Publications:

Books:

Refereed Papers:

  1. Colm T Whelan (1980), Some remarks on the commutation relations for angle-angular momentum variables in quantum mechanics, J Phys A, 13, L181 - L183.

  2. Colm T Whelan (1984), On the calculation of cross-sections for electron neutral atom collisions in the Born approximation to the reactance matrix, Math Proc Camb Phil Soc, 95, 179-186.

  3. Colm T Whelan (1986), On the Bethe approximation to the reactance matrix, J Phys B, 19, 2343-2354.

  4. Colm T Whelan (1986), Cross sections for electron hydrogen collisions in the Born approximation to the reactance matrix, J Phys B, 19, 2355-2363.

  5. Colm T Whelan, M R C McDowell and P W Edmunds (1987), Electron impact excitation of atomic hydrogen, J Phys B, 20, 1587-1598.

  6. B Piraux and Colm T Whelan (1987), Some remarks on the calculation of Born partial wave integrals, Math Proc Camb Phil Soc, 101, 375-381.

  7. D L Moores and Colm T Whelan (1987), The scattering of slow electrons by lithium, J Phys B, 20, 3531-3533.

  8. Colm T Whelan and B Piraux (1987), The convergence in L of the partial wave expansion for electron-neutral atom collisions, Phys Lett A, 122, 126-128.

  9. Alan Burgess and Colm T Whelan (1987), BETRT-a procedure to evaluate cross-sections for electron hydrogen collisions in the Bethe approximation to the reactance matrix Comput Phys Commun, 47, 295-304.

  10. Colm T Whelan (1987), On the use of the Bethe approximation in the treatment of long range multipole interactions in electron neutral atom collisions, J Phys B, 20, 6641-6648.

  11. Colm T Whelan and I Shimamura (1988), The Born approximation to the reactance matrix in low energy electron molecule collisions, RIKEN Acc Rep, 21, 47-48.

  12. Colm T Whelan, H R J Walters, J Hanssen and R M Dreizler (1989), The electron impact ionisation of H(1s) in coplanar asymmetric geometry, Z Phys D, 14, 85-86.

  13. Colm T Whelan and H R J Walters (1990), A new version of the distorted wave impulse approximation-applications to large angle scattering, J Phys B, 23, 2989-2995.

  14. X Zhang, Colm T Whelan and H R J Walters (1990), (e,2e) cross sections for the ionisation of helium in coplanar symmetric geometry, J Phys B, 23, L509-L516.

  15. T Rösel, K Jung, H Ehrhardt, X Zhang,Colm T Whelan and H R J Walters (1990), The electron impact ionisation of Xe in coplanar symmetric geometry, J Phys B, 23, L649-L653.

  16. Colm T Whelan, H R J Walters, J Hanssen and R M Dreizler (1991), High energy electron impact ionisation of H(1s) in coplanar asymmetric geometry Aust J Phys, 44, 39-58.

  17. Curran E P, Colm T Whelan and H R J Walters (1991), On the electron impact ionisation of H(1s) in coplanar asymmetric geometry ,J Phys B, 24, L19-L25.

  18. X Zhang, Colm T Whelan and H R J Walters (1990), Energy sharing (e,2e) collisions- ionisation of Helium in the perpendicular plane, J Phys B, 23, L173-L178.

  19. X Zhang, Colm T Whelan and H R J Walters (1991), Electron impact ionisation of the noble gases in coplanar symmetric geometry over the energy range 100 to 1000 eV, Z Phys D, 18, 309-310.

  20. X Zhang, Colm T Whelan, H R J Walters, R J Allan, Bickert P, Hink W, Schönberger (1992), (e,2e) cross sections for inner shell ionization of Argon and Neon, J Phys B, 25, 4325-4335.

  21. M Gailitis and Colm T Whelan (1992), In Memorium Raymond Peterkop, Z Phys D, 23, 285-286.

  22. L Avaldi, R Camilloni, P Letardi, G Stefani,I E Mc Carthy, X Zhang, H R J Walters, Colm T Whelan (1992), Absolute triple differential cross sections for Helium at 300eV, Z Phys D, 23, 341-345.

  23. M Cherid, F Gélébart, A Pochat, R J Tweed, X Zhang, Colm T Whelan, H R J Walters (1992), Absolute triple differential cross-section measurements in energy sharing kinematics and a coplanar asymmetric geometry at 100 and 200 eV on He, Z Phys D, 23, 347-351.

  24. H R J Walters, H Ast, Colm T Whelan, R M Dreizler, H Graf, C D Schröter, J Bonfert and W Nakel (1992), Relativistic (e,2e) collisions on atomic inner shells in symmetric geometry, Z Phys D, 23, 353-357.

  25. X Zhang, Colm T Whelan, H R J Walters (1992), Distorted wave Born approximation calculations of (e,2e) reactions, Z Phys D, 23, 301-308.

  26. X Zhang, Colm T Whelan and H R J Walters (1992), Electron impact ionization of lithium-spin asymmetry of the triple differential cross section, J Phys B, 25, L457-L462.

  27. Colm T Whelan, X Zhang, H R J Walters (1992), (e,2e) processes with noble gas targets in P J O Teubner and E Weigold edited Correlations and Polarization in Electronic and Atomic Collisions and (e,2e) reactions, IOP publishing, Conference Series, 122, 149-160.

  28. Colm T Whelan, H R J Walters, R M Dreizler (1993), Some remarks on the use of effective charges in the study of electron impact ionisation processes, Austral J Phys, 46, 241-8.

  29. L Avaldi, R Camilloni, R Multari, G Stefani, X Zhang, H R J Walters and Colm T Whelan (1993), Coplanar asymmetric (e,2e) experiments on Xenon 4d and 5p orbitals Phys Rev A, 48, 1195-1203.

  30. A Pochat, X Zhang, Colm T Whelan, H R J Walters, R J Tweed, F Gélébart, M Cherid and R J Allan (1993), Absolute low energy experimental cross sections for (e,2e) processes on Helium, Phys Rev A, 47, R3483-3486.

  31. Colm T Whelan (1993) On the evaluation of integrals over three spherical bessel functions, J Phys B, 26, L823-L825.

  32. Colm T Whelan, R J Allan and H R J Walters (1993), PCI, polarisation and exchange effects in (e,2e) collisions, Journal de Physique IV, Colloque C6, Supplément au Journal de Physique II, 3, 39-49.

  33. Colm T Whelan, H R J Walters, X Zhang (1993),(e,2e), effective charges, distorted waves and all that! , in Whelan et al, edited, (e,2e) & related processes, Kluwer, Dordrecht, 1-32.

  34. H R J Walters, X Zhang, Colm T Whelan (1993) Directions in (e,2e) and related processes in Whelan et al, edited, (e,2e) & related processes, Kluwer, Dordrecht, 33-74.

  35. A Pochat, R J Tweed, Colm T Whelan, X Zhang, H R J Walters, R J Allan, F Gélébart and M Cherid (1993), Absolute experimental cross sections for symmetric coplanar (e,2e) collisions of 45 to 500eV electrons with Helium in Whelan et al, edited, (e,2e) & related processes, Kluwer, Dordrecht, 101-118.

  36. X Zhang, Colm T Whelan, H R J Walters, (1993), Distorted wave calculations of the triple differential cross-sections for inner shell ionization in Whelan et al, edited, (e,2e) & related processes, Kluwer, Dordrecht, 409-421.

  37. Colm T Whelan, R J Allan, J Rasch, H R J Walters, X Zhang, J Röder, K Jung and H Ehrhardt (1994), Coulomb 3-body effects in (e,2e) Collisions: the ionisation of H in coplanar symmetric geometry, Phys Rev A, 50, 4394-4396.

  38. S Keller and Colm T Whelan (1994), On the plane wave Born approximation for relativistic (e,2e) processes, J.Phys.B, 27,L771-776.

  39. H Ast, S Keller, Colm T Whelan, H R J Walters, R M Dreizler (1994), Electron impact ionization of the K-shell of silver and gold in coplanar asymmetric geometry, Phys. Rev A, 50, R1-R3.

  40. S Keller, Colm T Whelan, H Ast, H R J Walters, R M Dreizler (1994), Relativistic Distorted Wave Born Calculations for (e,2e) processes on inner shells of heavy atoms, Phys. Rev A, 50, 3865-3877.

  41. Colm T Whelan, H Ast, S Keller, H R J Walters, R M Dreizler (1995), Triply differential cross sections in energy sharing symmetric geometry for gold and uranium at relativistic impact energies, J Phys B, 28, L33-L39.

  42. Colm T Whelan, H Ast, H R J Walters, S Keller and R M Dreizler (1996), Relativistic energy sharing (e,2e) in coplanar constant J 12 geometry, Phys Rev A, 53, 3262- 3270.

  43. S Keller, R M Dreizler, L U Ancarani, H R J Walters, H Ast and Colm T Whelan (1995), Theoretical analysis of the relativistic first order Born approximation for inner shell (e,2e) processes, Z Phys D, 37, 191-196.

  44. J Röder, J Rasch, K Jung, Colm T Whelan, H Ehrhardt, R J Allan, H R J Walters (1996), Coulomb 3 body effects in low energy electron impact ionization of H(1s), Phys Rev A, 53, 225-233.

  45. S Rioual, A Pochat, F Gélébart, R J Allan, Colm T Whelan and H R J Walters (1995), Low and intermediate energy coplanar symmetric (e,2e) cross sections for the ionisation of neon, J Phys B, 28, 5317-5325.

  46. H Ast, Colm T Whelan, S Keller, J Rasch, H R J Walters and R M Dreizler (1995), Pauli blocking in relativistic (e,2e) processes, in Campbell and Kleinpoppen, edited, The Farago Symposium, Selected Topics in Electron Physics, Plenum, New York.

  47. Colm T Whelan, H R J Walters, S Keller, H Ast, J Rasch and R M Dreizler (1996), Inner shell (e,2e) processes, Canadian Journal of Physics, 74, 804-810.

  48. S Keller, H Ast, Colm T Whelan, H R J Walters and R M Dreizler (1996), Theory of (e,2e) processes with spin polarized relativistic electrons, Phys Rev A, 53, 2295-2302.

  49. S P Lucey, Colm T Whelan, R J Allan, H R J Walters (1995), (e,2e) on hydrogen minus,H-, J Phys B, 29, L489-495.

  50. H Ast, S Keller, R M Dreizler, Colm T Whelan, L U Ancarani and H R J Walters (1996), On the position the binary peak in the relativistic (e,2e) collisions, J Phys B, 27, L585-L590.

  51. J Rasch and Colm T Whelan (1997), On the numerical evaluation of a class of integrals occurring in scattering problems, Comput Phys Commun, 101, 31-46.

  52. J Rasch, S P Lucey, Colm T Whelan and H R J Walters (1997) On the numerical evaluation of six dimensional integrals occuring in scattering problems, Computer Physics Communications, 101, 197-205.

  53. J Rasch, M Zitnik, L Avaldi, Colm T Whelan, G Stefani, R Camilloni, R J Allan and H R J Walters, (1997), A theoretical/experimental investigation of the triple differential cross section for electron impact ionization of Kr 4p and Xn 5p, Phys Rev A, 56, 4644-4655.

  54. J Rasch, Colm T Whelan, R J Allan, S P Lucey and H R J Walters (1997), Strong interference effects in the triple differential cross section of neutral atom targets, Phys Rev A, 56, 1379-1383.

  55. R M Dreizler, H Ast, S Keller, Colm T Whelan, L U Ancarani, and H R J Walters, (1997), Structure of the triply differential cross section in the recoil region in relativistic electron impact ionization II. Theoretical analysis, J Phys B, 30, L77-80.

  56. S Rioual, B Rouvello B, A Pochat, J Rasch, H R J Walters, Colm T Whelan, R J Allan (1997), Triple differential cross sections for the electron impact ionization of argon and neon J.Phys.B, 30, L475-L480.

  57. S P Lucey, J Rasch, Colm T Whelan, H R J Walters (1997), Aspects of (e,2e): 6 Dimensional Integral Method, in Duggan J L and Morgan I L edited Proceedings of International Conference on the Application of Accelerators in Industry and Research, American Institute of Physics, Conf Proc, 392, 205-208.

  58. Pascale J Marchalant, Colm T Whelan and H R J Walters (1997), (e,2e) excitation-ionization and excitation autoionization of helium, in Colm T Whelan and H R J Walters, edited, Coincidence Studies of Electron & Photon Impact Ionization, Plenum, 21-44.

  59. J Rasch, Colm T Whelan, R J Allan, S P Lucey and H R J Walters (1997), An explanation of the structure observed in out of plane symmetric measurements on helium, in Colm T Whelan and H R J Walters, edited, Coincidence Studies of Electron & Photon Impact Ionization, Plenum, New York, 185-194.

  60. R M Dreizler, Colm T Whelan, H R J Walters, H Ast and S Keller (1997) Progrss report on relativistic (e,2e) processes, in Colm T Whelan and H R J Walters edited Coincidence Studies of Electron & Photon Impact Ionization, Plenum, 199-206.

  61. K-H Besch, T Kull, M Sauter, W Nakel, H Ast, S Keller, Colm T Whelan, L U Ancarani and Walters (1997) Structure in the recoil region in relativistic electron impact ionization in Colm T Whelan and H R J Walters edited Coincidence Studies of Electron & Photon Impact Ionization, Plenum, New York, 207-214.

  62. L U Ancarani, S Keller, H Ast, Colm T Whelan, H R J Walters and R M Dreizler (1997), Coulomb boundary conditions for relativistic (e,2e) processes in Colm T Whelan and H R J Walters, edited, Coincidence Studies of Electron & Photon Impact Ionization, Plenum, New York, 215-220.

  63. Rath-Spivack O, J Rasch, Colm T Whelan, R J Allan and H R J Walters (1997), Electron impact ionization of hydogenic ions in asymmetric geometry in Colm T Whelan and H R J Walters, edited, Coincidence Studies of Electron & Photon Impact Ionization, Plenum, New York, 279-286.

  64. Lucey S, J Rasch, Colm T Whelan and H R J Walters (1997) Bethe ridge effects in (e,2e) on H-(using 6DIME),in Colm T Whelan and H R J Walters, edited, Coincidence Studies of Electron & Photon Impact Ionization, Plenum, New York, 287-296.

  65. J Rasch, Colm T Whelan, R J Allan, and H R J Walters (1997), The normalization of the experimental triple differential cross section of noble gas atoms in extreme asymmetric geometry, in Colm T Whelan and H R J Walters, edited, Coincidence Studies of Electron & Photon Impact Ionization, Plenum, New York, 305-318.

  66. L U Ancarani, S Keller, H Ast, Colm T Whelan, H R J Walters and R M Dreizler (1998), Influence of Coulomb boundary conditions for (e,2e) processes on the K shell of high Z atoms, J Phys B, 31, 609-623.

  67. Rath-Spivack, J Rasch, Colm T Whelan, R J Allan and H R J Walters (1998), (e,2e) processes with positive-ions in coplanar symmetric geometry, J Phys B, 31, 845-858.

  68. S P Lucey, J Rasch, Colm T Whelan and H R J Walters, (1998), Gauge discrepancies in the calculation of (g ,2e) on helium, J Phys B, 31, 1237-1258.

  69. Pascale J Marchalant, Colm T Whelan and H R J Walters, (1998), Second order effects in (e,2e) excitation-ionization of Helium to He+(n=2), J Phys B, 31, 1141-1178.

  70. Rouvellou B, S Rioual, Röder J, A Pochat, J Rasch, Colm T Whelan, H R J Walters and R J Allan (1998), Coulomb three body effects in the electron impact ionization of argon, Phys Rev A, 57, 3621-3626.

  71. M Streun, G Baum, W Blask, J Rasch, I Bray, S Jones, D H Madison, H R J Walters and Colm T Whelan, (1998), Spin dependence of (e,2e) collisions on lithium at 54.4 eV, J.Phys B, 31, 4401-4411.

  72. S Keller, H Ast, Ancarani L U, Colm T Whelan, H R J Walters (1998), Remark on the theory of 3 body effects in relativistic (e,2e) processes, J Phys B, 31, L873-L876.

  73. J Rasch, Colm T Whelan, S P Lucey, C Dal Cappello, H R J Walters (1998), 6 dimensional integrals and supercomputers, Computer Physics Commun, 114, 378-384.

  74. W Nakel and Colm T Whelan, (1998), Relativistic (e,2e) Processes, Physics Reports, 315, 409-471.

  75. J Rasch and Colm T Whelan (1999), Partial Wave Integrals , in R J Allan, M F Guest, A D Simpson, D S Hentry and D A Nicole, edited, High Performance Computing, Kluwer/Plenum, New York, 287-294.

  76. J Rasch, Colm T Whelan, S P Lucey and H R J Walters,(1999), Application of 6DIME:(g ,2e) on He, in R J Allan, M F Guest, A D Simpson, D S Hentry and D A Nicole, edited, High Performance Computing, Kluwer/Plenum, New York, 303-308.

  77. D W Essex, Nellist P and Colm T Whelan (1999), Limitations of the dipole approximation in calculations for the scanning transmission microscope, Ultra Micros, 80, 183-192.

  78. S P Lucey, J Rasch and Colm T Whelan, (1999), On the use of analytic ansatz wavefunctions in the study of (e,2e) processes, Proc Roy Soc, A455, 349-383.

  79. I Taouil, A Duguet, A Lahmam-Bennani, B Lohmann, J Rasch, Colm T Whelan and H R J Walters (1999), (e,2e) ionization of the 2p orbital of argon, J Phys B, 32, L5-L11.

  80. S Keller, R M Dreizler, L U Ancarani, H Ast, H R J Walters and Colm T Whelan (1999), Interpretation of relativistic (e,2e) experiments in coplanar asymmetric geometry: atomic number dependent effects, Phys Rev A, 59, 1284-1290.

  81. D W Essex and Colm T Whelan (1999), Grazing angle (e,2e) calculations for surface adsorbates, Journal de Physique, IV, Pr 6, 165-169.

  82. Colm T Whelan and D W Essex (1999), Ionization theory in the scanning transmission electron microscope (STEM), Journal de Physique, IV, Pr 6, 175-179.

  83. S Keller, L U Ancarani, H Ast, H R J Walters and Colm T Whelan (1999), Analysis of relativistic (e,2e) experiments in coplanar asymmetric geometry, Journal de Physique,IV, Pr 6, 215-218.

  84. Ancarani L U, H Ast, S Keller, R M Dreizler, Colm T Whelan and H R J Walters, (1999), Analysis of semi-relativistic approximations for relativistic (e,2e) experiments, Journal de Physique, IV, Pr 6, 225-228.

  85. Pascale J Marchalant, J Rasch, Colm T Whelan, Madison D H, and H R J Walters, (1999), First and second Born calculations of (e,2e) excitation-ionization of helium, J Phys B, 32, L705-L710.

  86. S J Cavanagh, B Lohmann, J Rasch, Colm T Whelan, H R J Walters,(1999), Experimental and theoretical determination of the triple differential cross section for Kr(4p)electron impact ionization, Phys Rev A, 60, 2977-2982.

  87. Colm T Whelan, (1999), Towards an understanding of fragmenation processes in atomic collisions, Science, 286, 2457.

  88. Colm T Whelan, (1999), (e,2e) Processes, in Whelan et al, edited, New Directions in Atomic Physics, Kluwer/Plenum, New York, 87-104.

  89. D W Essex and Colm T Whelan (1999), On the use of the (e,2e) technique as a surface probe in Whelan et al, edited, New Directions in Atomic Physics, Kluwer/Plenum, New York, 301-308.

  90. D W Essex and Colm T Whelan (1999), Some remarks on the scattering of electrons from a metalic surfaces, in Whelan et al, edited, New Directions in Atomic Physics, Kluwer/Plenum, New York, 315-318.

  91. A A Pinkás, M A Coplan, J H Moore, S Jones, D H Madison, J Rasch, Colm T Whelan, R J Allan and H R J Walters,(1999), Triple differential cross sections for electron impact ionization of Helium, Neon and Argon from 0.1 to 1 keV, theory and experiment compared, in Whelan et al, edited, New Directions in Atomic Physics, Kluwer/Plenum, New York, 319-332.

  92. J Rasch and Colm T Whelan (1999), Characteristics of low energy (e,2e) processes, in Whelan et al, edited, New Directions in Atomic Physics, Kluwer/Plenum, New York, 345-354.

  93. Pascale J Marchalant, J Rasch, Colm T Whelan and H R J Walters, (1998), New results for double excitation processes with helium targets in Whelan et al, edited, New Directions in Atomic Physics, Kluwer/Plenum, New York, 355-362.

  94. J Rasch and Colm T Whelan, (1999), Three body effects in low energy (e,2e) processes, in Proceedings of the 15th International Conference on the Application of Accelerators in Research and Industry,edited by J L Duggan and I L Morgan, AIP publishing, New York, 118-121.

  95. Colm T Whelan (1999) Inner Shell Ionization Processes, in K K Sud and U N Upadhyaya, edited, Trends in Atomic and Molecular Physics, Kluwer/Plenum, New York, 59-84.

  96. Pascale J Marchalant, B Rouvello, J Rasch S Rioual, Colm T Whelan, A Pochat, D H Madison and H R J Walters (2000), Excitation-ionization of helium to He+(n=2) at 365.8 eV, J Phys B, 33, L749-L754.

  97. D W Essex, N C Pyper and Colm T Whelan (2000), Calculations of the He, 1s-2p energy shift observed in STEM experiments on helium bubbles in irradiated materials, in C Kiely edited, Electron Microscopy and Analysis, 1999, Institute of Physics Publishing, Bristol, 161, 187-190.

  98. Colm T Whelan, (2000), Recent advances in our understanding of (e,2e) processes, in Y. Itikawa K Okuno, H Tanaka, A Yagishita, M Matsuzawa, edited, The Physics of Electronic and Atomic Collisions, American Institute of Physics, New York, 241-255.

  99. N C Pyper, D W Essex and Colm T Whelan, (2001), The 1s2 -> 1s2p(1P)excitation energy for helium atoms in liquid helium, solid helium and helium bubbles in metals, Phil Mag B, 81,91-115.

  100. J Rasch, Pascale J Marchalant , Colm T Whelan, H R J Walters (2001), The double ionisation of Helium by both photon and electron impact, in J Berakdar and J Kirschner, edited, Many-Particle Spectroscopy of Atoms, Molecules and Surfaces, Kluwer/Plenum, New York, 231-244

  101. M Kampp, Colm T Whelan, H R J Walters, R M Dreizler, H-J Ast, S Keller and L U Ancarani (2001), On the influence of using Dirac-Fock rather than density functional potentials in the relativistic DWBA approximation, in J Berakdar and J Kirschner, edited, Many-Particle Spectroscopy of Atoms, Molecules and Surfaces, Kluwer/Plenum, New York, 91-98

  102. Pascale J Marchalant, J Rasch, Colm T Whelan, D H Madison and H R J Walters, (2001), First and second order effects in the (e,2e) excitation-ionization of Helium, in J Berakdar and J Kirschner, edited, Many-Particle Spectroscopy of Atoms, Molecules and Surfaces, Kluwer/Plenum, New York,307-318

  103. P J Roche, S Kawano, Colm T Whelan, J Rasch, H R J Walters, J Langlois and C Tannous (2001), Exact versus local exchange in distorted wave Born calcualtions of electron impact ionization in J Berakdar and J Kirschner, edited, Many-Particle Spectroscopy of Atoms, Molecules and Surfaces, Kluwer/Plenum, New York, 81-90.

  104. M Schulz, R Moshammer, D H Madison, R E Olson, P Marchalant, Colm T Whelan, H R J Walters, S Jones, M Foster, H Kollmus,A Cassimi and J Ullrich (2001) Triply differential single ionization cross sections in coplanar and non-coplanar geometry for fast heavy ion-atom collisions J.PhysB,34,L305-311

  105. M A Haynes, B Lohmann, D A Biava, R P McEachran, Colm T Whelan and D H Madison (2002), Low energy inner valence of the rare gases, in D H Madison and M Schulz edited Correlations, Polarization and Ionization in Atomic Systems, AIP, publishing, 19-23

  106. Marco Kampp, N C Pyper, and Colm T Whelan (2002), The role of final state potentials in the distorted wave calculation of inner shell ionisation processes, in D H Madison and M Schulz edited Correlations, Polarization and Ionization in Atomic Systems, AIP, publishing, 286-290

  107. D A Biava, H P Saha, E Engel, R M Dreizler, R P McEachran, M A Haynes, B Lohmann, Colm T Whelan and D H Madison (2002), Exchange effects in the low energy impact ionisation of the inner and outer shells of argon J.PhysB,35,293-307

  108. Marco Kampp, P J Roche, Colm T Whelan, D H Madison, J Rasch and H R J Walters (2002), The electron impact ionisation of magnesium(2p), J Phys B, 35, 2325-2336

  109. J Rasch, H R J Walters, Pascale J Marchalant, Colm T Whelan and D H Madison (2002), Double Excitation Processe:(e,2e) and (e,3e) on Helium in J Burgdörfer, J S Cohen, S Datz and C R Vane,Photonic, Electronic and Atomic Collisions, Rinton Press, New Jersey, 448-459

  110. Marco Kampp, Colm T Whelan and H R J Walters (2002), On the electron impact ionization of multi-charged ions: a theoretical investigation of relativistic effects J. Phys. B, 35, 3923-3936

  111. Marco Kampp, N.C. Pyper, Colm T. Whelan, H.R.J. Walters, (2003), Spin asymmetries in spatially resolved processes of ionization of heavy atoms by relativistic electrons, Phys Rev A, 67, 044702-(4)

  112. D W Essex, N C Pyper, Colm T Whelan, Electron Scattering as a Probe of Matter, in Colm T Whelan and J H McGuire, edited, From the Atomic to the Nano Scale, ODU,39-48

  113. Marco Kampp, N.C. Pyper, Colm T. Whelan, On the evaluation of a class of integrals occurring in relativistic scattering theory, , J H McGuire, edited, From the Atomic to the Nano Scale, ODU,49-53

  114. Marco Kampp, Colm T Whelan and H R J Walters (2003) Inner Shell Electron Impact Ionization of Multi-Charged Ions in Colm T Whelan and N J Mason edited Electron Scattering from Atoms, Molecules, Nuclei and Bulk Matter, Kluwer/Plenum, New York, 69-76

  115. Satoyuki Kawano, J Rasch, Peter J P Roche and Colm T Whelan (2003) A Study of Iterative Methods for Integro-Differential Equations of Electron ,Atom Scattering in, 77-86

  116. Pascale J Marchalant, Colm T Whelan and H R J Walters(2004), Electron Impact Ionization of Atoms with Two Active Target Electrons in Colm T Whelan and N J Mason edited Electron Scattering from Atoms, Molecules, Nuclei and Bulk Matter, Kluwer/Plenum, New York, 217-224

  117. Peter J P Roche, R K Nesbet and Colm T Whelan(2004) (gamma ,2e) and (e,2e) using a 2-Electron R operator Formalism in Colm T Whelan and N J Mason edited Electron Scattering from Atoms, Molecules, Nuclei and Bulk Matter, Kluwer/Plenum, New York, 313-328

  118. M. Kampp, S. Kawano, P.J.P. Roche, J. Rasch, D.H. Madison, H.R.J. Walters and Colm T.Whelan(2004) On the observation of the fine structure effect in non-relativistic (e,2e)processes, Eur.Phys.J.D,29,17-19

  119. A L Godunov, Colm T Wheland H R J Walters,(2004) Fully differential cross sections for transfer ionisation- a sensitive probe of correlation in atoms, J Phys B, 37,L201-L208

  120. Zhang jin Chen, DH Madison, Colm T Whelan and HRJWalters(2004) Second-order distorted wave calculation for electron impact ionization of hydrogen, J Phys B, 37, 981-995

Conference Proceedings and Reports:

  1. M R C Mc Dowell MRC and Colm T Whelan (1986), in W Eissner, edited, Low energy collision theory techniques for atomic excitation and radiative data, Daresbury Laboratory Report DL/SCI/R24(theory), 15-18.

  2. Colm T Whelan (1987), Electron impact excitation and ionisation of atomic hydrogen in Information Quarterly for Atomic Processes and Applications, 28, 52-60, Daresbury Laboratory.

  3. Colm T Whelan, H R J Walters, J Hanssen and R M Dreizler (1989), The triple differential cross section for high energy electron impact ionisation of H(1s) in coplanar asymmetric geometry- a study of screening effects in a simple first order model in H Ehrhardt, edited, 2nd European Conference on (e,2e) Collisions Related Problems, (Kaiserslautern 1989), Invited Papers & Progress Reports, 242-255.

  4. Colm T Whelan and H R J Walters (1989) The distorted wave impulse approximation for (e,2e) collisions in symmetric geometry in H Ehrhardt, edited, 2nd European Conference on (e,2e) Collisions Related Problems, (Kaiserslautern 1989), Invited Papers & Progress Reports, 262-274.

  5. X. Zhang, Colm T Whelan and H R J Walters (1989), DWBA calculations of coplanar symmetric (e,2e) collisions with the inert gases He,Ne,Ar,Kr,Xe in H Ehrhardt, edited, 2nd European Conference on (e,2e) Collisions Related Problems,(Kaiserslautern 1989), Invited Papers & Progress Reports, 275-282.

  6. Colm T Whelan, X Zhang, H R J Walters (1990), Double scattering effects in electron impact ionisation, in G Stefani edited Proceedings European Conference on (e,2e) Collisions and Related Problems, (Rome 1990), Invited Papers & Progress Reports,31-45, CNR, Rome.

  7. Colm T Whelan, H R J Walters and R M Dreizler (1990), On the Peterkop relation, in G Stefani, Proceedings European Conference on (e,2e) Collisions and Related Problems (Rome 1990) Invited Papers & Progress Reports, CNR, Rome 223-233.

  8. X Zhang, Colm T Whelan and H R J Walters (1990), Triple differential cross section and spin asymmetry parameters for electron impact ionization of lithium in G Stefani Proceedings European Conference on (e,2e) Collisions and Related Problems (Rome 1990), Invited Papers & Progress Reports, CNR,Rome, 264-273.

  9. Colm T Whelan, H R J Walters, J Hanssen, R M Dreizler and R J Allan (1990), Differential and total cross-sections for high energy electron impact ionisation of H(1s) in coplanar symmetric geometry in R J Allan and M F Guest, edited, Intel iPSC2 Workshop Proceedings, Daresbury, March 6, 1990, Parallel Computer User Group, Daresbury Laboratory Proceedings.

  10. Colm T Whelan, H R J Walters, R M Dreizler (1990), Empirical determination of effective charges in electron impact ionisation, Rutherford Appleton Report, RAL 90-081.

  11. H Ast, H R J Walters, Colm T Whelan, and R M Dreizler (1992), Die Bedentung der Spin-Flipüberergänge in 1.Bornscher Näherung in(e,2e) Prozessen bei Relativistischen Einschußenergien 13. Arbeitsbericht, Arbeitsgruppe Energieriche Atomare Stöße, edited, B Friche.

  12. Colm T Whelan, R M Dreizler, H R J Walters, J Hanssen, R J Allan (1992), Differential and total cross-sections for high energy electron impact ionisation of H(1s) in coplanar asymmetric geometry in R J Allan, M F Guest and P J Durham, edited Parallel Supercomputing 1992, Daresbury Laboratory.

  13. X Zhang, Colm T Whelan, H R J Walters, R J Allan, P Bickert, W Hink, P Schönberger (1992), (e,2e) cross sections for inner shell ionization of Argon and Neon in R J Allan, M F Guest and P J Durham, edited Parallel Supercomputing 1992, Daresbury Laboratory.

  14. Colm T Whelan, H R J Walters, R J Allan, (1992) (e,3e) processes in electron scattering from helium atoms in R J Allan, M F Guest and P J Durham, edited Parallel Supercomputing 1992, Daresbury Laboratory.

  15. X Zhang, Colm T Whelan and H R J Walters, (1992), (e,2e) collisions with He, Ar and Xe targets, Information Quaterly for Atomic Processes and Applications (Daresbury Laboratory).

  16. H Ast, S Keller, Colm T Whelan, H R J Walters and R M Dreizler (1994), Elastische elektronenstreuung an Coulombpotentialen und potentialen neutraler atome bei relativistischen einschußenergien, 15. Arbeitsbericht, Arbeitsgruppe Energieriche Atomare Stöße, edited, B Friche.

  17. S Keller, H Ast, Colm T Whelan, H R J Walters and R M Dreizler (1994), Relativistische DWBA für K-schalenionisation von Gold und Silber in koplanar asymmetrischer Geometrie, 15. Arbeitsbericht, Arbeitsgruppe Energieriche Atomare Stöße, edited B Friche.

  18. J Rasch, Colm T Whelan, R J Allan, H R J Walters (1994), Coulomb 3 body effects in (e,2e) collisions, 15. Arbeitsbericht, Arbeitsgruppe Energiereiche Atomare Stöße, edited B Fricke.

  19. S Keller, Dreizler R.M., H R J Walters, H Ast and Colm T Whelan (1995), Zur Theorie relativistischer (e,2e) -Prozesse mit spinpolarisierten Elektronen 16. Arbeitsbericht, Arbeitsgruppe Energieriche Atomare Stöße, edited B Friche.

  20. S Keller, H Ast, Colm T Whelan, H R J Walters and R M Dreizler (1995), Voll relativistische Verallgemeinerung der 1. Bornschen Näherung für Beschreibung von (e,2e)-Prozessen, 16. Arbeitsbericht, Arbeitsgruppe Energieriche Atomare Stöße, edited B Friche

  21. Colm T Whelan, H R J Walters, J Rasch, H Ast, S Keller and Dreizler RM (1996), Coincidence studies of the electron impact ionization of the inner shells of neutral atoms, in Autoionization in Atoms, edited V. Balashov, Moscow University Press.

  22. H Ast, S Keller, R M Dreizler, Colm T Whelan and H R J Walters (1996), Bemerkungen zur Position des Binären Maximums im dreifach differentiellen (e,2e) Wirkungsquerschnitt in erster Bornscher Näherung, in 17. Arbeitsbericht, Arbeitsgruppe Energieriche Atomare Stöße, edited B Friche.

  23. L U Ancarani L U, H Ast, S Keller, R M Dreizler, Colm T Whelan and H R J Walters (1996), Erste Untersuchungen zum Einflu der Coulomb Randbedingungen in relativistischen (e,2e) Prozessen,17. Arbeitsbericht, Arbeitsgruppe Energieriche Atomare Stöße, edited, B Friche.

  24. H Ast, S Keller, R M Dreizler, K-H Besch, M Sauter, T Kull, W Nakel, L U Ancarani, Colm T Whelan and H R J Walters (1997), Struktur im recoil Bereich des dreifach differentiellen (e,2e)Wirkungsquerschnitt bei relativistischen Einschuenergien 18. Arbeitsbericht, Arbeitsgruppe Energieriche Atomare Stöße, edited B Friche.

  25. M Sauter,N Keller, W Nakel, S Keller, H Ast, R M Dreizler, L U Ancarani, Colm T Whelan and H R J Walters (1998), Winkelverteilungen der Electronen bei der K-Schalenionisation in relativistischen (e,2)- Prozessen: Experiment und Theorie in 19. Arbeitsbericht, Arbeitsgruppe Energieriche Atomare Stöße, edited Dreizler et al.

  26. H Ast, S Keller, R M Dreizler, T Kull, W Nakel, L U Ancarani, Colm T Whelan and H R J Walters (1998), Symmetrieaspkte in relativistischen (e,2e)-Experimenten, in 19. Arbeitsbericht, Arbeitsgruppe Energieriche Atomare Stöße, edited Dreizler et al.