@conference {Menhard_EBT_2006, title = {Fast measurements of important electron beam parameters by variation of beam focusing}, booktitle = {Proceedings of the 8th International Conference on Electron Beam Technologies}, volume = {2}, year = {2006}, pages = {11{\textendash}12}, publisher = {Bulgarian Academy of Sciencies}, organization = {Bulgarian Academy of Sciencies}, address = {Varna}, author = {C. G. Menhard}, editor = {Georgy Mladenov} }