Abstract
Longitudinal and transverse beam dynamics studies in the injector section of 30 MeV, 10 Amp, 10 nsec RF electron linac for neutron production has been carried out in this paper. To properly consider space charge effect, multiparticle simulation is performed in PIC code ASTRA. Gun extraction voltage is considered as 85 kV and the beam is subsequently injected to prebuncher and buncher section. Solenoids are used to confine the beam to achieve maximum transmission efficiency. Also we showed that by increasing beam current in the presence of buncher of field 10 MV/m, capture efficiency decreases. Threshold beam current due to BBU has also been calculated.
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