H. Walters

发表

High energy electron impact ionisation of H91s in coplanar asymmetric geometry

R. Dreizler, C. Whelan, H. Walters, 1991 .

The electron impact ionization of one- and two-electron atoms and ions close to the ionization threshold

C. Whelan, H. Walters, J. Martinez, 2008 .

The ionization of Mg by electron impact at 1000 eV studied by (e, 2e) experiments

S. Veronesi, L. Avaldi, P. Bolognesi, 2008 .

Exact versus local exchange in distorted-wave Born calculations of electron impact ionisation

S. Kawano, C. Tannous, J. Langlois, 2001 .

TRIPLE DIFFERENTIAL CROSS SECTIONS FOR THE ELECTRON IMPACT IONIZATION OF HELIUM, NEON AND ARGON FROM 0.1 TO 1 KEV. THEORY AND EXPERIMENT COMPARED

M. Coplan, R. Allan, C. Whelan, 1999 .

processes with positive-ion targets in coplanar symmetric geometry

O. R. Spivack, R. Allan, C. Whelan, 1998 .

Spin dependence of (e, 2e) collisions on lithium at 54.4 eV

M. Streun, D. Fursa, I. Bray, 1998 .

LETTER TO THE EDITOR: Triple differential cross sections for the electron-impact ionization of argon and neon

R. Allan, S. Rioual, C. Whelan, 1997 .

An Explanation of the Structure Observed in Out-Of-Plane Symmetric Measurements on Helium

R. Allan, C. Whelan, H. Walters, 1997 .

Low and intermediate energy coplanar symmetric (e, 2e) cross sections for the ionization of neon

R. Allan, S. Rioual, F. Gélébart, 1995 .

(e,2e), effective charges, distorted waves and all that!

R. Allan, C. Whelan, H. Walters, 1993 .

Directions in (e,2e) and Related Processes

C. Whelan, H. Walters, X. Zhang, 1993 .

Perturbative methods in electron- and positron-atom scattering

H. Walters, 1984 .

Electron scattering by atomic hydrogen: the distorted-wave second Born approximation

A. Kingston, H. Walters, 1980 .

Electron scattering by atomic hydrogen at intermediate energies. I. Integrated elastic, 1s-2s and 1s-2p cross sections

P. Burke, M. Scott, T. Scholz, 1989 .

Proposed antimatter gravity measurement with an antihydrogen beam

D. Sillou, S. Gninenko, V. Matveev, 2008 .

Positron scattering by the noble gases

H. Walters, M. McAlinden, 1992 .

Second-order effects in (e, 2e) excitation-ionization of helium to ( n = 2)

C. Whelan, H. Walters, P. Marchalant, 1998 .

Excitation — Ionization and Excitation — Autoionization of Helium

C. Whelan, H. Walters, P. Marchalant, 1997 .

Proposal for the AEGIS experiment at the CERN antiproton decelerator (Antimatter Experiment: Gravity, Interferometry, Spectroscopy)

D. Sillou, S. Gninenko, V. Matveev, 2007 .

Fully differential cross sections for heavy particle impact ionization

M. McGovern, C. Whelan, H. Walters, 2009 .

Positronium scattering by Ne, Ar, Kr and Xe in the frozen target approximation

H. Walters, M. McAlinden, J. Blackwood, 2002 .

On the Influence of Using Dirac-Fock Rather Than Density Functional Potentials in the Relativistic DWBA Approximation

L. U. Ancarani, R. Dreizler, C. Whelan, 2001 .

Influence of Coulomb boundary conditions for (e, 2e) processes on the K-shell of high- Z atoms

L. U. Ancarani, R. Dreizler, C. Whelan, 1998 .

Coulomb Boundary Conditions for Relativistic (e,2e) Processes

L. U. Ancarani, R. Dreizler, C. Whelan, 1997 .

Progress Report on Relativistic (e,2e) Processes

R. Dreizler, C. Whelan, H. Walters, 1997 .

Measuring the fall of antihydrogen: the AEgIS experiment at CERN

F. Prelz, O. Røhne, H. Sandaker, 2011 .

Molecular model for annihilation rates in positron complexes

H. Walters, J. R. Mohallem, D. Assafrão, 2008 .

Positron scattering by lithium

H. Walters, M. McAlinden, Ann A Kernoghan, 1997 .

Effective collision strengths for 1s–2s and 1s–2p electron–hydrogen atom scattering

P. Burke, T. Scholz, H. Walters, 1990 .

Positron Collisions with Atoms

H. Walters, C. Campbell, M. McAlinden, 1997 .

Solid-liquid adsorption based on external mass transfer, macropore and micropore diffusion

G. Mckay, H. Walters, S. Mckee, 1987 .

On structures seen in the Ps(1s)+H(1s,2p) approximation to positron scattering by atomic hydrogen

H. Walters, M. McAlinden, Ann A Kernoghan, 1994 .

Bethe-Ridge Effects in (e,2e) on H − (Using 6Dime)

R. Allan, C. Whelan, H. Walters, 1997 .

Exact second Born amplitude for the electron impact excitation of the 1s to 2s transition in atomic hydrogen

H. Walters, A. Ermolaev, 1980 .

Triple differential cross sections for electron impact ionisation of atomic hydrogen-a coupled pseudostate calculation

H. Walters, E. P. Curran, 1987 .

Spin asymmetry parameters for electron-hydrogen scattering. I. Elastic scattering

H. Walters, W. V. Wyngaarden, 1986 .

Electron/positron collisions with positronium

H. Walters, J. Blackwood, Sharon Gilmore, 2004 .

An 18-state calculation of positron-hydrogen scattering

H. Walters, M. McAlinden, Ann A Kernoghan, 1995 .

Fragmentation of positronium with excitation and ionization of the target

C. Starrett, H. Walters, M. McAlinden, 2008 .

Excitation of atoms in collision with 'heavy' targets

H. Walters, H. Hartley, 1988 .

Summing over excited states of the target in atomic collisions

H. Walters, H. Hartley, 1987 .

Electron loss from H(2s), H(1s), He(11S), He(23S), Li(22S), H- and He- projectiles passing through the inert gases-the free-collision model

H. Walters, D. Dewangan, 1978 .

INTERPRETATION OF RELATIVISTIC (E, 2E) EXPERIMENTS IN COPLANAR ASYMMETRIC GEOMETRY : ATOMIC-NUMBER-DEPENDENT EFFECTS

L. U. Ancarani, R. Dreizler, C. Whelan, 1999 .

Electron impact ionization of lithium-spin asymmetry of the triple differential cross section

C. Whelan, H. Walters, X. Zhang, 1992 .

Electron scattering by Li, Na, and K in the frozen core Glauber approximation

H. Walters, 1973 .

LETTER TO THE EDITOR: Remark on the theory of three-body effects in relativistic (e,2e) processes

L. U. Ancarani, R. Dreizler, C. Whelan, 1998 .

On the extension of (e,2e) theory to coincidence studies of ion-atom collisions

B. Sulik, A. Godunov, C. Whelan, 2007 .

Inner Shell Electron Impact Ionization of Multi-Charged Ions

C. Whelan, H. Walters, Marco Kampp, 2005 .

On the electron impact ionization of multi-charged ions: a theoretical investigation of relativistic effects

C. Whelan, H. Walters, Marco Kampp, 2002 .

LETTER TO THE EDITOR: Structure of the triply differential cross section in the recoil region in relativistic electron-impact ionization: II. Theoretical analysis

L. U. Ancarani, R. Dreizler, C. Whelan, 1997 .

Structure of the Triply Differential Cross Section in the Recoil Region in Relativistic Electron Impact Ionization

L. U. Ancarani, R. Dreizler, M. Sauter, 1997 .

Theoretical analysis of the relativistic first order Born approximation for inner shell (e, 2e) processes

L. U. Ancarani, R. Dreizler, C. Whelan, 1996 .

Coincidence Studies of Electron and Photon Impact Ionization

C. Whelan, H. Walters, 2013 .

Theory of Electron Spin Effects in Electron-Atom Scattering

H. Walters, 1995 .

On the observation of the fine structure effect in non-relativistic (e, 2e) processes

H. Walters, J. Rasch, S. Kawano, 2004 .

Pauli Blocking In Relativista (E,2E) Collisions

R. Dreizler, C. Whelan, H. Walters, 1996 .

Relativistic (e, 2e) collisions on atomic inner shells in symmetric geometry

R. Dreizler, C. Schröter, C. Whelan, 1992 .

(e, 2e) cross sections for inner-shell ionization of argon and neon

R. Allan, C. Whelan, H. Walters, 1992 .

Doubly differential cross sections for electron loss

H. Walters, H. Hartley, 1987 .

Electron Impact Ionization of Hydrogenic Ions in Asymmetric Geometries

O. R. Spivack, R. Allan, C. Whelan, 1997 .

Electron scattering by atomic hydrogen at intermediate energies. II. Differential elastic, 1s-2s and 1s-2p cross sections and 1s-2p electron-photon coincidence parameters

M. Scott, T. Scholz, H. Walters, 1991 .

Positron scattering by atomic hydrogen at intermediate energies: 1s to 1s, 1s to 2s and 1s to 2p transitions

H. Walters, 1988 .

Ionization of atomic hydrogen and He+ by slow antiprotons

S. Sahoo, S. Mukherjee, H. Walters, 2004 .

Positronium formation in positron–noble gas collisions

H. Walters, J. Blackwood, Sharon Gilmore, 2004 .

Solution to homogeneous diffusion mass transport equation

G. Mckay, H. Walters, 1984 .

Atomic collisions involving positrons

S. Sahoo, H. Walters, Sharon Gilmore, 2005 .

Spin asymmetry parameters for electron-hydrogen scattering. II. Excitation of the n=2 states

H. Walters, W. V. Wyngaarden, 1986 .

Elastic scattering and excitation of the 1s to 2s and 1s2p transitions in atomic hydrogen by electrons to medium to high energies

H. Walters, W. V. Wyngaarden, 1986 .

On the use of pseudostates in electron-atom scattering

H. Walters, 1981 .

Exact second Born amplitude for elastic electron-hydrogen scattering

H. Walters, A. Ermolaev, 1979 .

The elastic scattering of electrons and positrons by helium and neon: the distorted-wave second Born approximation

H. Walters, D. Dewangan, 1977 .

Positron scattering by rubidium and caesium

H. Walters, M. McAlinden, Ann A Kernoghan, 1996 .

Cross-channel coupling in positron-atom scattering

H. Walters, Mary T. McAlinden, Ann A. Kernoghan, 1994 .

On the elastic scattering of electrons by lithium and the total cross sections for electron impact on lithium, sodium and potassium

H. Walters, 1976 .

Differential cross sections for elastic scattering and positronium formation for positron collisions with Ne, Ar, Kr and Xe

H. Walters, M. McAlinden, 1994 .

The Scattering of Positrons and Positronium by Atomic Targets

H. Walters, M. McAlinden, J. Blackwood, 2001 .

Positrons, Positronium, and Anti — Hydrogen

H. Walters, 1999 .

Semiempirical potentials for positron scattering by atoms

H. Walters, J. R. Mohallem, F. Arretche, 2011 .

Positronium–atom collisions

S. Sahoo, H. Walters, A. Yu, 2004, physics/0401125.

Positronium scattering by atomic hydrogen with inclusion of target excitation channels

H. Walters, M. McAlinden, J. Blackwood, 2002 .

State multipoles for the n=1 to n=2 excitation of atomic hydrogen by electron impact

H. Walters, W. V. Wyngaarden, 1985 .

Exact second Born exchange amplitude for elastic electron-hydrogen scattering

H. Walters, 1980 .

Second Born approximation to electron and positron impact excitations of the 11S to 21S transition in helium

H. Walters, B. Buckley, 1975 .

Elastic first Born matrix elements and systems containing large numbers of electrons

H. Walters, 1975 .

Second Born approximation to the elastic scattering of electrons and positrons by helium atoms

H. Walters, B. Buckley, 1974 .

LETTER TO THE EDITOR: Excitation-ionization of helium to He+(n = 2) at 365.8 eV

S. Rioual, C. Whelan, H. Walters, 2000 .

Distorted-wave Born approximation calculations of (e, 2e) reactions

C. Whelan, H. Walters, X. Zhang, 1992 .

On the electron impact ionization of H (1s) in coplanar asymmetric geometry

C. Whelan, H. Walters, E. P. Curran, 1991 .

Electron- and positron-impact ionization of inert gases

R. Campeanu, C. Whelan, H. Walters, 2018, Physical Review A.

The electron impact ionization of magnesium (2p)

C. Whelan, H. Walters, D. Madison, 2002 .

Triple differential cross sections in energy-sharing symmetric geometry for gold and uranium at relativistic impact energies

R. Dreizler, C. Whelan, H. Walters, 1995 .

Absolute triple differential cross-section measurements in energy sharing kinematics and a coplanar asymmetric geometry at 100 and 200 eV on He

F. Gélébart, C. Whelan, H. Walters, 1992 .

Electron impact ionization of the noble gases in coplanar symmetric geometry over the energy range 100 to 1000 eV

C. Whelan, H. Walters, X. Zhang, 1991 .

The electron impact ionization of Xe in coplanar symmetric geometry

H. Ehrhardt, K. Jung, C. Whelan, 1990 .

A new version of the distorted-wave impulse approximation-application to coplanar symmetric ionization

C. Whelan, H. Walters, 1990 .

(e,2e) cross sections for ionization of helium in coplanar symmetric geometry

C. Whelan, H. Walters, X. Zhang, 1990 .

Energy sharing (e,2e) collisions-ionisation of helium in the perpendicular plane

C. Whelan, H. Walters, X. Zhang, 1990 .

Second-order distorted wave calculation for electron impact ionization of hydrogen

Zhangjin Chen, C. Whelan, H. Walters, 2004 .

Electron impact ionisation of atomic hydrogen in asymmetric geometry-non-coplanar triple, double and single differential cross sections

H. Walters, E. P. Curran, 1987 .

Pseudostate testing using the second Born approximation: a comparison of exact and pseudostate results for 1s to 2s excitation of atomic hydrogen by electron impact at 54.4 eV

H. Walters, 1988 .

LETTER TO THE EDITOR: Fully differential cross sections for transfer ionization---a sensitive probe of high level correlation effects in atoms

A. Godunov, C. Whelan, H. Walters, 2004 .

Positron scattering by atomic hydrogen

D. J. Robinson, H. Walters, M. McAlinden, 1996 .

Positron-Atomic Hydrogen Scattering at Medium to High Energies

H. Walters, 1987 .

Absolute Experimental Cross Sections for Symmetric Coplanar (e,2e) Collisions of 45 to 500 eV Electrons With Helium

R. Allan, F. Gélébart, C. Whelan, 1993 .

On the Schwinger variational principle in electron-atom scattering

H. Walters, B. D. Buckely, 1975 .

(e, 2e) & Related Processes

C. Whelan, H. Walters, A. Lahmam-Bennani, 1993 .

LETTER TO THE EDITOR: First and second Born calculations of (e, 2e) excitation-ionization of helium

C. Whelan, H. Walters, D. Madison, 1999 .

Positron scattering by atoms

H. Walters, C. Campbell, M. McAlinden, 1998 .

Electron Impact Ionization of Atoms with Two Active Target Electrons

C. Whelan, H. Walters, P. Marchalant, 2005 .

On the Importance of the Second Order Term for Double Excitation Processes of Helium by Charged Particles

C. Whelan, H. Walters, D. Madison, 2001 .

Positron scattering by atomic hydrogen at intermediate energies

P. Burke, H. Walters, K. Higgins, 1990 .

POSITRON COLLISIONS WITH ONE- AND TWO-ELECTRON ATOMS

H. Walters, C. Campbell, M. McAlinden, 1998 .

Resonances above the ionization threshold in positron-hydrogen scattering

H. Walters, M. McAlinden, Ann A Kernoghan, 1994 .

The AEGIS detection system for gravity measurements

A. Fontana, S. Stapnes, O. Røhne, 2010 .

Importance of the H- channel in Ps-H scattering

H. Walters, M. McAlinden, J. Blackwood, 2002 .

SCATTERING OF POSITRONIUM BY ATOMIC HYDROGEN

H. Walters, C. Campbell, M. McAlinden, 1998 .

Formation Of A Cold Antihydrogen Beam in AEGIS For Gravity Measurements

S. Stapnes, O. Røhne, D. Sillou, 2008, 0805.4727.

Antimatter Atomic Physics

H. Walters, 2010, Science.

Overview of the present theoretical status of positron‐atom collisions

H. Walters, M. McAlinden, Ann A Kernoghan, 2008 .

Positron scattering by the negative hydrogen ion

H. Walters, M. McAlinden, J. Blackwood, 2002 .

Positronium—atom scattering

H. Walters, C. Campbell, M. McAlinden, 2000 .

Positronium scattering by helium

H. Walters, C. Campbell, M. McAlinden, 1999 .

Positron scattering by potassium

H. Walters, M. McAlinden, Ann A Kernoghan, 1996 .

Positron and positronium scattering

C. Starrett, H. Walters, 2007 .

6-dimensional integrals and supercomputers

C. Cappello, C. Whelan, H. Walters, 1998 .

Gauge discrepancies in calculations of on helium

C. Whelan, H. Walters, J. Rasch, 1998 .

On the numerical evaluation of six dimensional integrals occurring in scattering problems

C. Whelan, H. Walters, J. Rasch, 1997 .

The Double Ionisation of Helium by Both Photon and Electron Impact

C. Whelan, H. Walters, J. Rasch, 2001 .

LETTER TO THE EDITOR: (e, 2e) ionization of the 2p orbital of argon

B. Lohmann, C. Whelan, H. Walters, 1999 .

Application of 6DIME: (γ,2e) on he

C. Whelan, H. Walters, J. Rasch, 1999 .

Single ionization of helium by antiproton impact

S. Sahoo, S. Mukherjee, H. Walters, 2005 .

New Results for Double Excitation Processes with Helium Targets

C. Whelan, H. Walters, J. Rasch, 1999 .

Triply differential single ionization cross sections in coplanar and non-coplanar geometry for fast heavy ion-atom collisions

A. Cassimi, J. Ullrich, R. Moshammer, 2001 .

Revealing the effect of angular correlation in the ground-state He wavefunction: a coincidence study of the transfer ionization process

L. Schmidt, M. Schöffler, R. Dörner, 2005 .

Total cross sections for transfer ionization in fast ion–helium collisions

J. Mcguire, A. Godunov, C. Whelan, 2006 .

Energy-sharing (e ,2 e ) collisions: Ionization of the inert gases in the perpendicular plane

F. Miller, F. K. Miller, Colm T. Whelan, 2015 .

C 6+ -impact ionization of helium in the perpendicular plane: Ionization to the ground state, excitation-ionization, and relativistic effects

M. McGovern, C. Whelan, H. Walters, 2010 .

Differential ionization of a one-electron target under bare-ion impact: Application to proton-impact ionization of atomic hydrogen

C. Whelan, H. Walters, 2015 .

Positronium-atom scattering

H. Walters, M. McAlinden, F. G. R. S. MacDonald, 1996 .

Ionization in positronium collisions with noble gases

C. Starrett, H. Walters, 2007 .

Ejection of electrons and positrons in collisions of positronium with atoms

C. Starrett, H. Walters, 2007 .

Differential cross sections for fragmentation of positronium

C. Starrett, H. Walters, M. McAlinden, 2006 .

Fragmentation of positronium

C. Starrett, H. Walters, M. McAlinden, 2005 .

(Ps, E+E-)

J. Ludlow, H. Walters, 2001 .

Excited state positronium collisions with helium

C. Starrett, H. Walters, M. McAlinden, 2008 .

Positronium scattering by lithium

S. Sahoo, H. Walters, Sharon Gilmore, 2005 .

Excited state positronium collisions with the noble gases

C. Starrett, H. Walters, 2008 .

Reply to Comment on ‘Positronium scattering by Ne, Ar, Kr and Xe in the frozen target approximation’

H. Walters, M. McAlinden, J. Blackwood, 2003 .

Estimating positronium formation for plasma applications

B. Pollock, E. Stacy, C. Whelan, 2014 .

External Transfer and Homogenous Solid Phase Diffusion During the Adsorption of Dyestuffs

S. Allen, G. Mckay, H. Walters, 1984 .

LETTER TO THE EDITOR: On the position of the binary peak in relativistic e,2e collisions

L. U. Ancarani, R. Dreizler, C. Whelan, 1996 .

Differential and total cross sections for antiproton-impact ionization of atomic hydrogen and helium

M. McGovern, C. Whelan, H. Walters, 2009 .

Collisional rates and cooling within atomic hydrogen plasmas

T. Scholz, H. Walters, 1991 .

Proposed antimatter gravity measurement with an antihydrogen beam

D. Sillou, S. Gninenko, V. Matveev, 2008 .

Collision of Li2+ with Li(2s) and Li(2p): differential and total ionization; discrete excitations; elastic scattering, and total cross section

C. Whelan, H. Walters, 2020, Journal of Physics B: Atomic, Molecular and Optical Physics.

Coincidence studies of electron impact ionization of atomic inner shells

H. Walters, J. Martinez, C. T. Whelan, 2008 .

The Normalisation of the Experimental Triple Differential Cross Section of Noble Gas Atoms in Extreme Asymmetric Geometry

R. Allan, C. Whelan, H. Walters, 1997 .

The effect of positronium formation on close-coupling calculations of positron-lithium collisions

H. Walters, M. Basu, A. Ghosh, 2017 .