Experimental study of the new nanosecond electron beam in the Fakel accelerator

The Fakel linear accelerator is used for physical investigations as a neutron pulse source. To improve accelerator performances as a neutron source measures are taken to increase pulse current and decrease its duration. Generator on nonlinear ferrite lines with compression circuits is selected as a generator of nonosecond pulses of anode voltage of electron gun. The results of investigation have shown, that current losses in the section for beam transport from electron gun to the entrance of the buncher constitute 20%, for the buncher the losses constitute 50% of total current of the electron gun. Parameters of the new nanosecond beam are as follows: energy - 60 MeV, pulse current - 5 A. The taken measures on the Fakel accelerator modernization permitted to increase its quality as a neutron source by a factor of more than 10