• Ph.D. (Nuclear Physics) - 1987, University of Pittsburgh, U.S.A.
• M.Sc. -1982, University of Pittsburgh, U.S.A
• B.Sc. (Physics Special with First Class Honours) - 1979

• Gamma Ray Spectroscopy
• Physics Education

Publications

1. Weak branches in 42Sc,35Ar, and 27Si b+ decay, W.W. Daehnick and R.D. Rosa,. Phys.Rev.C 31, 1499 (1985).
2. 17O(p,t)15O reaction at 90 Mev, K.F. Von Reden, W.W. Daehnick, S.A.Dytmen and R.D. Rosa,  Phys.Rev. C32, 1465 (1985).
3.  The (g9/2)2 residual interaction from 87Sr(d,t)86Sr, P.C. Li, W.W. Daehnick and R.D. Rosa,.Nucl Phys. A442,253 (1985).
4. 18O(p,t)16O reaction at 90 MeV, K.F. Von Reden, W.W.Daehnick, S.A.Dytmenand and R.D. Rosa, Phys.Rev. C34, 375 (1986).
5. b-g angular correlation in 20Na and 20F beta decay, R.D.Rosa, W.W.Daehnick, Swapan K. Saha, and P.C. Li,  Phys.Rev. C37, 2722 (1988).
6. Analysis Of Radioactive Substances Present In Various Types of Milk Powders Used In  Sri-Lanka - L.G.K. Karunagoda and S.R.D. Rosa - Proceedings of 13th Technical Session of Institute Of Physics, Sri-Lanka, 17 (1997).
7. Radioactive Analysis of Corals and sand at Various Locations in Sri-Lanka - A.S.T. Ubesekara, C.Sumithraarachchi, and S.R.D. Rosa - Proceedings of 15th Technical Session of  Institute Of Physics, Sri-Lanka, 31 (1999).
8.  Evaluation of Gamma Radiation Exposure in a Room from Construction Material - C.S. Sumithrarachchi, A.S. Amarasekara, R.Hewamanna and S.R.D. Rosa - Sri Lankan Journal  of  Physics, 1, 73 (2000).
9. Characteristics of CuInSe2 thin films annealed at different temperatures - L.P. Seneviratne,K.T.L De Silva, W. Siripala, S.R.D. Rosa and D.U.J. Sonnadara – Proceedings of the  56th Annual Session(SLAAS), Part 1, 222 (2000).
10. Radiation Exposure from Floor Tiles - A.S. Amarasekara, S.R.D. Rosa and C.S. Sumithrarachchi - Proceedings of the 56th Annual Session (SLAAS), Part 1, 221  (2000).
11. Optical & structural characterization of electrodeposited CuInSe2 thin films – L.P.Senaviratne, K.T.L. De Silva, W. Siripala, S.R.D. Rosa, D.U.J. Sonnadara - Proceedings of 17th Technical Session of Institute Of Physics, Sri-Lanka, 52(2001).
12. Use of Z-scores for the admission to Sri-Lankan Universities – T.R. Ariyaratne and S.R.D Rosa - Proceedings of 18th Technical Session of Institute Of Physics, Sri-Lanka,45(2002)
13. On – line measurements of rise of sea wave height – K.D.Nanayakkara and S.R.D Rosa –  Sri Lankan Journal of  Physics, 5, 37 (2003).
14. Student understanding of  tunnelling in Quantum Mechanics - S.R.D. Rosa - Proceedings of 22nd  Technical Session of Institute Of Physics, Sri-Lanka,47(2006)
15. Testing of quality and efficiency of Oil filters used in vehicles – K.M. Pushpananda and  S.R.D. Rosa – Proceedings of 23rd  Technical Session of Institute Of Physics, Sri-Lanka,27(2007)
16.  Revisiting mysterious Mpemba Effect – I.L. Gamage and S.R.D. Rosa – Proceedings of 24th Technical   Session of Institute Of Physics, Sri-Lanka,45(2008) 
17. Real-time Ship Motion Prediction System – D. Sandaruwan, N. Kodikara, R. Rosa and C. Keppitiyagama – 2nd Annual International Conference on Computer Games & Allied Technology (CGAT 09), 11th – 13th May 2009, Singapore 
18. Virtual Learning and Training Environment for Maritime Education  - Sandaruwan, D., Kodikara, N., Keppitiyagama, C. and  Rosa R., Samarasinghe, P., Madusanka, U., Perera, C., Dias K. - 27th National Information Technology Conference, 9th – 10th September 2009, Colombo.
19. A ship Simulation system for marine education.-  Sandaruwan, D., Kodikara, N., Keppitiyagama, C. and  Rosa, Samarasinghe, P., Madusanka, U., Perera, C. –  e- Asia 2009  Conference in Sri Lanka
20. Perception Enhanced   Virtual Environment for Maritime Applications - Sandaruwan, D., Kodikara, N., Keppitiyagama, C. and  Rosa, R. – 3rd Annual International Conference on Computer Games, Multimedia and Allied Technology (CGAT 2010) Singapore.
21.    Perception Enhanced   Virtual Environment for Maritime Applications - Sandaruwan, D., Kodikara, N., Keppitiyagama, C. and  Rosa, R. – (2010) GSTF International Journal on Computing
22.    A ship Simulation system for marine. Sandaruwan, D., Kodikara, N., Keppitiyagama, C. and  Rosa, R (2010) A ship Simulation system for marine.- The International Journal on Advances in ICT for Emerging Regions (ICTer)
23. Spatialized Real Time Auditory Interface for a Virtual Maritime Application -  Chathura Gunasekara, Rexy Rosa, Chamath Keppitiyagama, Damitha Sandaruwan, Uditha M de Soysa, Prabath Samarasinghe, and Chandana Perera. - (2010) Spatialized Real Time Auditory Interface for a Virtual Maritime Application. International Conference on Advances in ICT for Emerging Regions (ICTer)
24. Challenges in Developing a Display System for a Ship Handling Simulator - U. M. De Soysa, Nihal Kodikara, Chamath Keppitiyagama, Kapila Dias, Rexy Rosa, Damitha Sandaruwan, Prabath Samarasinghe, Chandana Perera - (2010) International Conference on Advances in ICT for Emerging Regions (ICTer)
25. Modeling  and Simulation of Environmental Disturbances for Real-time Six Degrees of  freedom Ocean Surface Vehicle - Sandaruwan, D., Kodikara, N., Keppitiyagama, C. and  Rosa, R. (2010) Sri Lanka Journal of Physics. (In press)
26. “Vidusayura” Low cost Immersive VR Solution for Maritime education: Simulation Requirements and Major Development Challenges - Sandaruwan, D., Kodikara, N., Keppitiyagama, C. and  Rosa, R., Dias K,. Tilakaratne C. (2011) Maritime applications with 3D computer graphics (Go-3D 2011), Germany.

Orations

1. ‘Student understanding of tunneling in Quantum Mechanics’ - Presidential Address - S.R.D. Rosa – Proceedings of 22nd Technical Session of Institute Of Physics, Sri-Lanka,47(2006)
2. ‘Particle Physics – Building blocks and the fundamental forces of the microcosmos ’, Presidential Address, Section E1, Annual Sessions, Sri Lanka Association for the Advancement of Science, Dec 13-17, 2007, OUSL
3. “Physics of Nuclear bombs” delivered at a seminar on ‘Illegality of Nuclear Arms’ organized by the Weeramantry International Centre for Peace, Education and Research, held in Colombo, Sri Lanka on Oct 24, 2003

Books

1. Mechanics, Waves and Vibrations - ISBN 955-9385-02-X
   Matter and Radiation - ISBN 955-9385-04-6
   Analysis of Multiple Choice Questions in G.C.E.(A/L) Physics Paper - ISBN 955-97055-0-4
2. Teacher's Guide (G.C.E A/L) - Unit 7 (Matter and Radiation)

• Analysis of G.C.E.(A/L)-Question paper-2001 - ISBN95597055-1-2.
• Analysis of G.C.E.(A/L)-Question paper-2002 - ISBN95597055-2-0.
• Analysis of G.C.E.(A/L)-Question paper-2003 - ISBN95597055-3-9.