Personnel
>> Academic Staff
Dr.
W M P K Wijeyaratna |
Department
of Physics
University of Colombo
Colombo 030
Sri Lanka |
| Telephone |
+94
11 2584 777 (office) |
| Fax |
+94
11 2584 777 |
| Email |
kani@phys.cmb.ac.lk |
| Room |
303
|
| Extension |
280 |
|
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| Academic
Qualifications |
|
- Ph.D.
(Atomic Physics)-1993
University of Missouri-Rolla, Rolla, Missouri USA.
- B.Sc.
(Physics Special)-1983
University of Colombo, Colombo 3, Sri Lanka.
|
| Fields
of Specialization & Research Interests |
- Atomic
& Molecular Physics (Experimental)
|
| Publications |
1.
Construction of an electronic device for monitoring voltage
standing wave
ratio (VSWR) of a transmission antenna. D.K.R.N. Pradeep,
W.M.K.P. Wijayaratna, R. Lelwala, & T.G.J. Amarasena,
Proc. 19th Technical Sessions of the Institute of Physics,
Sri Lanka (March 2003) 17
2. Construction of a matrix-assisted laser desorption/ionization
time-of-flight
mass spectrometer, R.V. Coorey, T.R. Ariyaratne, D.D.N.B.
Daya and W.M.K.P. Wijayaratna, Sri Lankan Journal of Physics,
1 (2000) 33
3. An investigation on the applicability of plasma desorption
mass spectrometry in the study of natural product compounds,
D.D.N.B. Daya, U.K. Abeywarna, T.R. Ariyaratne, R.V. Coorey,
C.K.G. Piyadasa, W.M.K.P. Wijayaratna and M.S.B. Mohottalage,
Proc. 53rd Annual Sessions of Sri Lanka Assoc. Advmt.
Sci., E2-38 (1997) 362
4. Performance of a low-cost second order electrostatic
ion mirror for a time-of-flight plasma desorption mass
spectrometer, C.K.G. Piyadasa, T.R. Ariyaratne and W.M.K.P.
Wijayaratna, Proc. 52nd Annual Sessions of Sri Lanka Assoc.
Advmt. Sci. El-16 (1996) 170
5. Effects of residual gas pressure on the mass resolution
and the molecular ion yield of a time-of-flight mass spectrometer,
C.K.G. Piyadasa, T.R. Ariyaratne and W.M.K.P. Wijayaratna,
Proc. 52nd Annual Sessions of Sri Lanka Assoc. Advmt.
Sci. El-17 (1996) 171
6. Performance of a new two-way ion production facility
constructed for a plasma desorption mass spectrometer,
D.D.N.B. Daya, U.K. Abeywarna, T.R. Ariyaratne, R.V. Coorey,
C.K.G. Piyadasa and W.M.K.P. Wijayaratna, Proc. 52nd Annual
Sessions of Sri Lanka Assoc. Advmt. Sci. El-18 (1996)
171
7. Performance of the newly constructed linear time-of-flight
plasma desorptoin mass spectrometer, C.K.G. Piyadasa,
U.K. Abeywarna, T.R. Ariyaratne, R.V. Coorey, D.D.N.B.
Daya and W.M.K.P. Wijayaratna, Proc. 51st Annual Sessions
of Sri Lanka Assoc. Advmt. Sci. El-06 (1995) 341
8. Performance of an electrostatic lens (Einzel lens)
as an ion maneuvering device in a time-of-flight mass
spectrometer, C.K.G. Piyadasa, U.K. Abeywarna, T.R. Ariyaratne,
R.V. Coorey, D.D.N.B. Daya and W.M.K.P. Wijayaratna, Proc.
51st Annual Sessions of Sri Lanka Assoc. Advmt. Sci. El-07
(1995) 343
9. Optical electron polarimetry with heavy noble gases,
T.J. Gay, J.E. Furst, K.W. Trantham, and W.M.K.P. Wijayaratna,
Phys. Rev. A, 53 (1996) 1623
10. A clean ultra high vacuum system with single-structure
diffusion pumps, T.J. Gay, J.A. Brand, M.C. Fritts, J.E.
Furst, M.A. Khakoo, E.R. Mell, M.T. Sieger and W.M.K.P.
Wijayaratna, J. Vac. Sci. Technol. A 12(5) (1994) 2903
11. Investigation of spin-orbit effect in the excitation
of noble gases by spin-polarized electrons, J.E. Furst,
W.M.K.P. Wijayaratna, D.H. Madison and T.J. Gay, Phys.
Rev. A, 47, (1993) 3775
12. Extrapolation procedures in Mott electron polarimetry,
T.J. Gay, M.A. Khakoo, J.A. Brand,, J.E. Furst, W.V. Meyer,
W.M.K.P. Wijayaratna and F.B. Dunning, Rev. Sci. Instrum.
63, (1992) 114
13. An attempt to observe Mott scattering optically, J.E.
Furst, T.J. Gay, W.M.K.P. Wijayaratna, K. Bartschat, H.
Geesmann, M.A. Khakoo, and D.H. Madison, J. Phys. B: At.
Mol. Opt. Phys. 25. (1992) 1089
14. Optical studies of polarized-electron?noble-gas collisions,
T.J. Gay, J.E. Furst, H. Geesmann, M.A. Khakoo, D.H. Madison,
and, W.M.K.P. Wijayaratna, Inst. Phys. Conf. Ser. No.
122 (1991) 265
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