The physics and applications of high brightness electron beams : proceedings of the 46th Workshop of the INFN ELOISATRON Project, Erice, Sicily, Italy, October 9-14, 2005, 194-209 STARTPAGE=194;ENDPAGE=209;TITLE=The physics and applications of high brightness electron beams : proceedings of the 46th Workshop of the INFN ELOISATRON Project, Erice, Sicily, Italy, October 9-14, 2005