Time-resolved measurement of energy and species of an intense pulsed ion beam

Abstract

A time-resolvable Thomson-parabola spectrometer is developed employing a microchannel-plate image intensifier, which acts as a high-speed shutter (∼5 ns) by gating the applied voltage. Using such a spectrometer, we have achieved the measurement of temporal behavior of beam energy for various ion species of an intense pulsed ion beam extracted from a dual-current-feed magnetically insulated diode. The energy of protons is found to be in a good agreement with the diode voltage.