Elastic electron scattering from water*

Accurate measurements of differential cross-sections for elastic electron scattering from water will be presented. The data were taken using a modified form of the relative flow method with an aperture gas source replacing conventional tube source [1]. In addition the source was moveable [2] to accurately determine the background scattering. Data were taken at incident energies of 1eV to 100eV and scattering angles of 10 to 130 deg. The results show that present recommended cross-sections for water should be changed. [1] M. A. Khakoo et al., Journal of Physics B, \underline {40}, 3601 (2007). [2] M. Hughes et al., Meas. Sci. Technol. 14, 841 (2003).