02308cam a2200373Ia 4500011444210MiAaHDL20141009010000.0m d cr bn ---auauacr cnu||||||||041012s1970 dcu b f000 0 eng dsdr-uiuc6402185(OCoLC)56716101EGMEGMOCLCQAD#UIUUNAS 1.14:D-5987NASA-TN-D-5987Shomo, Lawrence P.A method for the calculation of large numbers of dipole and quadrupole transition probabilities[electronic resource] /Lawrence P. Shomo, Goetz K. Oertel, and Charles S. Freer.NASA TN D-5987Washington, D.C. :National Aeronautics and Space Administration ;[For sale by the Clearinghouse for Federal Scientific and Technical, Springfield, Virginia 20230],1970.39 p. ;27 cm.NASA technical note ;D-5987Includes bibliographical references (p. 38-39).A computer program is presented which selects allowed transitions and calculates dipole and quadrupole transition probabilities for transitions with LS coupling and no equivalent electrons, based on an extension of the Coulomb approximation formalism to quadrupole and higher multipole transitions. Absorption oscillator strengths or f-values calculated by (1) the self-consistent-field method, (2) the scaled Thomas-Fermi method, (3) the Coulomb approximation method, (4) the variational method, and (5) the effective charge method for singlet and triplet transitions in neutral helium are presented and compared. The Coulomb approximation f-values calculated with the present computer program are found to be in good agreement with the results obtained by the more sophisticated methods.Mode of access: Internet.System requirements: Adobe Acrobat Reader.Mode of access: World Wide Web.Computer programs.Quadrupoles.Dipole moments.Coulomb functions.Atomic spectroscopy.Langley Research Center.United States.National Aeronautics and Space Administration.01144421020101109151846.020141009010000.020141112165512.02025-01-01T19:27:25Z2025-01-01T18:30:02ZSDR-UIUCUNKNOWNloader.pl-003-020BKsdr-uiuc6402185uiugSDRUIUCuiug.30112106691519UIU6402185UIUUIUC20250101googleuiug.301121066915191970pdbibUS fed doc