The previous page is sending you to https://www.alamy.com/the-bell-system-technical-journal-dv-fr-j-x-a-t-beam-formation-with-electron-guns-395-fig-6-curves-showing-the-current-density-variation-with-radius-in-a-beami-which-has-been-dispersed-by-thermal-velocities-here-r-is-the-nominal-beam-radiusi-r-is-the-radius-variable-and-ltt-is-the-standard-deviation-defined-in-equation-17-a-family-of-curves-with-this-ratio-fr-as-parameter-has-been-reproduced-from-the-hines-cutler-paper-and-appears-here-as-fig-7-using-this-no-tation-25-becomes-dv-vr2v-j-frdi-27reo-r-or-d-rdz-jn-lo-fr-fr-27r0-277a32-j-j-27-wher-image376107696.html.

 If you do not want to visit that page, you can return to the previous page.