENERGY-LOSS SPECTROMETER(4P' EXCITATIONS OF ARGON DETERMINED BY THE ANGLE)

The absolute differential cross sections and generalized oscillator st rengths of resolved 3p(6 1)S(0)-->3p(5)(P-2(1/2))4s, 3p(5)(P-2(3/2))4s ' transitions in argon were determined by angle-resolved electron-ener gy-loss spectrometer ar an incident electron energy of 1500 eV and sca ttering angles from 2 degrees to 11.5 degrees. Corrections of the expe rimental results for the angular factor and pressure effect have been made. These results art compared with oilier experimental and theoreti cal results, The absolute differential cross sections and generalized oscillator strengths of unresolved nondipole excitations 3p(6)-3p(5)4p +4p' are reported. The profile or the generalized oscillator strength curve if similar ro that of neon atoms.