Absolute measurement of ionization-excitation of helium at intermediate energies and their interpretation von Avaldi, L, Camilloni, R, Multari, R, Stefani, G, Langlois, J, Robaux, O, Tweed, R J, Vien, G Nguyen

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Simultaneous excitation-ionization of helium at five times threshold von Rouvellou, B, Rioual, S, Pochat, A, Tweed, R J, Langlois, J, Vien, G Nguyen, Robaux, O

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The effect of target atom polarization and wavefunction distortion in (e - 2e) ionization of hydrogen von Rouet, F, Tweed, R J, Langlois, J

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Double processes in e--He collisions von TWEED, R. J

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Absolute cross sections for 100 eV electron impact ionization of helium in a symmetric energy-sharing geometry von Gelebart, F, Tweed, R J

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Semiclassical approach to PCI in (e - 2e) ionization of H: coplanar geometry energy sharing von Nicolas, M, Tweed, R J, Robaux, O

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Wavefunction effects in theoretical (e,2e) cross sections for ionization of helium with excitation of the residual ion von Robaux, O, Tweed, R J, Langlois, J

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A semiclassical theoretical model for (e-2e) processes von Tweed, R J, Langlois, J

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Pseudostate bases including an L2 description of the continuum for use in e--He collision calculations von Tweed, R J, Langlois, J

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Autoionization of helium by electron impact: theory incorporating exchange von Tweed, R J

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Autoionization by electron impact: experiment with He von Gelebart, F, Tweed, R J, Peresse, J

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Wavefunction effects in the calculation of cross sections for electron impact ionisation of helium at high energy von Tweed, R J, Langlois, J

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Use of the virial theorem in the calculation of wavefunctions for helium autoionising states von Tweed, R J, Langlois, J

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Absolute triple differential cross-section measurements in energy sharing kinematics and a coplanar asymmetric geometry at 100 and 200 eV on He von CHERID, M, GELEBART, F, POCHAT, A, TWEED, R. J, ZHANG, X, WHELAN, C. T, WALTERS, H. R. J

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Absolute low-energy experimental cross sections for ( e ,2 e ) processes on helium von POCHAT, A, ZHANG, X, WHELAN, C. T, WALTERS, H. R. J, TWEED, R. J, GELEBART, F, CHERID, M, ALLAN, R. J

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Theoretical triple differential cross sections for the autoionisation of helium by electron impact: limits on the validity of first-order models von Tweed, R J, Langlois, J

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Autoionization by electron impact: experiments on Ar, Kr and Xe von Tweed, R J, Gelebart, F, Peresse, J

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Ionisation of helium by 8 keV electrons: a first Born calculation using distorted waves and correlated initial-state wavefunctions von Tweed, R J, Langlois, J

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The second Born approximation for ionization von Tweed, R J

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Excited state wavefunctions for helium von Tweed, R J

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