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• (1960) BSc General With Distinction
• (1961) BSc Honors, University College Dublin
• (1966) PhD, Trinity College Dublin

Dr. O'Sullivan is a professor at the Dublin Institute for Advanced Studies. He has been a research physicist at DIAS and he has spent considerable periods as a visiting research physicist abroad at various facilities including CERN and General Electric, Schenectady, NY. His research has spanned over thirty years and during this time he has explored many subjects including: studies devoted to the production and decay of hypernuclei, investigating low energy K-p scattering, and developing and using nuclear track detectors to investigate charge specturm of cosmic rays. Dr. O'Sullivan's interest and experience with cosmic rays have enabled him to contribute to many space missions: Apollo 16 in search of low energy cosmic rays, the Lunar Mission Studies on Apollo 17, the Ultra-Heavy Cosmic Ray Experiment for the LDEF Missions, the Giotto Mission to Halley's Comet to study the electrons, protons and ions in the Halley Environment and the cruise phase studes of particle fluxes, Comet Grigg Skjellerup to perform studies similar to the Halley Comet studies and SLED on the Soviet Phobos Mission to Mars. In addition to his space studies, Dr. O'Sullivan was the principal investigator for the study of Z>1 particles at aircraft altitudes for the European Union project.

Dr. O'Sullivan has been a visiting lecturer, research, and professor at the University of California at Berkeley. He is a fellow of the Institute of Physics and the Royal Astronomical Society. He has served on NASA Steering and Review Committees for astrophysics. He is the author or co-author of over 130 publications. The following are Dr. O'Sullivan's LDEF publications:

D. O'Sullivan, A. Thompson, J. Bosch, R. Keegan, K-P Wenzel, A. Smit and C. Domingo, The LDEF Ultra Heavy Cosmic Ray Experiment, First LDEF Post-Retrieval Symposium, NASA CP-3134, 1991.

A. Thompson, D. O'Sullivan, J. Bosch, R. Keegan, K-P Wenzel, F. Jansen and C. Domingo, Progress Report on the Ultra Heavy Cosmic Ray Experiment (AO178), Second LDEF Post-Retrieval Symposium, NASA CP-3194, 1992.

D. O'Sullivan, A. Thompson, J. Bosch, R. Keegan, K-P Wenzel, F. Jansen and C. Domingo, Early Results from the Ultra Heavy Cosmic Ray Experiment, Third LDEF Post Retrieval Symposium, NASA CP-3275, 1993.

R. Keegan, D. O'Sullivan, A. Thompson, J. Bosch, K.-P. Wenzel, F. Jansen and C. Domingo, Preliminary Results from the Ultra Heavy Cosmic Ray Experiment on LDEF, Proceedings of the 1992 Dubna International Workshop, April 1992.

D. O'Sullivan, Ultra Heavy Cosmic Ray Studies and Early Results from the Dublin-ESTEC Experiment on LDEF. Highlight Talk at the 23rd International Cosmic Ray Conference, Calgary, (1993), Proc of Conference. (Invited, Rapporteur and Highlight Papers), eds. Leahy, Hicks and Venkatesan (Wold Scientific, Singapore), 493,1994.

A. Thompson, D. O'Sullivan, K-P Wenzel, J. Bosch, R. Keegan, C. Domingo and F. Jansen, Some Early Results from the LDEF Ultra Heavy Cosmic Ray Experiment, Proc 23rd ICRC (Calgary) Vol 1, 603, 1993.

D. O'Sullivan, Some Results from the Investigation of Cosmic Rays Using SSNTD at Dublin. Invited Talk, Int Conf on SSNTD, Dubna,1994. In Press, Rad. Meas. Pergamon Press.

F. Jansen, K-P Wenzel, D. O'Sullivan and A. Thompson, The Ultra Heavy Cosmic Ray Data from the Dublin-ESTEC Experiment on LDEF Satellite and a Halo Diffusion Model for Cosmic Rays. COSPAR Gen Assemb Hamburg, 1994. In Press, Adv Sp Res.

D. O'Sullivan, A. Thompson, J. Bosch, K-P Wenzel and F. Jansen, Early Results from the Ultra Heavy Cosmic Ray Experiment, Advances in Space Research I5, 6, 25, 1995.

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