Direct current H(-) source for boron neutron capture therapy tandem accelerator

Rev Sci Instrum. 2008 Feb;79(2 Pt 2):02A521. doi: 10.1063/1.2816787.

Abstract

One year experience of dc H(-) source operation at 2 MeV tandem accelerator is described. The source delivers H(-) ion beams with controlled current in the range of 1-8 mA and energy up to 25 keV. Normalized 1 rms emittance for 8 mA beam is less than 0.2 pi mm mrad. Negative ions are produced on the cesiated anode of the Penning discharge, driven by plasma injection from the hollow cathode inserts.