Status of high-current tandem accelerator for the neutron therapy facility

The development of a neutrons source for boron neutron capture therapy based on the compact and inexpensive accelerator is possible [1]. Results and discussion Fig. 1 shows the construction of vacuum insulation tandem accelerator developed at BINP, as a base of neutrons source, using the sectionalized rectifier 5 from industrial ELV-type electron accelerator, as a powerful source of high voltage. Negative hydrogen ion beam, produced in ion source 1, after passing low energy beam tract 2 is injected into electrostatic tandem accelerator with vacuum insulation. After charge-exchange of negative hydrogen ion in proton inside stripper tube in the center of high-voltage electrode, a proton beam, which is accelerated to double voltage of high-voltage electrode, is formed at the outlet of the tandem