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Home > Department Staff > Profiles :

Dr (Mrs) U K Abeywarna, BSc, MSc (Peradeniya), PhD (Colombo), CPhys, FIP (SL)


staff name Designation : Senior Lecturer - Grade I
Spcialized Field : Mass Spectrometry; Mechanism and Applications
Mailing Address : Department of Physics, University of Kelaniya,
Kelaniya 11600, Sri Lanka
Telephone : (+94) (0)11 2903350 (Office)
(+94) (0)11 2917879 (Residence)
Email : kanthi@kln.ac.lk

Research Interests

  • Applications in Mass Spectrometry

  • Thermoelectric properties of semiconductor materials

Publications

  1. UK Abeywarna and TR Ariyaratne, Electric field penetration effects in time-of-flight measurements, J. Inst. Phys., Sri Lanka 4 (2003)

  2. UK Abeywarna, EPPC Gunawardana, DN Bopege, RRM Rajapakse, RP Wijesundara and W Siripala, A study of Peltier effect in a thermoelectric couple of n-type cuprous oxide and p-type cuprous sulfide semiconductors,Proc. Annual Research Symp. 2003, University of Kelaniya (2003)

  3. UK Abeywarna, RA Zubarev, P Hakansson, and TR Ariyaratne, Kinetic energy measurements of ions emitted from alkali halides and their mixtures in 252Cf Plasma Desorption Mass Spectrometry, Ceylon J. Science: Physical Sciences, 4(1), pp. 1-8 (1997)

  4. RA Zubarev, UK Abeywarna, P Demirev, J Eriksson, R Papaleo, P Hakansson and BUR Sundqvist, Delayed, Gas-phase Ion Formation in Plasma Desorption Mass Spectrometry, Rapid Comm. in Mass Spec. 11, pp. 963-972 (1997)

  5. DDNB Daya, UK Abeywarna, TR Ariyaratne RV Cooray, CKG Piyadasa, WMKP Wijayaratna and MSB Mohottalage, An investigation on the applicability of plasma desorption mass spectrometry in the study of natural product compounds,Proc. 53rd Annual Sess., SLAAS, p. 362 (1997)

  6. RA Zubarev, U Abeywarna, P Hakansson, P Demirev and BUR Sundqvist, Kinetic Energies of Secondary Ions in MeV and keV Particle-Induced Desorption, Rapid Comm. in Mass Spec. 10, pp. 1966-1974 (1996)

  7. RA Zubarev, P Hakansson, U Abeywarna and BUR Sundqvist, Gas-phase molecular ion formation in PDMS and SIMS, Desorption 96 Conference, Denmark (1996)

  8. P Hakansson, RA Zubarev, U Abeywarna and BUR Sundqvist, Observations of Chunk Ejection of the Molecular Ions in PDMS and SIMS, ASMS-96 Annual Conference, USA, pp. 12-16 (1996)

  9. DDNB Daya, UK Abeywarna, TR Ariyaratne RV Cooray, CKG Piyadasa and WMKP Wijayaratna, Performance of a new two-way ion production facility constructed for a plasma desorption mass spectrometer,Proc. 52nd Annual Sess., SLAAS, p. 171 (1996)

  10. CKG Piyadasa, UK Abeywarna, TR Ariyaratne RV Cooray, DDNB Daya and WMKP Wijayaratna, Performance of the newly constructed linear time-of-flight plasma desorption mass spectrometer, Proc. 51st Annual Sess., SLAAS, p. 341 (1995)

  11. CKG Piyadasa, UK Abeywarna, TR Ariyaratne RV Cooray, DDNB Daya and WMKP Wijayaratna, Performance of an electrostatic lens (Einzel lens) as an ion maneuvering device in a time-of-flight mass spectrometer,Proc. 51st Annual Sess., SLAAS, p. 343 (1995)

  12. DDNB Daya, UK Abeywarna, TR Ariyaratne and CKG Piyadasa, Resolution vs. ion yield study on the first 252Cf Plasma Desorption Mass Spectrometer in Sri Lanka,Proc. 49th Annual Sess., SLAAS, p. 196 (1993)

  13. RV Cooray, UK Abeywarna, TR Ariyaratne, DDNB Daya and CKG Piyadasa, 252Cf plasma desorption mass spectra of penicillins and the stabilization of molecular ions by cationization,Proc. 49th Annual Sess., SLAAS, p. 197 (1993)


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