@article {Hayashi_JAP_2001, title = {Emittance Measurement of Axisymmetric High-Currrent Electron Beam Confined by a Longitudinal Magnetic Field}, journal = {Journal of Applied Physics}, volume = {vol.~40}, number = {no.~12}, year = {2001}, pages = {7135{\textendash}7139}, author = {Y. Hayashi and A. Okino and E. Hotta} }