Production of high-current electron beams in an explosive-emission diode at gas pressures ∼ 10− 2–10−1 torr

Abstract

Data on production of electron beams with ∼200 keV electrons and above ∼100 A beam current in a diode with an explosive-emission cathode at background gas pressures ∼10−2−10−1 torr are presented. Discharge regimes with high-voltage stage duration up to 500–800 ns at 10−2 torr and 80 ns at 10−1 torr have been obtained. The duration of the electron beam behind a 50 μm thick titanium foil was equal to 200 and 400 ns, respectively, and was limited by the transmittance of the foil.