WELCOME TO OUR GROUP WEBSITE We study collisions of electrons with atoms and molecules. You're welcome to have a look. Thanks for visiting!

Prof. Dr. Mevlut Dogan Afyon Kocatepe University Department of Physics   Our Collaborators

Currently, we are studying electron-impact excitation of the autoionizing transition in helium. (e,2e) coincidence technique is used in our studies. Read more   Laboratory equipments used by Prof. Albert Crowe, in Newcastle, for atomic collisions were recently transported from UK to our laboratory.Two spectrometers have been installing in the lab to study electron-molecule collisions. Read more   LATEST CONFERENCES MPS2010-Japan ECAMP10-Spain CPO8-Singapore ICAP10-Australia ESCAMPIG10-Serbia	Why Collision Studies? You may think of collision experiments as being terribly esoteric and aetherial, but the fact is our everyday existence depends on them; our brains, for instance, perform analyses of collision experiments many times a second. Research Our work explores fundamental processes in collision physics. We study the interaction of electrons with atoms and molecules.These include elastic as well as inelastic scattering from targets. More specifically, in (e,2e) experiments, an incident electron ionizes a target and the resulting outgoing electrons are detected in coincidence, providing the most detailed tests of current ionization theories. Laboratories Our electron spectrometer and other spectrometers are based on the crossed-beam principle, and consist basically of a high intensity electron gun, a gas beam target and two high resolution electron energy analyzers. Theory of Electron Scattering The theoretical study of electron scattering from atoms and molecules is an enormous field of endeavor with a history dating back to the early 1930's. Despite this, There remain many unsolved problems. The Coulomb three-body scattering problem is, perhaps surprisingly to the general scientific community, still a subject of intense interest for theorists and experimentalists alike.	DEVELOPMENT OF BIASED PARACENTRIC ENERGY ANALYZER   TUBITAK grant: 106T722. A new hemispherical deflector analyzer (HDA) configuration for atomic collisions has been constructed and tested. Results showed that the analyzer has useful advantages over conventional HDAs. Read more ELECTRON-MOLECULE COLLISIONS   TUBITAK grant: 109T738. A recent development in collision physics is the study of electron scattering from molecules. This interest is largely generated by the important role played by low-energy electrons in radiobiology. Read more ELECTROSTATIC LENS DATABASE   We have calculated the focal lengths and other focal properties of multi-element lenses consisting of coaxial cylinders or apertures of equal diameter separated by distances of 0.1 diameter. Read more