Apparatus for 2d electron energy analysis in high-power beams

The presented analyzer of electron beam characteristics Soffron60 was designed for operation with GESA electron-beam material-treatment facilities, and can be used at machines with similar characteristics (~60 kV, ~100 A, ~100 ms, 0.1 T). The apparatus allows to determine spectra of two electron energy components with resolution in space and time. Axial energy distributions are measured with the electric cut-off method. The transverse component of energy is determined  from the effect of an additionally introduced magnetic field on the cut-off curves. The developed set-up was tested with 60 keV, 1-10 A/cm2, 100 ms electron beam from a thermionic cathode. Analyzer performance was found to comply with digital simulation results and design parameters.