4.Journals Published in Sri Lanka
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Item Construction of a keV pulsed ion source and the measurement of damage cross -sections for keV ion induced sputtering from solid targets(University of Peradeniya. Peradeniya, 1997) Barlodaya, D.D.N.; Ariyaratne, T.R.; Hankansson, P.; Sundqvist, B.U.R.; Ens, W.Item Kinetic energy measurements of ions emitted from alkali halides and their mixtures in 252Cf plasma desorption mass spectrometry(University of Peradeniya. Peradeniya, 1997) Abeywarna, U.K.; Zubarev, R.A.; Hakansson, P.; Ariyaratne, T.R.Kinetic energy measurements of both positive and negative ions emitted from several alkali halides and their mixtures are reported. The measurements were conducted using the energy cut-off property of the ion mirror of a reflector type 252Cf plasma desorption mass spectrometer. The results obtained indicate that some fraction of the desorbed ions emitted under 252Cf bombardment have a kinetic energy deficit compared to die ions which gain full kinetic energy during the acceleration-region. The initial kinetic energy of a particular ion was found to be rather independent upon the sample composition.Item Construction of a matrix assisted laser desorption/ionization time-of -flight mass spectrometer(Institute of Physics. Colombo, 2000) Coorey, R.V.; Ariyaratne, T.R.; Barlo Daya, D.D.N.; Wijayaratne, W.M.K.P.Item Activity of cloud-to-ground lightning observed in Sri Lanka and in surrounding area of the Indian Ocean(Institute of Physics. Colombo, 2001) Weerasekera, A.B.; Sonnadara, D.U.J.; Fernando, I.M.K.; Liyanage, J.P.; Lelwala, R.; Ariyaratne, T.R.Item Electric field penetration effects in time-of-flight measurements(Institute of Physics. Colombo, 2003) Abeywarna, U.K.; Ariyaratne, T.R.Item Locating cloud- to -ground lightning flashes with simultaneous two -station measurements(Institute of Physics. Colombo, 2000) Sonnadara, D.U.J.; Weerasekera, A.B.; Fernando, I.M.K.; Lelwala, R.; Jayaratne, K.P.S.C.; Ariyaratne, T.R.; Namasivayam, S.; Bandara, K.R.A.