Functional test of electron beam extraction for pulse electron irradiator

Abstract

Abstract Function test of electron beam extraction for pulse electron. The functional test of pulse electron beam extraction has been performed. The purpose of the functional test is to know the magnitude of the current and the distribution of the extracted electron beam. The plasma current detection system consists of three Rogowski coils mounted on output cables of Ignitor Discharge Power Supply (IDPS), Arc Discharge Power Supply (ADPS) and Faraday Cup (FC), while the voltage and pulse width are observed using an Oscilloscope. From the measurement results obtained that the spot and plasma currents are 11,24 A and 119,65 A. At the extraction voltage of 3 kV obtained the maximum extraction current are 13,1 A and 6,7 A for the position of FC near the ignitor electrode and in the middle of the grid respectively. It can be concluded that the pulsed electron beam can be extracted by the distribution of the beam near the ignitor electrode higher than in the middle position of the grid.