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Education
1986: Doctorat D'Etat es-Sciences de Physics, Theoretical
and Experimental Study of the Interaction of Ultrarelativistic
Electrons, Positrons and Photons with Aligned Crystals, University
Lyon I, France
1983: Doctorat 3ieme Cycle, Theoretical Spectroscopy
of Diatoms, University Lyon I, France
1981: Diplome d'Etudes Approfondies (M. Sc.), University
Lyon I
1975-1979: Maitrise de Physique (B. Sc.), University of
Algiers, Algeria
Professional Experience
Senior Staff Scientist, Group Leader, Atomic, Molecular
and Optical Sciences, Chemical Sciences Division, Lawrence
Berkeley National Laboratory (1989-present). Postdoctoral
Fellow, Physics Division, Argonne National Laboratory (1987-89).
Postdoctoral Fellow, Laboratoire d'Annecy-le-Vieux de la
Physique des Particules, France (1986-1987).
Recent Professional Service
Member of on-site DOE program review, AMO Sciences, Kansas
State University, 1998 and 1995.
Chairman, Computer and Communications Advisory Committee,
Lawrence Berkeley National Laboratory.
Member of LBNL Chemical Sciences Divisional Council.
Research Interests
Investigation of relativistic phenomena in atomic collisions,
including relativistic effects in photoionization, electron
transfer, and pair production. Investigation of coherence
phenomena in electromagnetic conversion processes at high
energies. Modification of Structure and Dynamics of atoms
and molecules evolving in strong, transient fields.
Relevant
Publications
A. Belkacem, A. Sorensen, and D. Ionescu, "Ionization
and pair creation for relativistic ion and photon impact on
atoms," Physics Report, (to be published).
D.C. Ionescu, A. Sorensen, and A. Belkacem, "Inner-shell
photoionization at relativistic energies," Phys. Rev.
A 59, 3527, 1999.
D.C. Ionescu and A. Belkacem, "Relativistic Collisions
of highly-charged Ions", Physica Scripta 80, 128, 1999.
A. Belkacem, N. Claytor, T. Dinneen, B. Feinberg, and H.
Gould, "Electron capture from pair production by Ay79+
at 10.8 GeV/n", Phys. Rev. A 58, 1253,
1998.
A. Belkacem and A. Sorensen, "Bound-free heavy-lepton
pair production for photon impact on atomic nuclei",
Phys. Rev. A 57, 3646, 1998.
A. Belkacem, H. Gould, R. Bossingham and W. Meyerhof, "Capture,
ionization, and pair production processes in relativistic
heavy ion collisions in the 1-GeV/n energy range", Phys.
Rev. A 56, 2806, 1997.
N. Claytor, A. Belkacem, T. Dinneen, B. Feinberg, and H.
Gould, "Ionization and capture of Au78+ at 10.8 GeV/n",
Phys. Rev. A 55, 842, 1997.
K. Momberger, A. Belkacem, A. Belkacem, "Numerical
treatment of the time-dependent Dirac equation in momentum
space for atomic processes", Phys. Rev. A 53,
1605, 1996.
A. Belkacem, H. Gould, B. Feinberg, R. Bossingham, and W.
Meyerhof, "Projectile energy and atomic number dependence
of electron capture from pair production", Phys. Rev.
Lett. 73, 2432, 1994.
A. Belkacem, H. Gould, B. Feinberg, R. Bossingham, and W.
Meyerhof, "Measurement of electron capture from electron-positron
pair production", Phys. Rev. Lett. 71,
1514, 1993.
D. Zajfman, A. Belkacem, T. Graber, E. Kanter, R. Mitchell,
R. Naaman, Z. Vager, and B. Zabransky, "Measurement of
the distribution of bond angles in H2O+", J. Chem.
Phys. 94, 2543, 1991.
J. Schweppe, A. Belkacem, L. Blumenfeld, N. Claytor, B.
Feinberg, H. Gould, V. Kostroun, L. Levy, S. Misawa, J. Mowat,
and M. prior, "Measurement of the Lamb shift in Lithiumlike
Uranium", Phys. Rev. Lett. 66, 1434, 1991.
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