Browsing by Author "D.S. Zvezhinskii"
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PublicationConference Paper A novel approach to the interpretation of PAL spectra in glycerol(Trans Tech Publications Ltd, 2009) S.V. Stepanov; D.S. Zvezhinskii; G. Duplatre; V.M. Byakov; V.S. SubrahmanyamA new strategy for the treatment of positron annihilation lifetime (PAL) spectra in viscous liquids is proposed, enabling to extract values of the Ps reaction rate constants with intratrack radiolytic products as well as parameters of the free volume distribution in viscous media. © (2009) Trans Tech Publications, Switzerland.PublicationConference Paper Influence of temperature on intratrack processes and Ps formation and behaviour in liquid water(Trans Tech Publications Ltd, 2009) S.V. Stepanov; G. Duplâtre; V.M. Byakov; V.S. Subrahmanyam; D.S. Zvezhinskii; A.S. MishaginaPositron annihilation lifetime (PAL) spectra are measured in liquid water in the temperature range 2 - 930C. The spectra are treated by taking into account intratrack reactions and assuming that radical reactions with Ps are diffusion-controlled (the respective temperature dependences obeying the Stokes-Einstein law). Equilibrium Ps bubble parameters are obtained. © (2009) Trans Tech Publications, Switzerland.