J. J. Langmuir and T. Jones, Collisions Between Electrons and Gas Molecules, Physical Review, vol.25, issue.3, p.357, 1928.
DOI : 10.1103/PhysRev.26.585

A. L. Hughes and J. H. Mcmillen, Inelastic and Elastic Electron Scattering in Argon, Physical Review, vol.27, issue.4, p.585, 1932.
DOI : 10.1017/S030500410000935X

H. Ehrhardt, M. Schulz, T. Tekaat, and K. William, Ionization of Helium: Angular Correlation of the Scattered and Ejected Electrons, Physical Review Letters, vol.175, issue.3, p.89, 1969.
DOI : 10.1103/PhysRev.175.151

A. Bennani, H. F. Wellenstein, C. Dal-cappello, M. Rouault, and A. Duguet, Absolute triple differential cross sections for high-energy electron impact ionisation of helium, Journal of Physics B: Atomic and Molecular Physics, vol.16, issue.12, p.2219, 1983.
DOI : 10.1088/0022-3700/16/12/017

M. Brauner, J. S. Briggs, and H. Klar, Triply-differential cross sections for ionisation of hydrogen atoms by electrons and positrons, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.22, issue.14, p.2265, 1989.
DOI : 10.1088/0953-4075/22/14/010

M. H. Mittleman, Single and Double Ionization of He by Electrons, Physical Review Letters, vol.11, issue.12, p.498, 1966.
DOI : 10.1103/PhysRevLett.16.498

I. J. Kang, W. C. Henneberger, and W. D. Flod, Importance of exchange scattering in double ionization of He atoms by electron impact, Journal of Physics B: Atomic and Molecular Physics, vol.1, issue.3, p.524, 1968.
DOI : 10.1088/0022-3700/1/3/129

T. A. Carlson, Double Electron Ejection Resulting from Photo-Ionization in the Outermost Shell of He, Ne, and Ar, and Its Relationship to Electron Correlation, Physical Review, vol.13, issue.1, p.142, 1967.
DOI : 10.1103/PhysRevLett.13.762

F. F. Fayard, J. Chiari, F. Mullerand, and J. P. , Energy Dependence for Single and Double Ionization by Electron Impact Between 250 and 2200 eV, The Journal of Chemical Physics, vol.64, issue.1, p.478, 1967.
DOI : 10.1007/BF01380902

R. J. Tweed, Double ionization by electron impact: I. General theory, Journal of Physics B: Atomic and Molecular Physics, vol.6, issue.2, p.259, 1973.
DOI : 10.1088/0022-3700/6/2/010

V. G. Neudatchin, Y. F. Smirnov, A. V. Pavlitchenkov, and V. G. Levin, On the study of the double Fourier transforms of the electron wavefunctions for atoms and molecules using the (??, 2e) and (e, 3e) processes at high energies, Physics Letters A, vol.64, issue.1, p.31, 1977.
DOI : 10.1016/0375-9601(77)90516-3

J. A. Carlson and M. O. Krause, -Shell Ionization in Neon Measured as a Function of Photoelectron Velocity, Physical Review, vol.139, issue.4A, p.1057, 1965.
DOI : 10.1103/PhysRev.139.A619

C. R. Garibotti and J. E. Miraglia, -hydrogen-atom collision, Physical Review A, vol.93, issue.2, p.572, 1980.
DOI : 10.1103/PhysRev.93.785

Y. V. Popov, C. Dal-cappello, B. Joulakian, and N. M. Kuzmina, On the mechanisms of (e, 3e) collisions with fast projectiles, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.27, issue.8, p.1599, 1994.
DOI : 10.1088/0953-4075/27/8/019

J. Berakdar and H. Klar, Structures in the cross section of double ionization of helium by the impact of fast electrons, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.26, issue.22, p.4219, 1993.
DOI : 10.1088/0953-4075/26/22/025

S. Gupta and M. K. Srivastava, correlations, Physical Review A, vol.32, issue.3, p.2083, 1995.
DOI : 10.1063/1.1730930

URL : https://hal.archives-ouvertes.fr/in2p3-00023473

M. K. Srivastava, S. Gupta, and C. Dal-cappello, ) differential cross sections for the ionization of helium by fast electrons, Physical Review A, vol.20, issue.6, p.4104, 1996.
DOI : 10.1088/0022-3700/20/19/030

S. Elazzouzi, F. Catoire, C. Dal-cappello, A. Bennani, and I. Charpentier, Double ionization of argon by electron impact: use of the approximate 6C model, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.39, issue.23, p.4961, 2006.
DOI : 10.1088/0953-4075/39/23/013

URL : https://hal.archives-ouvertes.fr/hal-00305701

M. Mansouri, C. Dal-cappello, S. Houamer, I. Charpentier, and A. L. Bennani, by electron impact: a second Born treatment, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.37, issue.6, p.1203, 2004.
DOI : 10.1088/0953-4075/37/6/006

URL : https://hal.archives-ouvertes.fr/hal-00017506

N. Watanabe, Y. Khajuria, M. Takahashi, Y. Udagawa, P. S. Vinitsky et al., studies on double processes of He at large momentum transfer, Physical Review A, vol.140, issue.3, p.32705, 2005.
DOI : 10.1103/PhysRevLett.90.243201

R. W. Boeyen, N. Watanabe, J. W. Cooper, J. B. Doring, J. H. Moore et al., Two-step single-ionization mechanisms, Physical Review A, vol.25, issue.3, p.32703, 2006.
DOI : 10.1088/0953-4075/21/24/022

A. Kheifets, I. Bray, A. Bennani, A. Duguet, and J. Taouil, A comparative experimental and theoretical investigation of the electron-impact double ionization of He in the keV regime, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.32, issue.21, p.5047, 1999.
DOI : 10.1088/0953-4075/32/21/301

A. Kheifets, I. Bray, J. Berakdar, and C. Dal-cappello, Comparative theoretical study of (e, 3e) on helium: Coulomb-waves versus close-coupling approach, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.35, issue.1, p.15, 2001.
DOI : 10.1088/0953-4075/35/1/103

A. Kheifets and I. Bray, processes, Physical Review A, vol.5, issue.5, p.50701, 2004.
DOI : 10.1088/0953-4075/31/23/012

S. Jones and D. H. Madison, Role of the Ground State in Electron-Atom Double Ionization, Physical Review Letters, vol.24, issue.7, p.73201, 2003.
DOI : 10.1103/PhysRevA.67.012703

A. L. Bennani, C. Dupré, and A. Duguet, ) experiment, Physical Review Letters, vol.8, issue.15, p.1582, 1989.
DOI : 10.1103/PhysRevA.8.2887

A. Duguet, C. Dupré, and A. L. Bennani, Energy partitioning between ejected electrons following electron impact valence double ionization of argon, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.24, issue.3, p.675, 1991.
DOI : 10.1088/0953-4075/24/3/022

C. C. Jia, A. Bennani, A. Duguet, L. Avaldi, M. Lecas et al., Dynamics of the double ionization process by electron impact: Ar (e, 3e) experiments at low collision energy, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.35, issue.4, p.1103, 2002.
DOI : 10.1088/0953-4075/35/4/332

C. Schröter, B. El, A. Marji, A. Bennani, M. Duguet et al., Dynamics of the double-ionization process from (e, 3e) experiments: II. Fivefold differential cross sections for neon, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.31, issue.1, p.131, 1998.
DOI : 10.1088/0953-4075/31/1/014

A. L. Bennani, A. Duguet, A. M. Grisogono, and M. Lecas, (e, 3e) absolute five-fold differential cross sections for double ionization of krypton, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.25, issue.12, p.2873, 1992.
DOI : 10.1088/0953-4075/25/12/015

L. K. Jha, K. Santosh, O. P. Roy, and P. Kumar, Single and double ionization of Kr and Xe by electron impact, Physica Scripta, vol.77, issue.1, p.15304, 2008.
DOI : 10.1088/0031-8949/77/01/015304

A. L. Bennani, A. Duguet, M. N. Gaboriaud, I. Taouil, M. Lecas et al., Complete experiments for the double ionization of He: (e,3e) cross sections at 1 keV impact energy and small momentum transfer, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.34, issue.15, p.3073, 2001.
DOI : 10.1088/0953-4075/34/15/313

A. L. Bennani, A. Duguet, C. Dal-cappello, H. Nebdi, and B. Piraux, double ionization of helium, Physical Review A, vol.1, issue.1, p.10701, 2003.
DOI : 10.1007/BF01384654

URL : https://hal.archives-ouvertes.fr/hal-00600136

A. Bennani, H. Ehrhardt, C. Dupré, and A. Duguet, Identification of mechanisms of electron impact double ionizing collisions by e,(3-1)e experiments, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.24, issue.16, p.3645, 1991.
DOI : 10.1088/0953-4075/24/16/016

A. L. Bennani, C. C. Jia, A. Duguet, and L. Avaldi, Signature of the target two-electron momentum space wavefunction in the (e, 3e) angular distributions from the double ionization of helium and argon, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.35, issue.10, p.215, 2002.
DOI : 10.1088/0953-4075/35/10/104

A. L. Bennani, E. M. Staicu-casagrande, A. Naja, C. Dal-cappello, and P. Bolognesi, Predominance of the second-order, two-step mechanism in the electron impact double ionization of helium at intermediate impact energy, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.43, issue.10, p.105201, 2010.
DOI : 10.1088/0953-4075/43/10/105201

URL : https://hal.archives-ouvertes.fr/hal-00569788

V. Serov, V. Derbov, B. Joulakian, and S. Vinitsky, Wave-packet-evolution approach for single and double ionization of two-electron systems by fast electrons, Physical Review A, vol.5069, issue.1, p.12715, 2007.
DOI : 10.1088/0953-4075/38/6/001

O. Chuluunbaatar, B. Joulakian, I. V. Puzynin, K. Tsookhuu, and S. I. Vinitsky, by electron impact, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.41, issue.1, p.15204, 2008.
DOI : 10.1088/0953-4075/41/1/015204

A. Mansouri, Thèse de Doctorat d'état, Double excitation et double ionisation des cibles à deux électrons par impact d'électrons, 2004.

D. Winkoun, G. Dujardin, L. Hellner, and M. J. Besnard, O, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.21, issue.8, p.1385, 1988.
DOI : 10.1088/0953-4075/21/8/011

J. H. Eland, Double photoionisation spectra of methane, ammonia and water, Chemical Physics, vol.323, issue.2-3, p.391, 2006.
DOI : 10.1016/j.chemphys.2005.09.047

E. C. Montenegro, S. W. Scully, J. A. Wyer, V. Senthil, and M. B. Shah, Evaporation, fission and auto-dissociation of doubly charged water, Journal of Electron Spectroscopy and Related Phenomena, vol.155, issue.1-3, p.81, 2007.
DOI : 10.1016/j.elspec.2006.11.008

S. Y. Truong, A. J. Yencha, A. M. Juarez, S. J. Cavanagh, P. Bolognesi et al., Photo-double ionization of water studied by threshold photoelectrons coincidence spectroscopy, Chemical Physics Letters, vol.474, issue.1-3, p.41, 2009.
DOI : 10.1016/j.cplett.2009.04.036

I. Kada, A. Mansouri, C. Dal-cappello, P. A. Hervieux, and A. C. Roy, calculation of differential cross sections for the double ionization of water vapour by electron impact, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.42, issue.2, p.25201, 2009.
DOI : 10.1088/0953-4075/42/2/025201

A. Mansouri, C. Dal-cappello, I. Kada, C. Champion, and A. C. Roy, and differential cross sections for the double ionization of water molecule, Physics Letters A, vol.373, issue.35, p.3151, 2009.
DOI : 10.1016/j.physleta.2009.06.062

S. Uehara, H. Nikjoo, and D. T. Goodhead, Cross-sections for water vapour for the Monte Carlo electron track structure code from 10 eV to the MeV region, Physics in Medicine and Biology, vol.38, issue.12, p.1841, 1993.
DOI : 10.1088/0031-9155/38/12/010

V. A. Semenenko, J. E. Turner, and T. B. Borak, NOREC, a Monte Carlo code for simulating electron tracks in liquid water, Radiation and Environmental Biophysics, vol.42, issue.3, p.213, 2003.
DOI : 10.1007/s00411-003-0201-z

I. Plante and F. A. Cucinotta, Cross sections for the interactions of 1???eV???100???MeV electrons in liquid water and application to Monte-Carlo simulation of HZE radiation tracks, New Journal of Physics, vol.11, issue.6, p.63047, 2009.
DOI : 10.1088/1367-2630/11/6/063047

F. A. Cucinotta, H. Nikjoo, and D. T. Goodhead, Model for Radial Dependence of Frequency Distributions for Energy Imparted in Nanometer Volumes from HZE Particles, Radiation Research, vol.153, issue.4, p.459, 2000.
DOI : 10.1667/0033-7587(2000)153[0459:MFRDOF]2.0.CO;2

C. Champion, A. L. Hoir, M. F. Politis, P. D. Fainstein, R. D. Rivarola et al., A Monte Carlo Code for the Simulation of Heavy-Ion Tracks in Water, Radiation Research, vol.163, issue.2, p.222, 2005.
DOI : 10.1667/RR3295

URL : https://hal.archives-ouvertes.fr/hal-00021990

J. Medin and P. Andreo, Monte Carlo calculated stopping-power ratios, water/air, for clinical proton dosimetry (50 - 250 MeV), Physics in Medicine and Biology, vol.42, issue.1, p.89, 1997.
DOI : 10.1088/0031-9155/42/1/006

A. Chatterjee and W. R. Holley, Computer Simulation of Initial Events in the Biochemical Mechanisms of DNA Damage, Adv. Radiat. Biol, vol.17, p.181, 1993.
DOI : 10.1016/B978-0-12-035417-7.50007-6

S. Uehara, L. H. Toburen, and H. Nikjoo, Development of a Monte Carlo track structure code for low-energy protons in water, International Journal of Radiation Biology, vol.77, issue.2, p.139, 2001.
DOI : 10.1080/09553000010012536

S. Uehara and H. Nikjoo, Monte Carlo Track Structure Code for Low-Energy Alpha-Particles in Water, The Journal of Physical Chemistry B, vol.106, issue.42, p.11051, 2002.
DOI : 10.1021/jp014004h

C. Champion, P. Z. Fregonara, and E. Hindié, CELLDOSE: A Monte Carlo Code to Assess Electron Dose Distribution S Values for 131I in Spheres of Various Sizes, Journal of Nuclear Medicine, vol.49, issue.1, p.151, 2008.
DOI : 10.2967/jnumed.107.045179

M. Yamazaki, J. Adachi, T. Teramoto, A. Yagishita, M. Stener et al., O molecule, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.42, issue.5, p.51001, 2009.
DOI : 10.1088/0953-4075/42/5/051001

R. Moccia, S, and HCl, The Journal of Chemical Physics, vol.7, issue.8, p.2186, 1964.
DOI : 10.1103/PhysRev.77.304

M. J. Brother and R. A. Bonham, Approximate first Born descriptions of high-energy asymmetric (e,2e) cross sections for helium, Journal of Physics B: Atomic and Molecular Physics, vol.17, issue.20, p.4235, 1984.
DOI : 10.1088/0022-3700/17/20/021

A. Bennani, H. F. Wellenstein, C. Dal-cappello, and A. Duguet, Coincidence electron impact ionisation of helium: absolute experimental cross sections and comparison with first-order theories, Journal of Physics B: Atomic and Molecular Physics, vol.17, issue.15, p.3159, 1984.
DOI : 10.1088/0022-3700/17/15/027

A. L. Bennani, L. Avaldi, E. Fainelli, and G. Stefani, The asymmetric (e, 2e) collisions at intermediate and high impact energy: success and limits of first-order models, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.21, issue.11, p.2145, 1988.
DOI : 10.1088/0953-4075/21/11/026

M. Chérid, A. Duguet, and A. L. Bennani, An accurate investigation of the validity of the first Born approximation to describe high-energy (e, 2e) cross sections at small and intermediate momentum transfer, Journal of Physics B: Atomic and Molecular Physics, vol.20, issue.6, p.187, 1987.
DOI : 10.1088/0022-3700/20/6/002

A. L. Bennani, F. Catoire, A. Duguet, and C. Dal-cappello, reaction on He???, Physical Review A, vol.71, issue.2, p.26701, 2005.
DOI : 10.1103/PhysRevLett.48.1807

URL : https://hal.archives-ouvertes.fr/hal-00017511

A. L. Bennani, Recent developments and new trends in (e,2e) and (e,3e) studies, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.24, issue.10, p.2401, 1991.
DOI : 10.1088/0953-4075/24/10/001

J. H. Mc-guire, Double Ionization of Helium by Protons and Electrons at High Velocities, Physical Review Letters, vol.15, issue.16, p.1153, 1982.
DOI : 10.1016/0092-640X(75)90009-1

R. Mkhanter and C. Dal-cappello, A study of the two-step mechanism in the double ionization of helium by fast electrons, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.31, issue.2, p.301, 1998.
DOI : 10.1088/0953-4075/31/2/012

I. Taouil, A. Bennani, A. Duguet, and L. Avaldi, ) Experiments for the Double Ionization of Helium, Physical Review Letters, vol.29, issue.21, p.4600, 1998.
DOI : 10.1016/S1049-250X(08)60141-X

A. Dorn, R. Moshammer, C. D. Schröter, T. J. Zouros, W. Schmitt et al., Double Ionization of Helium by Fast Electron Impact, Physical Review Letters, vol.20, issue.12, p.2496, 1999.
DOI : 10.1088/0022-3700/20/15/022

M. Takahashi, N. Watanabe, Y. Khajuria, N. Karamaya, Y. Udagawa et al., Observation of molecular frame (e,2e) cross section using an electron???electron-fragment ion triple coincidence apparatus, Journal of Electron Spectroscopy and Related Phenomena, vol.141, issue.2-3, p.83, 2004.
DOI : 10.1016/j.elspec.2004.08.002

N. Watanabe, M. Takahashi, Y. Udagawa, K. A. Kouzakov, and Y. V. Popov, experiments and second-Born-approximation calculations, Physical Review A, vol.48, issue.5, p.52701, 2007.
DOI : 10.1016/0301-0104(81)80028-6

N. Watanabe, Y. Khajuria, and Y. Udagawa, Electron-impact double ionization of He at large momentum transfer studied by second-order Born-approximation calculations, Physical Review A, vol.48, issue.3, p.32725, 2008.
DOI : 10.1103/PhysRevLett.89.033004

M. Rudge, Theory of the Ionization of Atoms by Electron Impact, Reviews of Modern Physics, vol.119, issue.3, p.564, 1968.
DOI : 10.1038/119489b0

M. Schultz, Influence of the effective charges on the five-fold differential cross section for ionization of hydrogen and helium, Journal of Physics B: Atomic and Molecular Physics, vol.6, issue.12, p.2580, 1973.
DOI : 10.1088/0022-3700/6/12/023

M. Abramowitz and I. Stegun, Hundbook of mathematical function ?New York: Dover?, 1972.

H. Hda, C. Dal-cappello, and J. Langlois, Angular distributions of electrons in the (e, 3e) reaction, Zeitschrift f???r Physik D Atoms, Molecules and Clusters, vol.23, issue.5, p.25, 1994.
DOI : 10.1007/BF01437160

B. Joulakian, C. Dal-cappello, and M. Brauner, Double ionization of helium by fast electrons: use of correlated two electron wavefunctions, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.25, issue.12, p.2863, 1992.
DOI : 10.1088/0953-4075/25/12/014

P. Lamy, C. Dal-cappello, B. Joulakian, and C. L. Sech, : use of Pluvinage type correlated wavefunctions, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.27, issue.15, p.3559, 1994.
DOI : 10.1088/0953-4075/27/15/027

C. Dal-cappello, H. Hda, and A. Roy, Angular distributions in the double ionization of the noble gases by electron impact, Physical Review A, vol.26, issue.5, p.3735, 1995.
DOI : 10.1088/0953-4075/26/22/025

S. Elazzouzi, C. Dal-cappello, A. Bennani, and F. Catoire, Double ionization of helium by electron impact: angular distributions at low incident energy, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.38, issue.10, p.1391, 2005.
DOI : 10.1088/0953-4075/38/10/001

M. Grin, C. Dal-cappello, R. Mkhanter, and J. Rasch, Angular distribution in (e, 3e) collisions on helium, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.33, issue.2, p.131, 2000.
DOI : 10.1088/0953-4075/33/2/301

L. Ancarani, T. Montagnese, and C. Dal-cappello, processes, Physical Review A, vol.12, issue.1, p.12711, 2004.
DOI : 10.1088/0953-4075/32/21/301

P. and L. Floch, Introduction à la chimie Moléculaires par la théorie des orbitales frontières, 2006.

F. Tarantelli, A. Tarantelli, and A. Sgamelloti, O, The Journal of Chemical Physics, vol.110, issue.9, p.4683, 1985.
DOI : 10.1016/0021-9991(76)90084-X

H. Siegbahn, L. Asplund, and P. Kelfve, The Auger electron spectrum of water vapour, Chemical Physics Letters, vol.35, issue.3, p.330, 1975.
DOI : 10.1016/0009-2614(75)85615-6

C. Champion, C. Dal-cappello, S. Houamer, and A. Mansouri, Single ionization of the water molecule by electron impact: Angular distributions at low incident energy, Physical Review A, vol.281, issue.1, p.12717, 2006.
DOI : 10.1007/s100530050132

A. O. Bawagan, C. E. Brion, E. R. Davidson, and D. Feller, Electron momentum spectroscopy of the valence orbitals of H2O and D2O: Quantitative comparisons using Hartree???Fock limit and correlated wavefunctions, Chemical Physics, vol.113, issue.1, p.19, 1987.
DOI : 10.1016/0301-0104(87)80217-3

M. A. Coplan, J. H. Moore, and J. P. Doering, ) spectroscopy, Reviews of Modern Physics, vol.64, issue.252, p.985, 1994.
DOI : 10.1103/PhysRevLett.64.1358

V. G. Neudachin, Y. V. Popov, and Y. F. Smirnov, Electron momentum spectroscopy of atoms, molecules, and thin films, Physics-Uspekhi, vol.42, issue.10, p.1017, 1999.
DOI : 10.1070/PU1999v042n10ABEH000492

I. E. Mccarthy and E. Weigold, Wavefunction mapping in collision experiments, Reports on Progress in Physics, vol.51, issue.3, p.299, 1988.
DOI : 10.1088/0034-4885/51/3/001

S. Zhang, Momentum correlation in the three-body Coulomb continuum problem, Journal of Physics B: Atomic, Molecular and Optical Physics, vol.33, issue.18, p.3545, 2000.
DOI : 10.1088/0953-4075/33/18/305

C. Champion, J. Hanssen, and P. A. Hervieux, process on a water molecule, Physical Review A, vol.27, issue.5, p.52720, 2001.
DOI : 10.1088/0953-4075/27/15/026

A. Dorn, A. Kheifets, C. D. Schröter, B. Najjari, C. Höhr et al., Double ionization of helium by electron impact in the impulsive regime, Physical Review A, vol.24, issue.3, p.32709, 2002.
DOI : 10.1088/0953-4075/24/3/021

I. Kada and . De-doctorat, Etude de la double ionisation de la molécule d'eau par impact d'électrons, 2009.